PSP Bibliography

Modeling CME encounters at Parker Solar Probe with OSPREI: Dependence on photospheric and coronal conditions

Context. Coronal mass ejections (CMEs) are eruptions of plasma from the Sun that travel through interplanetary space and may encounter Earth. CMEs often enclose a magnetic flux rope (MFR), the orientation of which largely determines the CMEs geoeffectiveness. Current operational CME models do not model MFRs, but a number of research ones do, including the Open Solar Physics Rapid Ensemble Information (OSPREI) model. \ Aims: We report the sensitivity of OSPREI to a range of user-selected photospheric and coronal conditions. ...

Ledvina, Vincent; Palmerio, Erika; Kay, Christina; Al-Haddad, Nada; Riley, Pete;

Published by: \aap Published on: may

YEAR: 2023 DOI: 10.1051/0004-6361/202245445

Parker Data Used; Sun: coronal mass ejections (CMEs); Sun: photosphere; Sun: magnetic fields; Solar wind; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

Modeling CME encounters at Parker Solar Probe with OSPREI: Dependence on photospheric and coronal conditions

Context. Coronal mass ejections (CMEs) are eruptions of plasma from the Sun that travel through interplanetary space and may encounter Earth. CMEs often enclose a magnetic flux rope (MFR), the orientation of which largely determines the CMEs geoeffectiveness. Current operational CME models do not model MFRs, but a number of research ones do, including the Open Solar Physics Rapid Ensemble Information (OSPREI) model. \ Aims: We report the sensitivity of OSPREI to a range of user-selected photospheric and coronal conditions. ...

Ledvina, Vincent; Palmerio, Erika; Kay, Christina; Al-Haddad, Nada; Riley, Pete;

Published by: \aap Published on: may

YEAR: 2023 DOI: 10.1051/0004-6361/202245445

Parker Data Used; Sun: coronal mass ejections (CMEs); Sun: photosphere; Sun: magnetic fields; Solar wind; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

Fundamental solution of diffusion equation for Kappa gas: Diffusion length for suprathermal electrons in solar wind

A recent numerical treatment of data obtained by the Parker Solar Probe spacecraft describes the electron concentration in solar wind as a function of the heliocentric distance based on a Kappa

Benetti, M.~H.; Silveira, F.~E.~M.; Caldas, I.~L.;

Published by: \pre Published on: may

YEAR: 2023 DOI: 10.1103/PhysRevE.107.055212

Parker Data Used

Unexpected energetic particle observations near the Sun by Parker Solar Probe and Solar Orbiter

Solar energetic particles (SEPs) from suprathermal (few keV) up to relativistic (\ensuremath\simfew GeV) energies are accelerated at the Sun in association with solar flares and coronal mass ejection-driven shock waves. Although our knowledge of the origin, acceleration, and transport of these particles from close to the Sun through the interplanetary medium has advanced dramatically in the last 40 years, many puzzles have still remained unsolved due to the scarcity of in situ measurements well inside 1 AU. Furthermore, ener ...

Malandraki, O.~E.; Cohen, C.~M.~S.; Giacalone, J.; Mitchell, J.~G.; Chhiber, R.; McComas, D.~J.; iguez-Pacheco, Rodr\; Wimmer-Schweingruber, R.~F.; Ho, G.~C.;

Published by: Physics of Plasmas Published on: may

YEAR: 2023 DOI: 10.1063/5.0147683

Parker Data Used

Unexpected energetic particle observations near the Sun by Parker Solar Probe and Solar Orbiter

Solar energetic particles (SEPs) from suprathermal (few keV) up to relativistic (\ensuremath\simfew GeV) energies are accelerated at the Sun in association with solar flares and coronal mass ejection-driven shock waves. Although our knowledge of the origin, acceleration, and transport of these particles from close to the Sun through the interplanetary medium has advanced dramatically in the last 40 years, many puzzles have still remained unsolved due to the scarcity of in situ measurements well inside 1 AU. Furthermore, ener ...

Malandraki, O.~E.; Cohen, C.~M.~S.; Giacalone, J.; Mitchell, J.~G.; Chhiber, R.; McComas, D.~J.; iguez-Pacheco, Rodr\; Wimmer-Schweingruber, R.~F.; Ho, G.~C.;

Published by: Physics of Plasmas Published on: may

YEAR: 2023 DOI: 10.1063/5.0147683

Parker Data Used

The S-Web Origin of Composition Enhancement in the Slow-to-moderate Speed Solar Wind

Connecting the solar wind observed throughout the heliosphere to its origins in the solar corona is one of the central aims of heliophysics. The variability in the magnetic field, bulk plasma, and heavy ion composition properties of the slow wind are thought to result from magnetic reconnection processes in the solar corona. We identify regions of enhanced variability and composition in the solar wind from 2003 April 15 to May 13 (Carrington Rotation 2002), observed by the Wind and Advanced Composition Explorer spacecraft, a ...

Lynch, B.~J.; Viall, N.~M.; Higginson, A.~K.; Zhao, L.; Lepri, S.~T.; Sun, X.;

Published by: \apj Published on: may

YEAR: 2023 DOI: 10.3847/1538-4357/acc38c

Parker Data Used; Slow solar wind; Solar magnetic reconnection; Space plasmas; interplanetary turbulence; Solar Physics; Solar magnetic fields; Heliosphere; 1873; 1504; 1544; 830; 1476; 1503; 711; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

Constraining a Model of the Radio Sky below 6 MHz Using the Parker Solar Probe/FIELDS Instrument in Preparation for Upcoming Lunar-based Experiments

We present a Bayesian analysis of data from the FIELDS instrument on board the Parker Solar Probe (PSP) spacecraft with the aim of constraining low-frequency (\ensuremath\lesssim6 MHz) sky in preparation for several upcoming lunar-based experiments. We utilize data recorded during PSP s coning roll maneuvers, in which the axis of the spacecraft is pointed 45\textdegree off of the Sun. The spacecraft then rotates about a line between the Sun and the spacecraft with a period of 24 minutes. We reduce the data into two formats: ...

Bassett, Neil; Rapetti, David; Nhan, Bang; Page, Brent; Burns, Jack; Pulupa, Marc; Bale, Stuart;

Published by: \apj Published on: mar

YEAR: 2023 DOI: 10.3847/1538-4357/acbc76

Parker Data Used; Radio astronomy; Astronomy data analysis; Bayesian statistics; Nested sampling; Cosmology; Interstellar synchrotron emission; Interstellar absorption; 1338; 1858; 1900; 1894; 343; 856; 831; Astrophysics - Astrophysics of Galaxies; Astrophysics - Earth and Planetary Astrophysics; Astrophysics - Solar and Stellar Astrophysics

Magnetic Reconnection as the Driver of the Solar Wind

We present EUV solar observations showing evidence for omnipresent jetting activity driven by small-scale magnetic reconnection at the base of the solar corona. We argue that the physical mechanism that heats and drives the solar wind at its source is ubiquitous magnetic reconnection in the form of small-scale jetting activity (a.k.a. jetlets). This jetting activity, like the solar wind and the heating of the coronal plasma, is ubiquitous regardless of the solar cycle phase. Each event arises from small-scale reconnection of ...

