PSP Bibliography





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Found 20 entries in the Bibliography.


Showing entries from 1 through 20


2023

Proton and Electron Temperatures in the Solar Wind and Their Correlations with the Solar Wind Speed

The heating and acceleration of the solar wind remains one of the unsolved fundamental problems in heliophysics. It is usually observed that the proton temperature T $_ i $ is highly correlated with the solar wind speed V $_SW$, while the electron temperature T $_ e $ shows anticorrelation or no clear correlation with the solar wind speed. Here, we inspect both Parker Solar Probe (PSP) and WIND data, and compare the observations with simulation results. PSP observations below 30 solar radii clearly show a positive correlatio ...

Shi, Chen; Velli, Marco; Lionello, Roberto; Sioulas, Nikos; Huang, Zesen; Halekas, Jasper; Tenerani, Anna; eville, Victor; Dakeyo, Jean-Baptiste; c, Milan; Bale, Stuart;

Published by: \apj      Published on: feb

YEAR: 2023     DOI: 10.3847/1538-4357/acb341

Parker Data Used; Solar wind; Alfven waves; Solar coronal heating; 1534; 23; 1989; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics

2022

Langmuir-Slow Extraordinary Mode Magnetic Signature Observations with Parker Solar Probe

Radio emission from interplanetary shocks, planetary foreshocks, and some solar flares occurs in the so-called plasma emission framework. The generally accepted scenario begins with electrostatic Langmuir waves that are driven by a suprathermal electron beam on the Landau resonance. These Langmuir waves then mode-convert to freely propagating electromagnetic emissions at the local plasma frequency f $_ pe $ and/or its harmonic 2f $_ pe $. However, the details of the physics of mode conversion are unclear, and so far the ...

Larosa, A.; de Wit, Dudok; Krasnoselskikh, V.; Bale, S.~D.; Agapitov, O.; Bonnell, J.; Froment, C.; Goetz, K.; Harvey, P.; Halekas, J.; Kretzschmar, M.; MacDowall, R.; Malaspina, David; Moncuquet, M.; Niehof, J.; Pulupa, M.; Revillet, C.;

Published by: \apj      Published on: mar

YEAR: 2022     DOI: 10.3847/1538-4357/ac4e85

Parker Data Used; Solar wind; Plasma physics; Space plasmas; 1534; 2089; 1544

Erratum: The Role of Alfv\ en Wave Dynamics on the Large-scale Properties of the Solar Wind: Comparing an MHD Simulation with Parker Solar Probe E1 data (2020, ApJS, 246, 24)

eville, Victor; Velli, Marco; Panasenco, Olga; Tenerani, Anna; Shi, Chen; Badman, Samuel; Bale, Stuart; Kasper, J.~C.; Stevens, Michael; Korreck, Kelly; Bonnell, J.~W.; Case, Anthony; de Wit, Thierry; Goetz, Keith; Harvey, Peter; Larson, Davin; Livi, Roberto; Malaspina, David; MacDowall, Robert; Pulupa, Marc; Whittlesey, Phyllis;

Published by: \apjs      Published on: mar

YEAR: 2022     DOI: 10.3847/1538-4365/ac532e

Parker Data Used

The preferential orientation of magnetic switchbacks and its implications for solar magnetic flux transport

Context. Magnetic switchbacks in the solar wind are large deflections of the magnetic field vector, which often reverse their radial component, and are associated with a velocity spike consistent with their Alfv\ enic nature. The Parker Solar Probe (PSP) mission revealed them to be a dominant feature of the near-Sun solar wind. Where and how they are formed remains unclear and subject to discussion. \ Aims: We investigate the orientation of the magnetic field deflections in switchbacks to determine if they are characterized ...

Fargette, Na; Lavraud, Benoit; Rouillard, Alexis; eville, Victor; Bale, Stuart; Kasper, Justin;

Published by: \aap      Published on: jul

YEAR: 2022     DOI: 10.1051/0004-6361/202243537

Parker Data Used; Solar wind; Sun: magnetic fields; Sun: corona; Sun: photosphere; methods: data analysis; methods: statistical; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

Acceleration of polytropic solar wind: Parker Solar Probe observation and one-dimensional model

The acceleration of the solar coronal plasma to supersonic speeds is one of the most fundamental yet unresolved problems in heliophysics. Despite the success of Parker s pioneering theory on an isothermal solar corona, the realistic solar wind is observed to be non-isothermal, and the decay of its temperature with radial distance usually can be fitted to a polytropic model. In this work, we use Parker Solar Probe data from the first nine encounters to estimate the polytropic index of solar wind protons. The estimated polytro ...