Raouafi, Nour; Stenborg, G.; Seaton, D.~B.; Wang, H.; Wang, J.; DeForest, C.~E.; Bale, S.~D.; Drake, J.~F.; Uritsky, V.~M.; Karpen, J.~T.; DeVore, C.~R.; Sterling, A.~C.; Horbury, T.~S.; Harra, L.~K.; Bourouaine, S.; Kasper, J.~C.; Kumar, P.; Phan, T.~D.; Velli, M.;

Published by: \apj Published on: mar

YEAR: 2023 DOI: 10.3847/1538-4357/acaf6c

Parker Data Used; Solar corona; Solar wind; magnetic fields; Solar magnetic reconnection; 1483; 1534; 994; 1504; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

Time Dependence of 50-250 MeV Galactic Cosmic-Ray Protons between Solar Cycles 24 and 25, Measured by the High-energy Particle Detector on board the CSES-01 Satellite

Time-dependent energy spectra of galactic cosmic rays (GCRs) carry crucial information regarding their origin and propagation throughout the interstellar environment. When observed at the Earth, after traversing the interplanetary medium, such spectra are heavily affected by the solar wind and the embedded solar magnetic field permeating the inner sectors of the heliosphere. The activity of the Sun changes significantly over an 11 yr solar cycle-and so does the effect on cosmic particles; this translates into a phenomenon ca ...

Martucci, M.; Ammendola, R.; Badoni, D.; Bartocci, S.; Battiston, R.; Beolè, S.; Burger, W.~J.; Campana, D.; Castellini, G.; Cipollone, P.; Coli, S.; Conti, L.; Contin, A.; Cristoforetti, M.; Angelo, G.; De Donato, C.; De Santis, C.; Di Luca, A.; Follega, F.~M.; Gebbia, G.; Iuppa, R.; Lega, A.; Lolli, M.; Marcelli, N.; Masciantonio, G.; Mergè, M.; Mese, M.; Neubüser, C.; Nozzoli, F.; Oliva, A.; Osteria, G.; Pacini, L.; Palma, F.; Palmonari, F.; Panico, B.; Parmentier, A.; Perciballi, S.; Perfetto, F.; Picozza, P.; Pozzato, M.; Rebustini, G.~M.; Ricci, E.; Ricci, M.; Ricciarini, S.~B.; Savino, U.; Sahnoun, Z.; Scotti, V.; Sotgiu, A.; Sparvoli, R.; Ubertini, P.; Vilona, V.; Vitale, V.; Zoffoli, S.; Zuccon, P.; Aslam, O.~P.~M.; Ngobeni, M.~D.; Potgieter, M.~S.;

Published by: \apjl Published on: mar

YEAR: 2023 DOI: 10.3847/2041-8213/acbea7

Parker Data Used; Active sun; Heliosphere; Galactic cosmic rays; 18; 711; 567

Time Dependence of 50-250 MeV Galactic Cosmic-Ray Protons between Solar Cycles 24 and 25, Measured by the High-energy Particle Detector on board the CSES-01 Satellite

Time-dependent energy spectra of galactic cosmic rays (GCRs) carry crucial information regarding their origin and propagation throughout the interstellar environment. When observed at the Earth, after traversing the interplanetary medium, such spectra are heavily affected by the solar wind and the embedded solar magnetic field permeating the inner sectors of the heliosphere. The activity of the Sun changes significantly over an 11 yr solar cycle-and so does the effect on cosmic particles; this translates into a phenomenon ca ...

Martucci, M.; Ammendola, R.; Badoni, D.; Bartocci, S.; Battiston, R.; Beolè, S.; Burger, W.~J.; Campana, D.; Castellini, G.; Cipollone, P.; Coli, S.; Conti, L.; Contin, A.; Cristoforetti, M.; Angelo, G.; De Donato, C.; De Santis, C.; Di Luca, A.; Follega, F.~M.; Gebbia, G.; Iuppa, R.; Lega, A.; Lolli, M.; Marcelli, N.; Masciantonio, G.; Mergè, M.; Mese, M.; Neubüser, C.; Nozzoli, F.; Oliva, A.; Osteria, G.; Pacini, L.; Palma, F.; Palmonari, F.; Panico, B.; Parmentier, A.; Perciballi, S.; Perfetto, F.; Picozza, P.; Pozzato, M.; Rebustini, G.~M.; Ricci, E.; Ricci, M.; Ricciarini, S.~B.; Savino, U.; Sahnoun, Z.; Scotti, V.; Sotgiu, A.; Sparvoli, R.; Ubertini, P.; Vilona, V.; Vitale, V.; Zoffoli, S.; Zuccon, P.; Aslam, O.~P.~M.; Ngobeni, M.~D.; Potgieter, M.~S.;

Published by: \apjl Published on: mar

YEAR: 2023 DOI: 10.3847/2041-8213/acbea7

Parker Data Used; Active sun; Heliosphere; Galactic cosmic rays; 18; 711; 567

Time Dependence of 50-250 MeV Galactic Cosmic-Ray Protons between Solar Cycles 24 and 25, Measured by the High-energy Particle Detector on board the CSES-01 Satellite

Time-dependent energy spectra of galactic cosmic rays (GCRs) carry crucial information regarding their origin and propagation throughout the interstellar environment. When observed at the Earth, after traversing the interplanetary medium, such spectra are heavily affected by the solar wind and the embedded solar magnetic field permeating the inner sectors of the heliosphere. The activity of the Sun changes significantly over an 11 yr solar cycle-and so does the effect on cosmic particles; this translates into a phenomenon ca ...

Martucci, M.; Ammendola, R.; Badoni, D.; Bartocci, S.; Battiston, R.; Beolè, S.; Burger, W.~J.; Campana, D.; Castellini, G.; Cipollone, P.; Coli, S.; Conti, L.; Contin, A.; Cristoforetti, M.; Angelo, G.; De Donato, C.; De Santis, C.; Di Luca, A.; Follega, F.~M.; Gebbia, G.; Iuppa, R.; Lega, A.; Lolli, M.; Marcelli, N.; Masciantonio, G.; Mergè, M.; Mese, M.; Neubüser, C.; Nozzoli, F.; Oliva, A.; Osteria, G.; Pacini, L.; Palma, F.; Palmonari, F.; Panico, B.; Parmentier, A.; Perciballi, S.; Perfetto, F.; Picozza, P.; Pozzato, M.; Rebustini, G.~M.; Ricci, E.; Ricci, M.; Ricciarini, S.~B.; Savino, U.; Sahnoun, Z.; Scotti, V.; Sotgiu, A.; Sparvoli, R.; Ubertini, P.; Vilona, V.; Vitale, V.; Zoffoli, S.; Zuccon, P.; Aslam, O.~P.~M.; Ngobeni, M.~D.; Potgieter, M.~S.;

Published by: \apjl Published on: mar

YEAR: 2023 DOI: 10.3847/2041-8213/acbea7

Parker Data Used; Active sun; Heliosphere; Galactic cosmic rays; 18; 711; 567

Time Dependence of 50-250 MeV Galactic Cosmic-Ray Protons between Solar Cycles 24 and 25, Measured by the High-energy Particle Detector on board the CSES-01 Satellite

Time-dependent energy spectra of galactic cosmic rays (GCRs) carry crucial information regarding their origin and propagation throughout the interstellar environment. When observed at the Earth, after traversing the interplanetary medium, such spectra are heavily affected by the solar wind and the embedded solar magnetic field permeating the inner sectors of the heliosphere. The activity of the Sun changes significantly over an 11 yr solar cycle-and so does the effect on cosmic particles; this translates into a phenomenon ca ...

Martucci, M.; Ammendola, R.; Badoni, D.; Bartocci, S.; Battiston, R.; Beolè, S.; Burger, W.~J.; Campana, D.; Castellini, G.; Cipollone, P.; Coli, S.; Conti, L.; Contin, A.; Cristoforetti, M.; Angelo, G.; De Donato, C.; De Santis, C.; Di Luca, A.; Follega, F.~M.; Gebbia, G.; Iuppa, R.; Lega, A.; Lolli, M.; Marcelli, N.; Masciantonio, G.; Mergè, M.; Mese, M.; Neubüser, C.; Nozzoli, F.; Oliva, A.; Osteria, G.; Pacini, L.; Palma, F.; Palmonari, F.; Panico, B.; Parmentier, A.; Perciballi, S.; Perfetto, F.; Picozza, P.; Pozzato, M.; Rebustini, G.~M.; Ricci, E.; Ricci, M.; Ricciarini, S.~B.; Savino, U.; Sahnoun, Z.; Scotti, V.; Sotgiu, A.; Sparvoli, R.; Ubertini, P.; Vilona, V.; Vitale, V.; Zoffoli, S.; Zuccon, P.; Aslam, O.~P.~M.; Ngobeni, M.~D.; Potgieter, M.~S.;

Published by: \apjl Published on: mar

YEAR: 2023 DOI: 10.3847/2041-8213/acbea7

Parker Data Used; Active sun; Heliosphere; Galactic cosmic rays; 18; 711; 567

Arguments for the physical nature of the triggered ion-acoustic waves observed on the Parker Solar Probe

Triggered ion-acoustic waves are a pair of coupled waves observed in the previously unexplored plasma regime near the Sun. They may be capable of producing important effects on the solar wind. Because this wave mode has not been observed or studied previously and it is not fully understood, the issue of whether it has a natural origin or is an instrumental artifact can be raised. This paper discusses this issue by examining 13 features of the data such as whether the triggered ion-acoustic waves are electrostatic, whether th ...

Mozer, Forrest; Bale, Stuart; Kellogg, Paul; Romeo, Orlando; Vasko, Ivan; Verniero, Jaye;

Published by: Physics of Plasmas Published on: jun

YEAR: 2023 DOI: 10.1063/5.0151423

Parker Data Used; Astrophysics - Solar and Stellar Astrophysics

Formation, Structure, and Detectability of the Geminids Meteoroid Stream

The Geminids meteoroid stream produces one of the most intense meteor showers at Earth. It is an unusual stream in that its parent body is understood to be an asteroid, (3200) Phaethon, unlike most streams, which are formed via ongoing cometary activity. Until recently, our primary understanding of this stream came from Earth-based measurements of the Geminids meteor shower. However, the Parker Solar Probe (PSP) spacecraft has transited near the core of the stream close to its perihelion and provides a new platform to better ...

Cukier, W.~Z.; Szalay, J.~R.;

Published by: \psj Published on: jun

YEAR: 2023 DOI: 10.3847/PSJ/acd538

Parker Data Used; Meteoroid dust clouds; Interplanetary dust; Zodiacal cloud; 1039; 821; 1845; Astrophysics - Earth and Planetary Astrophysics

Interchange reconnection as the source of the fast solar wind within coronal holes

The fast solar wind that fills the heliosphere originates from deep within regions of open magnetic field on the Sun called coronal holes . The energy source responsible for accelerating the plasma is widely debated; however, there is evidence that it is ultimately magnetic in nature, with candidate mechanisms including wave heating$^1,2$ and interchange reconnection$^3-5$. The coronal magnetic field near the solar surface is structured on scales associated with supergranulation convection cells, whereby descending flows ...

Bale, S.~D.; Drake, J.~F.; McManus, M.~D.; Desai, M.~I.; Badman, S.~T.; Larson, D.~E.; Swisdak, M.; Horbury, T.~S.; Raouafi, N.~E.; Phan, T.; Velli, M.; McComas, D.~J.; Cohen, C.~M.~S.; Mitchell, D.; Panasenco, O.; Kasper, J.~C.;

Published by: \nat Published on: jun

YEAR: 2023 DOI: 10.1038/s41586-023-05955-3

Parker Data Used; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

A Dust Detection Database for the Inner Heliosphere Using the Parker Solar Probe Spacecraft

A database of in situ dust impact detections made by the Parker Solar Probe spacecraft is created to facilitate studies of interplanetary dust dynamics in the inner heliosphere. A standardized dust detection methodology is established and tested for validity. Individual impact detections are included in the database, and are used to derive dust impact rates. Impact rates are corrected for effects related to high-amplitude plasma waves and undercounting due to finite detection window duration. These corrections suggest that: ...

Malaspina, David; Toma, Alexandru; Szalay, Jamey; Pulupa, Marc; y, Petr; Bale, Stuart; Goetz, Keith;

Published by: \apjs Published on: jun

YEAR: 2023 DOI: 10.3847/1538-4365/acca75

Parker Data Used; Interplanetary dust; Solar wind; space vehicles; Zodiacal cloud; Astronomy databases; 821; 1534; 1549; 1845; 83

A Dust Detection Database for the Inner Heliosphere Using the Parker Solar Probe Spacecraft

A database of in situ dust impact detections made by the Parker Solar Probe spacecraft is created to facilitate studies of interplanetary dust dynamics in the inner heliosphere. A standardized dust detection methodology is established and tested for validity. Individual impact detections are included in the database, and are used to derive dust impact rates. Impact rates are corrected for effects related to high-amplitude plasma waves and undercounting due to finite detection window duration. These corrections suggest that: ...

Malaspina, David; Toma, Alexandru; Szalay, Jamey; Pulupa, Marc; y, Petr; Bale, Stuart; Goetz, Keith;

Published by: \apjs Published on: jun

YEAR: 2023 DOI: 10.3847/1538-4365/acca75

Parker Data Used; Interplanetary dust; Solar wind; space vehicles; Zodiacal cloud; Astronomy databases; 821; 1534; 1549; 1845; 83

A Dust Detection Database for the Inner Heliosphere Using the Parker Solar Probe Spacecraft

A database of in situ dust impact detections made by the Parker Solar Probe spacecraft is created to facilitate studies of interplanetary dust dynamics in the inner heliosphere. A standardized dust detection methodology is established and tested for validity. Individual impact detections are included in the database, and are used to derive dust impact rates. Impact rates are corrected for effects related to high-amplitude plasma waves and undercounting due to finite detection window duration. These corrections suggest that: ...