Shi, Chen; Velli, Marco; Bale, Stuart; eville, Victor; c, Milan; Dakeyo, Jean-Baptiste;

Published by: Physics of Plasmas      Published on: dec

YEAR: 2022     DOI: 10.1063/5.0124703

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

First Results From the SCM Search-Coil Magnetometer on Parker Solar Probe

Parker Solar Probe is the first mission to probe in situ the innermost heliosphere, revealing an exceptionally dynamic and structured outer solar corona. Its payload includes a search-coil magnetometer (SCM) that measures up to three components of the fluctuating magnetic field between 3 Hz and 1 MHz. After more than 3 years of operation, the SCM has revealed a multitude of different wave phenomena in the solar wind. Here we present an overview of some of the discoveries made so far. These include oblique and sunward propaga ...

de Wit, Dudok; Krasnoselskikh, V.~V.; Agapitov, O.; Froment, C.; Larosa, A.; Bale, S.~D.; Bowen, T.; Goetz, K.; Harvey, P.; Jannet, G.; Kretzschmar, M.; MacDowall, R.~J.; Malaspina, D.; Martin, P.; Page, B.; Pulupa, M.; Revillet, C.;

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

YEAR: 2022     DOI: 10.1029/2021JA030018

Parker Data Used; Solar wind; magnetic field; search-coil; plasma waves

Validation of a Wave Heated 3D MHD Coronal-wind Model using Polarized Brightness and EUV Observations

The physical properties responsible for the formation and evolution of the corona and heliosphere are still not completely understood. 3D MHD global modeling is a powerful tool to investigate all the possible candidate processes. To fully understand the role of each of them, we need a validation process where the output from the simulations is quantitatively compared to the observational data. In this work, we present the results from our validation process applied to the wave turbulence driven 3D MHD corona-wind model WindP ...

Parenti, Susanna; eville, Victor; Brun, Allan; Pinto, Rui; Auchère, Fr\; Buchlin, Eric; Perri, Barbara; Strugarek, Antoine;

Published by: \apj      Published on: apr

YEAR: 2022     DOI: 10.3847/1538-4357/ac56da

Parker Data Used; Magnetohydrodynamical simulations; Solar Physics; Solar coronal heating; Solar coronal streamers; Solar corona; Solar extreme ultraviolet emission; Solar radiation; Solar atmosphere; 1966; 1476; 1989; 1486; 1483; 1493; 1521; 1477; Astrophysics - Solar and Stellar Astrophysics

2021

Characteristic Scales of Magnetic Switchback Patches Near the Sun and Their Possible Association With Solar Supergranulation and Granulation

Parker Solar Probe (PSP) data recorded within a heliocentric radial distance of 0.3 au have revealed a magnetic field dominated by Alfv\ enic structures that undergo large local variations or even reversals of the radial magnetic field. They are called magnetic switchbacks, they are consistent with folds in magnetic field lines within a same magnetic sector and are associated with velocity spikes during an otherwise calmer background. They are thought to originate either in the low solar atmosphere through magnetic reconnect ...

Fargette, Na; Lavraud, Benoit; Rouillard, Alexis; eville, Victor; de Wit, Thierry; Froment, Clara; Halekas, Jasper; Phan, Tai; Malaspina, David; Bale, Stuart; Kasper, Justin; Louarn, Philippe; Case, Anthony; Korreck, Kelly; Larson, Davin; Pulupa, Marc; Stevens, Michael; Whittlesey, Phyllis; Berthomier, Matthieu;

Published by: \apj      Published on: oct

YEAR: 2021     DOI: 10.3847/1538-4357/ac1112

Solar wind; Solar Physics; Wavelet analysis; Supergranulation; Solar granulation; Solar magnetic fields; 1534; 1476; 1918; 1662; 1498; 1503; Astrophysics - Solar and Stellar Astrophysics; Parker Data Used

Exploiting white-light observations to improve estimates of magnetic connectivity

The \emph\Solar Orbiter\ (\emph\SolO\) and \emph\Parker Solar Probe\ (\emph\PSP\) missions have opened up new challenges for the heliospheric scientific community. Their proximity to the Sun and their high quality measurements allow us to investigate, for the first time, potential sources for the solar wind plasma measured in situ. More accurate estimates of magnetic connectivities from spacecraft to the Sun are required to support science and operations for these missions. We present a methodology to systematically compare ...