Malaspina, David; Toma, Alexandru; Szalay, Jamey; Pulupa, Marc; y, Petr; Bale, Stuart; Goetz, Keith;

Published by: \apjs Published on: jun

YEAR: 2023 DOI: 10.3847/1538-4365/acca75

Parker Data Used; Interplanetary dust; Solar wind; space vehicles; Zodiacal cloud; Astronomy databases; 821; 1534; 1549; 1845; 83

New Observations of Solar Wind 1/f Turbulence Spectrum from Parker Solar Probe

The trace magnetic power spectrum in the solar wind is known to be characterized by a double power law at scales much larger than the proton gyro-radius, with flatter spectral exponents close to -1 found at the lower frequencies below an inertial range with indices closer to [-1.5, -1.67]. The origin of the 1/f range is still under debate. In this study, we selected 109 magnetically incompressible solar wind intervals (\ensuremath\delta\ensuremath\mid B \ensuremath\mid/\ensuremath\mid B \ensuremath\mid \ensuremath\ll 1) from ...

Huang, Zesen; Sioulas, Nikos; Shi, Chen; Velli, Marco; Bowen, Trevor; Davis, Nooshin; Chandran, B.~D.~G.; Matteini, Lorenzo; Kang, Ning; Shi, Xiaofei; Huang, Jia; Bale, Stuart; Kasper, J.~C.; Larson, Davin; Livi, Roberto; Whittlesey, P.~L.; Rahmati, Ali; Paulson, Kristoff; Stevens, M.; Case, A.~W.; de Wit, Thierry; Malaspina, David; Bonnell, J.~W.; Goetz, Keith; Harvey, Peter; MacDowall, Robert;

Published by: \apjl Published on: jun

YEAR: 2023 DOI: 10.3847/2041-8213/acd7f2

Parker Data Used; Solar wind; interplanetary turbulence; Magnetohydrodynamics; Space plasmas; Heliosphere; Alfven waves; 1534; 830; 1964; 1544; 711; 23; Astrophysics - Solar and Stellar Astrophysics; Physics - Fluid Dynamics; Physics - Geophysics; Physics - Plasma Physics; Physics - Space Physics

New Observations of Solar Wind 1/f Turbulence Spectrum from Parker Solar Probe

The trace magnetic power spectrum in the solar wind is known to be characterized by a double power law at scales much larger than the proton gyro-radius, with flatter spectral exponents close to -1 found at the lower frequencies below an inertial range with indices closer to [-1.5, -1.67]. The origin of the 1/f range is still under debate. In this study, we selected 109 magnetically incompressible solar wind intervals (\ensuremath\delta\ensuremath\mid B \ensuremath\mid/\ensuremath\mid B \ensuremath\mid \ensuremath\ll 1) from ...

Huang, Zesen; Sioulas, Nikos; Shi, Chen; Velli, Marco; Bowen, Trevor; Davis, Nooshin; Chandran, B.~D.~G.; Matteini, Lorenzo; Kang, Ning; Shi, Xiaofei; Huang, Jia; Bale, Stuart; Kasper, J.~C.; Larson, Davin; Livi, Roberto; Whittlesey, P.~L.; Rahmati, Ali; Paulson, Kristoff; Stevens, M.; Case, A.~W.; de Wit, Thierry; Malaspina, David; Bonnell, J.~W.; Goetz, Keith; Harvey, Peter; MacDowall, Robert;

Published by: \apjl Published on: jun

YEAR: 2023 DOI: 10.3847/2041-8213/acd7f2

Parker Data Used; Solar wind; interplanetary turbulence; Magnetohydrodynamics; Space plasmas; Heliosphere; Alfven waves; 1534; 830; 1964; 1544; 711; 23; Astrophysics - Solar and Stellar Astrophysics; Physics - Fluid Dynamics; Physics - Geophysics; Physics - Plasma Physics; Physics - Space Physics

New Observations of Solar Wind 1/f Turbulence Spectrum from Parker Solar Probe

The trace magnetic power spectrum in the solar wind is known to be characterized by a double power law at scales much larger than the proton gyro-radius, with flatter spectral exponents close to -1 found at the lower frequencies below an inertial range with indices closer to [-1.5, -1.67]. The origin of the 1/f range is still under debate. In this study, we selected 109 magnetically incompressible solar wind intervals (\ensuremath\delta\ensuremath\mid B \ensuremath\mid/\ensuremath\mid B \ensuremath\mid \ensuremath\ll 1) from ...

Huang, Zesen; Sioulas, Nikos; Shi, Chen; Velli, Marco; Bowen, Trevor; Davis, Nooshin; Chandran, B.~D.~G.; Matteini, Lorenzo; Kang, Ning; Shi, Xiaofei; Huang, Jia; Bale, Stuart; Kasper, J.~C.; Larson, Davin; Livi, Roberto; Whittlesey, P.~L.; Rahmati, Ali; Paulson, Kristoff; Stevens, M.; Case, A.~W.; de Wit, Thierry; Malaspina, David; Bonnell, J.~W.; Goetz, Keith; Harvey, Peter; MacDowall, Robert;

Published by: \apjl Published on: jun

YEAR: 2023 DOI: 10.3847/2041-8213/acd7f2

Parker Data Used; Solar wind; interplanetary turbulence; Magnetohydrodynamics; Space plasmas; Heliosphere; Alfven waves; 1534; 830; 1964; 1544; 711; 23; Astrophysics - Solar and Stellar Astrophysics; Physics - Fluid Dynamics; Physics - Geophysics; Physics - Plasma Physics; Physics - Space Physics

The Evolution of the 1/f Range within a Single Fast-solar-wind Stream between 17.4 and 45.7 Solar Radii

The power spectrum of magnetic field fluctuations in the fast solar wind (V $_SW$ > 500 km s$^-1$) at magnetohydrodynamic scales is characterized by two different power laws on either side of a break frequency f $_b$. The low-frequency range at frequencies f smaller than f $_b$ is often viewed as the energy reservoir that feeds the turbulent cascade at f > f $_b$. At heliocentric distances r exceeding 60 solar radii (R $_s$), the power spectrum often has a 1/f scaling at f < f $_b$, i.e., the spectral index is close to -1. I ...

Davis, Nooshin; Chandran, B.~D.~G.; Bowen, T.~A.; Badman, S.~T.; de Wit, Dudok; Chen, C.~H.~K.; Bale, S.~D.; Huang, Zesen; Sioulas, Nikos; Velli, Marco;

Published by: \apj Published on: jun

YEAR: 2023 DOI: 10.3847/1538-4357/acd177

Parker Data Used; Magnetohydrodynamics; Solar wind; interplanetary turbulence; 1964; 1534; 830; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

Anterograde Collisional Analysis of Solar Wind Ions

Owing to its low density and high temperature, the solar wind frequently exhibits strong departures from local thermodynamic equilibrium, which include distinct temperatures for its constituent ions. Prior studies have found that the ratio of the temperatures of the two most abundant ions-protons (ionized hydrogen) and \ensuremath\alpha-particles (ionized helium)-is strongly correlated with the Coulomb collisional age. These previous studies, though, have been largely limited to using observations from single missions. In co ...

Johnson, E.; Maruca, B.~A.; McManus, M.; Klein, K.~G.; Lichko, E.~R.; Verniero, J.; Paulson, K.~W.; DeWeese, H.; Dieguez, I.; Qudsi, R.~A.; Kasper, J.; Stevens, M.; Alterman, B.~L.; Wilson, L.~B.; Livi, R.; Rahmati, A.; Larson, D.;

Published by: \apj Published on: jun

YEAR: 2023 DOI: 10.3847/1538-4357/accc32

Parker Data Used; Solar wind; Collision physics; Plasma physics; 1534; 2065; 2089

The 17 April 2021 widespread solar energetic particle event

Context. A complex and long-lasting solar eruption on 17 April 2021 produced a widespread solar energetic particle (SEP) event that was observed by five longitudinally well-separated observers in the inner heliosphere that covered distances to the Sun from 0.42 to 1 au: BepiColombo, Parker Solar Probe, Solar Orbiter, STEREO A, and near-Earth spacecraft. The event was the second widespread SEP event detected in solar cycle 25, and it produced relativistic electrons and protons. It was associated with a long-lasting solar hard ...

Dresing, N.; ia, Rodr\; Jebaraj, I.~C.; Warmuth, A.; Wallace, S.; Balmaceda, L.; Podladchikova, T.; Strauss, R.~D.; Kouloumvakos, A.; Palmroos, C.; Krupar, V.; Gieseler, J.; Xu, Z.; Mitchell, J.~G.; Cohen, C.~M.~S.; De Nolfo, G.~A.; Palmerio, E.; Carcaboso, F.; Kilpua, E.~K.~J.; Trotta, D.; Auster, U.; Asvestari, E.; da Silva, D.; Dröge, W.; Getachew, T.; omez-Herrero, R.; Grande, M.; Heyner, D.; Holmström, M.; Huovelin, J.; Kartavykh, Y.; Laurenza, M.; Lee, C.~O.; Mason, G.; Maksimovic, M.; Mieth, J.; Murakami, G.; Oleynik, P.; Pinto, M.; Pulupa, M.; Richter, I.; iguez-Pacheco, Rodr\; anchez-Cano, B.; Schuller, F.; Ueno, H.; Vainio, R.; Vecchio, A.; Veronig, A.~M.; Wijsen, N.;

Published by: \aap Published on: jun

YEAR: 2023 DOI: 10.1051/0004-6361/202345938

Parker Data Used; Sun: particle emission; Sun: heliosphere; Sun: flares; Sun: coronal mass ejections (CMEs); Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

The 17 April 2021 widespread solar energetic particle event

Context. A complex and long-lasting solar eruption on 17 April 2021 produced a widespread solar energetic particle (SEP) event that was observed by five longitudinally well-separated observers in the inner heliosphere that covered distances to the Sun from 0.42 to 1 au: BepiColombo, Parker Solar Probe, Solar Orbiter, STEREO A, and near-Earth spacecraft. The event was the second widespread SEP event detected in solar cycle 25, and it produced relativistic electrons and protons. It was associated with a long-lasting solar hard ...

Dresing, N.; ia, Rodr\; Jebaraj, I.~C.; Warmuth, A.; Wallace, S.; Balmaceda, L.; Podladchikova, T.; Strauss, R.~D.; Kouloumvakos, A.; Palmroos, C.; Krupar, V.; Gieseler, J.; Xu, Z.; Mitchell, J.~G.; Cohen, C.~M.~S.; De Nolfo, G.~A.; Palmerio, E.; Carcaboso, F.; Kilpua, E.~K.~J.; Trotta, D.; Auster, U.; Asvestari, E.; da Silva, D.; Dröge, W.; Getachew, T.; omez-Herrero, R.; Grande, M.; Heyner, D.; Holmström, M.; Huovelin, J.; Kartavykh, Y.; Laurenza, M.; Lee, C.~O.; Mason, G.; Maksimovic, M.; Mieth, J.; Murakami, G.; Oleynik, P.; Pinto, M.; Pulupa, M.; Richter, I.; iguez-Pacheco, Rodr\; anchez-Cano, B.; Schuller, F.; Ueno, H.; Vainio, R.; Vecchio, A.; Veronig, A.~M.; Wijsen, N.;

Published by: \aap Published on: jun

YEAR: 2023 DOI: 10.1051/0004-6361/202345938

Parker Data Used; Sun: particle emission; Sun: heliosphere; Sun: flares; Sun: coronal mass ejections (CMEs); Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

The 17 April 2021 widespread solar energetic particle event

Context. A complex and long-lasting solar eruption on 17 April 2021 produced a widespread solar energetic particle (SEP) event that was observed by five longitudinally well-separated observers in the inner heliosphere that covered distances to the Sun from 0.42 to 1 au: BepiColombo, Parker Solar Probe, Solar Orbiter, STEREO A, and near-Earth spacecraft. The event was the second widespread SEP event detected in solar cycle 25, and it produced relativistic electrons and protons. It was associated with a long-lasting solar hard ...

Dresing, N.; ia, Rodr\; Jebaraj, I.~C.; Warmuth, A.; Wallace, S.; Balmaceda, L.; Podladchikova, T.; Strauss, R.~D.; Kouloumvakos, A.; Palmroos, C.; Krupar, V.; Gieseler, J.; Xu, Z.; Mitchell, J.~G.; Cohen, C.~M.~S.; De Nolfo, G.~A.; Palmerio, E.; Carcaboso, F.; Kilpua, E.~K.~J.; Trotta, D.; Auster, U.; Asvestari, E.; da Silva, D.; Dröge, W.; Getachew, T.; omez-Herrero, R.; Grande, M.; Heyner, D.; Holmström, M.; Huovelin, J.; Kartavykh, Y.; Laurenza, M.; Lee, C.~O.; Mason, G.; Maksimovic, M.; Mieth, J.; Murakami, G.; Oleynik, P.; Pinto, M.; Pulupa, M.; Richter, I.; iguez-Pacheco, Rodr\; anchez-Cano, B.; Schuller, F.; Ueno, H.; Vainio, R.; Vecchio, A.; Veronig, A.~M.; Wijsen, N.;

Published by: \aap Published on: jun

YEAR: 2023 DOI: 10.1051/0004-6361/202345938

Parker Data Used; Sun: particle emission; Sun: heliosphere; Sun: flares; Sun: coronal mass ejections (CMEs); Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

The 17 April 2021 widespread solar energetic particle event

Context. A complex and long-lasting solar eruption on 17 April 2021 produced a widespread solar energetic particle (SEP) event that was observed by five longitudinally well-separated observers in the inner heliosphere that covered distances to the Sun from 0.42 to 1 au: BepiColombo, Parker Solar Probe, Solar Orbiter, STEREO A, and near-Earth spacecraft. The event was the second widespread SEP event detected in solar cycle 25, and it produced relativistic electrons and protons. It was associated with a long-lasting solar hard ...