Poirier, Nicolas; Rouillard, Alexis; Kouloumvakos, Athanasios; Przybylak, Alexis; Fargette, Na; Pobeda, Rapha; eville, Victor; Pinto, Rui; Indurain, Mikel; Alexandre, Matthieu;

Published by: Frontiers in Astronomy and Space Sciences      Published on: may

YEAR: 2021     DOI: 10.3389/fspas.2021.684734

White-Light Imagery; modeling; space weather; Sun: slow solar wind; Sun: magnetic fields; Sun: coronal streamers

Alfvenic versus non-Alfvenic turbulence in the inner heliosphere as observed by Parker Solar Probe

Context. Parker Solar Probe (PSP) measures the magnetic field and plasma parameters of the solar wind at unprecedentedly close distances to the Sun. These data provide great opportunities to study the early-stage evolution of magnetohydrodynamic (MHD) turbulence in the solar wind.
Aims: In this study, we make use of the PSP data to explore the nature of solar wind turbulence focusing on the Alfvénic character and power spectra of the fluctuations and their dependence on the distance and context (i.e., large-scale sol ...

Shi, C.; Velli, M.; Panasenco, O.; Tenerani, A.; eville, V.; Bale, S.; Kasper, J.; Korreck, K.; Bonnell, J.; de Wit, Dudok; Goetz, K.; Harvey, P.; MacDowall, R.; Pulupa, M.; Case, A.; Larson, D.; Verniero, J.; Livi, R.; Stevens, M.; al., et;

Published by: Astronomy and Astrophysics      Published on: 06/2021

YEAR: 2021     DOI: "10.1051/0004-6361/202039818"

Parker Data Used; parker solar probe; Solar Probe Plus

Direct evidence for magnetic reconnection at the boundaries of magnetic switchbacks with Parker Solar Probe

Context. The first encounters of Parker Solar Probe (PSP) with the Sun revealed the presence of ubiquitous localised magnetic deflections in the inner heliosphere; these structures, often called switchbacks, are particularly striking in solar wind streams originating from coronal holes.
Aims: We report the direct piece of evidence for magnetic reconnection occurring at the boundaries of three switchbacks crossed by PSP at a distance of 45 to 48 solar radii to the Sun during its first encounter.
Methods: We anal ...

Froment, C.; Krasnoselskikh, V.; de Wit, Dudok; Agapitov, O.; Fargette, N.; Lavraud, B.; Larosa, A.; Kretzschmar, M.; Jagarlamudi, V.; Velli, M.; Malaspina, D.; Whittlesey, P.; Bale, S.; Case, A.; Goetz, K.; Kasper, J.; Korreck, K.; Larson, D.; MacDowall, R.; Mozer, F.; Pulupa, M.; Revillet, C.; Stevens, M.;

Published by: Astronomy and Astrophysics      Published on: 06/2021

YEAR: 2021     DOI: 10.1051/0004-6361/202039806

Sun: heliosphere; Solar wind; magnetic fields; magnetic reconnection; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics; Parker Data Used

Switchbacks: statistical properties and deviations from Alfvénicity

Context. Parker Solar Probe s first solar encounter has revealed the presence of sudden magnetic field deflections in the slow Alfvénic solar wind. These structures, which are often called switchbacks, are associated with proton velocity enhancements.
Aims: We study their statistical properties with a special focus on their boundaries.
Methods: Using data from SWEAP and FIELDS, we investigate particle and wavefield properties. The magnetic boundaries are analyzed with the minimum variance technique.
Res ...

Larosa, A.; Krasnoselskikh, V.; de Wit, Dudok; Agapitov, O.; Froment, C.; Jagarlamudi, V.; Velli, M.; Bale, S.; Case, A.; Goetz, K.; Harvey, P.; Kasper, J.; Korreck, K.; Larson, D.; MacDowall, R.; Malaspina, D.; Pulupa, M.; Revillet, C.; Stevens, M.;

Published by: Astronomy and Astrophysics      Published on: 06/2021

YEAR: 2021     DOI: 10.1051/0004-6361/202039442

Solar wind; magnetic fields; waves; magnetohydrodynamics (MHD); Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics; Parker Data Used

Measurement of Magnetic Field Fluctuations in the Parker Solar Probe and Solar Orbiter Missions

The search coil magnetometer (SCM) measures the magnetic signature of solar wind fluctuations with three components in the 3 Hz-50 kHz range and one single component in the 1 kHz-1 MHz range. This instrument is important for providing in situ observations of transients caused by interplanetary shocks and reconnection, for the identification of electromagnetic wave modes in plasmas and the determination of their characteristics (planarity, polarization, ellipticity, and k vector) and for studying the turbulent cascade in the ...