Dresing, N.; ia, Rodr\; Jebaraj, I.~C.; Warmuth, A.; Wallace, S.; Balmaceda, L.; Podladchikova, T.; Strauss, R.~D.; Kouloumvakos, A.; Palmroos, C.; Krupar, V.; Gieseler, J.; Xu, Z.; Mitchell, J.~G.; Cohen, C.~M.~S.; De Nolfo, G.~A.; Palmerio, E.; Carcaboso, F.; Kilpua, E.~K.~J.; Trotta, D.; Auster, U.; Asvestari, E.; da Silva, D.; Dröge, W.; Getachew, T.; omez-Herrero, R.; Grande, M.; Heyner, D.; Holmström, M.; Huovelin, J.; Kartavykh, Y.; Laurenza, M.; Lee, C.~O.; Mason, G.; Maksimovic, M.; Mieth, J.; Murakami, G.; Oleynik, P.; Pinto, M.; Pulupa, M.; Richter, I.; iguez-Pacheco, Rodr\; anchez-Cano, B.; Schuller, F.; Ueno, H.; Vainio, R.; Vecchio, A.; Veronig, A.~M.; Wijsen, N.;

Published by: \aap Published on: jun

YEAR: 2023 DOI: 10.1051/0004-6361/202345938

Parker Data Used; Sun: particle emission; Sun: heliosphere; Sun: flares; Sun: coronal mass ejections (CMEs); Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

Total electron temperature derived from quasi-thermal noise spectroscopy in the pristine solar wind from Parker Solar Probe observations

\ Aims: We applied the quasi-thermal noise (QTN) method to Parker Solar Probe (PSP) observations to derive the total electron temperature (T$_e$). We combined a set of encounters to make up a 12-day period of observations around each perihelion from encounter one (E01) to ten (E10), with E08 not included. Here, the heliocentric distance varies from about 13 to 60 solar radii (R$_\ensuremath\odot$). \ Methods: The QTN technique is a reliable tool to yield accurate measurements of the electron parameters in the solar wind. We ...

Liu, M.; Issautier, K.; Moncuquet, M.; Meyer-Vernet, N.; Maksimovic, M.; Huang, J.; Martinovic, M.~M.; Griton, L.; Chrysaphi, N.; Jagarlamudi, V.~K.; Bale, S.~D.; Pulupa, M.; Kasper, J.~C.; Stevens, M.~L.;

Published by: \aap Published on: jun

YEAR: 2023 DOI: 10.1051/0004-6361/202245450

Parker Data Used; Solar wind; Sun: heliosphere; Sun: corona; methods: data analysis; plasmas; acceleration of particles; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

Whole Heliosphere and Planetary Interactions (WHPI): The Big Picture on Solar Cycle Minima

The Whole Heliosphere and Planetary Interactions (WHPI) is an international initiative to study the most recent solar minimum and its impact on the interconnected solar-heliospheric- planetary system by facilitating and encouraging interdisciplinary activities. Particular WHPI science foci include the global connected structure of the heliosphere and planetary space environments/atmospheres, the origins and impacts of high-speed solar wind streams, coronal mass ejections from Sun-to-Heliopause, and comparative solar minima. ...

Gibson, Sarah; Allen, Robert; de Toma, Giuliana; Emery, Barbara; Gasperini, Federico; Hewins, Ian; Hudson, Mary; Qian, Liying; Thompson, Barbara;

Published by: Journal of Geophysical Research (Space Physics) Published on: jun

YEAR: 2023 DOI: 10.1029/2023JA031550

Parker Data Used

On the Evolution of the Anisotropic Scaling of Magnetohydrodynamic Turbulence in the Inner Heliosphere

We analyze a merged Parker Solar Probe (PSP) and Solar Orbiter (SO) data set covering heliocentric distances 13 R $_\ensuremath\odot$ \ensuremath\lesssim R \ensuremath\lesssim 220 R $_\ensuremath\odot$ to investigate the radial evolution of power and spectral index anisotropy in the wavevector space of solar wind turbulence. Our results show that anisotropic signatures of turbulence display a distinct radial evolution when fast, V $_sw$ \ensuremath\geq 400 km s$^-1$, and slow, V $_sw$ \ensuremath\leq 400 km s$^-1$, wind stre ...

Sioulas, Nikos; Velli, Marco; Huang, Zesen; Shi, Chen; Bowen, Trevor; Chandran, B.~D.~G.; Liodis, Ioannis; Davis, Nooshin; Bale, Stuart; Horbury, T.~S.; de Wit, Thierry; Larson, Davin; Stevens, Michael; Kasper, Justin; Owen, Christopher; Case, Anthony; Pulupa, Marc; Malaspina, David; Livi, Roberto; Goetz, Keith; Harvey, Peter; MacDowall, Robert; Bonnell, John;

Published by: \apj Published on: jul

YEAR: 2023 DOI: 10.3847/1538-4357/acc658

Parker Data Used; interplanetary turbulence; Solar wind; Space plasmas; Magnetohydrodynamics; Plasma astrophysics; 830; 1534; 1544; 1964; 1261; Physics - Space Physics; Astrophysics - High Energy Astrophysical Phenomena; Physics - Plasma Physics

On the Evolution of the Anisotropic Scaling of Magnetohydrodynamic Turbulence in the Inner Heliosphere

We analyze a merged Parker Solar Probe (PSP) and Solar Orbiter (SO) data set covering heliocentric distances 13 R $_\ensuremath\odot$ \ensuremath\lesssim R \ensuremath\lesssim 220 R $_\ensuremath\odot$ to investigate the radial evolution of power and spectral index anisotropy in the wavevector space of solar wind turbulence. Our results show that anisotropic signatures of turbulence display a distinct radial evolution when fast, V $_sw$ \ensuremath\geq 400 km s$^-1$, and slow, V $_sw$ \ensuremath\leq 400 km s$^-1$, wind stre ...

Sioulas, Nikos; Velli, Marco; Huang, Zesen; Shi, Chen; Bowen, Trevor; Chandran, B.~D.~G.; Liodis, Ioannis; Davis, Nooshin; Bale, Stuart; Horbury, T.~S.; de Wit, Thierry; Larson, Davin; Stevens, Michael; Kasper, Justin; Owen, Christopher; Case, Anthony; Pulupa, Marc; Malaspina, David; Livi, Roberto; Goetz, Keith; Harvey, Peter; MacDowall, Robert; Bonnell, John;

Published by: \apj Published on: jul

YEAR: 2023 DOI: 10.3847/1538-4357/acc658

Parker Data Used; interplanetary turbulence; Solar wind; Space plasmas; Magnetohydrodynamics; Plasma astrophysics; 830; 1534; 1544; 1964; 1261; Physics - Space Physics; Astrophysics - High Energy Astrophysical Phenomena; Physics - Plasma Physics

On the Evolution of the Anisotropic Scaling of Magnetohydrodynamic Turbulence in the Inner Heliosphere

We analyze a merged Parker Solar Probe (PSP) and Solar Orbiter (SO) data set covering heliocentric distances 13 R $_\ensuremath\odot$ \ensuremath\lesssim R \ensuremath\lesssim 220 R $_\ensuremath\odot$ to investigate the radial evolution of power and spectral index anisotropy in the wavevector space of solar wind turbulence. Our results show that anisotropic signatures of turbulence display a distinct radial evolution when fast, V $_sw$ \ensuremath\geq 400 km s$^-1$, and slow, V $_sw$ \ensuremath\leq 400 km s$^-1$, wind stre ...

Sioulas, Nikos; Velli, Marco; Huang, Zesen; Shi, Chen; Bowen, Trevor; Chandran, B.~D.~G.; Liodis, Ioannis; Davis, Nooshin; Bale, Stuart; Horbury, T.~S.; de Wit, Thierry; Larson, Davin; Stevens, Michael; Kasper, Justin; Owen, Christopher; Case, Anthony; Pulupa, Marc; Malaspina, David; Livi, Roberto; Goetz, Keith; Harvey, Peter; MacDowall, Robert; Bonnell, John;

Published by: \apj Published on: jul

YEAR: 2023 DOI: 10.3847/1538-4357/acc658

Parker Data Used; interplanetary turbulence; Solar wind; Space plasmas; Magnetohydrodynamics; Plasma astrophysics; 830; 1534; 1544; 1964; 1261; Physics - Space Physics; Astrophysics - High Energy Astrophysical Phenomena; Physics - Plasma Physics

The Radial Distribution of Ion-scale Waves in the Inner Heliosphere

Determining the mechanism responsible for plasma heating and particle acceleration is a fundamental problem in the study of the heliosphere. Due to efficient wave-particle interactions of ion- scale waves with charged particles, these waves are widely believed to be a major contributor to ion energization, and their contribution considerably depends on the wave occurrence rate. By analyzing the radial distribution of quasi- monochromatic ion-scale waves observed by the Parker Solar Probe, this work shows that the wave occurr ...

Liu, Wen; Zhao, Jinsong; Wang, Tieyan; Dong, Xiangcheng; Kasper, Justin; Bale, Stuart; Shi, Chen; Wu, Dejin;

Published by: \apj Published on: jul

YEAR: 2023 DOI: 10.3847/1538-4357/acd53b

Parker Data Used; Plasma physics; Space plasmas; Solar wind; 2089; 1544; 1534; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics

Interferometric imaging of the type IIIb and U radio bursts observed with LOFAR on 22 August 2017

Context. The Sun is the source of different types of radio bursts that are associated with solar flares, for example. Among the most frequently observed phenomena are type III solar bursts. Their radio images at low frequencies (below 100 MHz) are relatively poorly studied due to the limitations of legacy radio telescopes. \ Aims: We study the general characteristics of types IIIb and U with stria structure solar radio bursts in the frequency range of 20-80 MHz, in particular the source size and evolution in different altitu ...

Dabrowski, Bartosz; Miku\la, Katarzyna; Flisek, Pawe\l; Vocks, Christian; Zhang, PeiJin; c, Jasmina; Warmuth, Alexander; Morosan, Diana; n, Adam; Fallows, Richard; Bisi, Mario; Krankowski, Andrzej; Mann, Gottfried; B\laszkiewicz, Leszek; Carley, Eoin; Gallagher, Peter; Zucca, Pietro; Rudawy, Pawe\l; Hajduk, Marcin; Kotulak, Kacper; Sidorowicz, Tomasz;

Published by: \aap Published on: jan

YEAR: 2023 DOI: 10.1051/0004-6361/202142905

Parker Data Used; Sun: radio radiation; Sun: UV radiation; Sun: activity; methods: observational; Astrophysics - Solar and Stellar Astrophysics

Interferometric imaging of the type IIIb and U radio bursts observed with LOFAR on 22 August 2017

Context. The Sun is the source of different types of radio bursts that are associated with solar flares, for example. Among the most frequently observed phenomena are type III solar bursts. Their radio images at low frequencies (below 100 MHz) are relatively poorly studied due to the limitations of legacy radio telescopes. \ Aims: We study the general characteristics of types IIIb and U with stria structure solar radio bursts in the frequency range of 20-80 MHz, in particular the source size and evolution in different altitu ...

Dabrowski, Bartosz; Miku\la, Katarzyna; Flisek, Pawe\l; Vocks, Christian; Zhang, PeiJin; c, Jasmina; Warmuth, Alexander; Morosan, Diana; n, Adam; Fallows, Richard; Bisi, Mario; Krankowski, Andrzej; Mann, Gottfried; B\laszkiewicz, Leszek; Carley, Eoin; Gallagher, Peter; Zucca, Pietro; Rudawy, Pawe\l; Hajduk, Marcin; Kotulak, Kacper; Sidorowicz, Tomasz;

Published by: \aap Published on: jan

YEAR: 2023 DOI: 10.1051/0004-6361/202142905

Parker Data Used; Sun: radio radiation; Sun: UV radiation; Sun: activity; methods: observational; Astrophysics - Solar and Stellar Astrophysics

LOFAR Observations of Substructure Within a Traveling Ionospheric Disturbance at Mid-Latitude

The large scale morphology and finer sub-structure within a slowly propagating traveling ionospheric disturbance (TID) are studied using wide band trans-ionospheric radio observations with the LOw Frequency ARray (LOFAR; van Haarlem et al., 2013, https://doi.org/10 .1051/0004-6361/201220873). The observations were made under geomagnetically quiet conditions, between 0400 and 0800 on 7 January 2019, over the UK. In combination with ionograms and Global Navigation Sa ...

Dorrian, Gareth; Fallows, Richard; Wood, Alan; Themens, David; Boyde, Ben; Krankowski, Andrzej; Bisi, Mario; browski, Bartosz; Vocks, Christian;

Published by: Space Weather Published on: jan

YEAR: 2023 DOI: 10.1029/2022SW003198

Parker Data Used; traveling ionospheric disturbance; ionospheric scintillation; LOw frequency ARray

Magnetic Field Spectral Evolution in the Inner Heliosphere

Parker Solar Probe and Solar Orbiter data are used to investigate the radial evolution of magnetic turbulence between 0.06 \ensuremath\lesssim R \ensuremath\lesssim 1 au. The spectrum is studied as a function of scale, normalized to the ion inertial scale d $_ i $. In the vicinity of the Sun, the inertial range is limited to a narrow range of scales and exhibits a power-law exponent of, \ensuremath\alpha $_ B $ = -3/2, independent of plasma parameters. The inertial range grows with distance, progressively extending to larger ...

Sioulas, Nikos; Huang, Zesen; Shi, Chen; Velli, Marco; Tenerani, Anna; Bowen, Trevor; Bale, Stuart; Huang, Jia; Vlahos, Loukas; Woodham, L.~D.; Horbury, T.~S.; de Wit, Thierry; Larson, Davin; Kasper, Justin; Owen, Christopher; Stevens, Michael; Case, Anthony; Pulupa, Marc; Malaspina, David; Bonnell, J.~W.; Livi, Roberto; Goetz, Keith; Harvey, Peter; MacDowall, Robert; c, Milan; Louarn, P.; Fedorov, A.;

Published by: \apjl Published on: jan

YEAR: 2023 DOI: 10.3847/2041-8213/acaeff

Parker Data Used; Solar wind; Magnetohydrodynamics; interplanetary turbulence; Space plasmas; Plasma astrophysics; 1534; 1964; 830; 1544; 1261; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics

Magnetic Field Spectral Evolution in the Inner Heliosphere

Parker Solar Probe and Solar Orbiter data are used to investigate the radial evolution of magnetic turbulence between 0.06 \ensuremath\lesssim R \ensuremath\lesssim 1 au. The spectrum is studied as a function of scale, normalized to the ion inertial scale d $_ i $. In the vicinity of the Sun, the inertial range is limited to a narrow range of scales and exhibits a power-law exponent of, \ensuremath\alpha $_ B $ = -3/2, independent of plasma parameters. The inertial range grows with distance, progressively extending to larger ...

Sioulas, Nikos; Huang, Zesen; Shi, Chen; Velli, Marco; Tenerani, Anna; Bowen, Trevor; Bale, Stuart; Huang, Jia; Vlahos, Loukas; Woodham, L.~D.; Horbury, T.~S.; de Wit, Thierry; Larson, Davin; Kasper, Justin; Owen, Christopher; Stevens, Michael; Case, Anthony; Pulupa, Marc; Malaspina, David; Bonnell, J.~W.; Livi, Roberto; Goetz, Keith; Harvey, Peter; MacDowall, Robert; c, Milan; Louarn, P.; Fedorov, A.;

Published by: \apjl Published on: jan

YEAR: 2023 DOI: 10.3847/2041-8213/acaeff

Parker Data Used; Solar wind; Magnetohydrodynamics; interplanetary turbulence; Space plasmas; Plasma astrophysics; 1534; 1964; 830; 1544; 1261; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics

Magnetic Field Spectral Evolution in the Inner Heliosphere

Parker Solar Probe and Solar Orbiter data are used to investigate the radial evolution of magnetic turbulence between 0.06 \ensuremath\lesssim R \ensuremath\lesssim 1 au. The spectrum is studied as a function of scale, normalized to the ion inertial scale d $_ i $. In the vicinity of the Sun, the inertial range is limited to a narrow range of scales and exhibits a power-law exponent of, \ensuremath\alpha $_ B $ = -3/2, independent of plasma parameters. The inertial range grows with distance, progressively extending to larger ...

Sioulas, Nikos; Huang, Zesen; Shi, Chen; Velli, Marco; Tenerani, Anna; Bowen, Trevor; Bale, Stuart; Huang, Jia; Vlahos, Loukas; Woodham, L.~D.; Horbury, T.~S.; de Wit, Thierry; Larson, Davin; Kasper, Justin; Owen, Christopher; Stevens, Michael; Case, Anthony; Pulupa, Marc; Malaspina, David; Bonnell, J.~W.; Livi, Roberto; Goetz, Keith; Harvey, Peter; MacDowall, Robert; c, Milan; Louarn, P.; Fedorov, A.;

Published by: \apjl Published on: jan

YEAR: 2023 DOI: 10.3847/2041-8213/acaeff

Parker Data Used; Solar wind; Magnetohydrodynamics; interplanetary turbulence; Space plasmas; Plasma astrophysics; 1534; 1964; 830; 1544; 1261; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics

The Radial Variation of the Solar Wind Turbulence Spectra near the Kinetic Break Scale from Parker Solar Probe Measurements

In this study we examine the radial dependence of the inertial and dissipation range indices, as well as the spectral break separating the inertial and dissipation range in power density spectra of interplanetary magnetic field fluctuations using Parker Solar Probe data from the fifth solar encounter between \raisebox-0.5ex\textasciitilde0.1 and \raisebox-0.5ex\textasciitilde0.7 au. The derived break wavenumber compares reasonably well with previous estimates at larger radial distances and is consistent with gyro-resonant da ...

Lotz, S.; Nel, A.~E.; Wicks, R.~T.; Roberts, O.~W.; Engelbrecht, N.~E.; Strauss, R.~D.; Botha, G.~J.~J.; Kontar, E.~P.; Pit\vna, A.; Bale, S.~D.;

Published by: \apj Published on: jan

YEAR: 2023 DOI: 10.3847/1538-4357/aca903

Parker Data Used; Space plasmas; Solar wind; interplanetary turbulence; 1544; 1534; 830; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

Small-scale Magnetic Flux Ropes in Stream Interaction Regions from Parker Solar Probe and Wind Spacecraft Observations

Using in situ measurements from the Parker Solar Probe and Wind spacecraft, we investigate the small-scale magnetic flux ropes (SFRs) and their properties inside stream interaction regions (SIRs). Within SIRs from \raisebox-0.5ex\textasciitilde0.15 to 1 au, SFRs are found to exist in a wide range of solar wind speeds with more frequent occurrences after the stream interface, and the Alfv\ enicity of these structures decreases significantly with increasing heliocentric distances. Furthermore, we examine the variation of five ...

Chen, Yu; Hu, Qiang; Allen, Robert; Jian, Lan;

Published by: \apj Published on: jan

YEAR: 2023 DOI: 10.3847/1538-4357/aca894

Parker Data Used; Solar wind; Fast solar wind; Astronomy data analysis; Solar magnetic reconnection; 1534; 1872; 1858; 1504

The 18-19 March 2022 series of $^3$He-rich events observed by Solar Orbiter at 0.36 au compared with EUV, X-ray, and radio observations

Context. During the first close perihelion pass of Solar Orbiter, a series of impulsive $^3$He-rich solar particle events was observed on 18-19 March 2022 from a distance of 0.36 au. In addition to the energetic particle, radio, and X-ray data from Solar Orbiter, the events were observed in radio and/or extreme ultraviolet by STEREO-A, SDO, Wind, and Parker Solar Probe. \ Aims: Observations of the event series along with remote sensing of flaring and radio emission with only small timing delays due to the close distance allo ...

Mason, G.~M.; Nitta, N.~V.; ik, Bu\vc\; omez-Herrero, R.; Krupar, V.; Krucker, S.; Ho, G.~C.; Allen, R.~C.; Kouloumvakos, A.; Wimmer-Schweingruber, R.~F.; Rodriguez-Pacheco, J.; Vecchio, A.; Maksimovic, M.;

Published by: \aap Published on: jan

YEAR: 2023 DOI: 10.1051/0004-6361/202245576

Parker Data Used; acceleration of particles; Sun: flares; Sun: particle emission; Sun: radio radiation; Sun: UV radiation; Sun: X-rays; gamma rays

Parker Solar Probe: Four Years of Discoveries at Solar Cycle Minimum

Launched on 12 Aug. 2018, NASA s Parker Solar Probe had completed 13 of its scheduled 24 orbits around the Sun by Nov. 2022. The mission s primary science goal is to determine the structure and dynamics of the Sun s coronal magnetic field, understand how the solar corona and wind are heated and accelerated, and determine what processes accelerate energetic particles. Parker Solar Probe returned a treasure trove of science data that far exceeded quality, significance, and quantity expectations, leading to a significant number ...

Raouafi, N.~E.; Matteini, L.; Squire, J.; Badman, S.~T.; Velli, M.; Klein, K.~G.; Chen, C.~H.~K.; Matthaeus, W.~H.; Szabo, A.; Linton, M.; Allen, R.~C.; Szalay, J.~R.; Bruno, R.; Decker, R.~B.; Akhavan-Tafti, M.; Agapitov, O.~V.; Bale, S.~D.; Bandyopadhyay, R.; Battams, K.; Ber\vci\vc, L.; Bourouaine, S.; Bowen, T.~A.; Cattell, C.; Chandran, B.~D.~G.; Chhiber, R.; Cohen, C.~M.~S.; Amicis, R.; Giacalone, J.; Hess, P.; Howard, R.~A.; Horbury, T.~S.; Jagarlamudi, V.~K.; Joyce, C.~J.; Kasper, J.~C.; Kinnison, J.; Laker, R.; Liewer, P.; Malaspina, D.~M.; Mann, I.; McComas, D.~J.; Niembro-Hernandez, T.; Nieves-Chinchilla, T.; Panasenco, O.; y, Pokorn\; Pusack, A.; Pulupa, M.; Perez, J.~C.; Riley, P.; Rouillard, A.~P.; Shi, C.; Stenborg, G.; Tenerani, A.; Verniero, J.~L.; Viall, N.; Vourlidas, A.; Wood, B.~E.; Woodham, L.~D.; Woolley, T.;