Jannet, G.; de Wit, Dudok; Krasnoselskikh, V.; Kretzschmar, M.; Fergeau, P.; Bergerard-Timofeeva, M.; Agrapart, C.; Brochot, J; Chalumeau, G.; Martin, P.; Revillet, C.; Bale, S.; Maksimovic, M.; Bowen, T.; Brysbaert, C.; Goetz, K.; Guilhem, E.; Harvey, P.; Leray, V.; Lorfèvre, E.;

Published by: Journal of Geophysical Research (Space Physics)      Published on: 02/2021

YEAR: 2021     DOI: 10.1029/2020JA028543

Parker Data Used; magnetometer; parker solar probe; search coil; Solar Orbiter

2020

The Solar Wind Angular Momentum Flux as Observed by Parker Solar Probe

he long-term evolution of the Sun\textquoterights rotation period cannot be directly observed, and is instead inferred from trends in the measured rotation periods of other Sun-like stars. Assuming the Sun spins down as it ages, following rotation rate proportional to age(-1/2), requires the current\ solar\ angular momentum (AM) loss rate to be around 6 x 10(30)erg. Magnetohydrodynamic models, and previous observations of the\ solar\ wind (from the Helios and Wind spacecraft), generally predict a value ...

Finley, Adam; Matt, Sean; eville, Victor; Pinto, Rui; Owens, Mathew; Kasper, Justin; Korreck, Kelly; Case, A.; Stevens, Michael; Whittlesey, Phyllis; Larson, Davin; Livi, Roberto;

Published by: The Astrophysical Journal      Published on: 10/2020

YEAR: 2020     DOI: 10.3847/2041-8213/abb9a5

Parker Data Used; parker solar probe; Solar evolution; Solar Physics; Solar Probe Plus; Solar rotation; Solar wind; Stellar evolution; Stellar physics; Stellar rotation

A Merged Search-Coil and Fluxgate Magnetometer Data Product for Parker Solar Probe FIELDS

NASA\textquoterights Parker Solar Probe (PSP) mission is currently investigating the local plasma environment of the inner heliosphere (\<0.25 R) using both in situ and remote sensing instrumentation. Connecting signatures of microphysical particle heating and acceleration processes to macroscale heliospheric structure requires sensitive measurements of electromagnetic fields over a large range of physical scales. The FIELDS instrument, which provides PSP with in situ measurements of electromagnetic field ...

Bowen, T.; Bale, S.; Bonnell, J.; de Wit, Dudok; Goetz, K.; Goodrich, K.; Gruesbeck, J.; Harvey, P.; Jannet, G.; Koval, A.; MacDowall, R.; Malaspina, D.; Pulupa, M.; Revillet, C.; Sheppard, D.; Szabo, A.;

Published by: Journal of Geophysical Research: Space Physics      Published on: 05/2020

YEAR: 2020     DOI: 10.1029/2020JA027813

Astrophysics - Instrumentation and Methods for Astrophysics; Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Instrumentation and Detectors; Physics - Space Physics; Solar Probe Plus

Localized Magnetic-field Structures and Their Boundaries in the Near-Sun Solar Wind from Parker Solar Probe Measurements

One of the discoveries of the Parker Solar Probe during its first encounters with the Sun is ubiquitous presence of relatively small-scale structures standing out as sudden deflections of the magnetic field. They were named "switchbacks" since some of them show a full reversal of the radial component of the magnetic field and then return to "regular" conditions. We carried out an analysis of three typical switchback structures having different characteristics: I. Alfv\ enic structure, where the variations of the magnetic ...

Krasnoselskikh, V.; Larosa, A.; Agapitov, O.; de Wit, Dudok; Moncuquet, M.; Mozer, F.; Stevens, M.; Bale, S.; Bonnell, J.; Froment, C.; Goetz, K.; Goodrich, K.; Harvey, P.; Kasper, J.; MacDowall, R.; Malaspina, D.; Pulupa, M.; Raouafi, N.; Revillet, C.; Velli, M.; Wygant, J.;

Published by: The Astrophysical Journal      Published on: 04/2020

YEAR: 2020     DOI: 10.3847/1538-4357/ab7f2d

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Space Physics; Solar Probe Plus

Sunward-propagating Whistler Waves Collocated with Localized Magnetic Field Holes in the Solar Wind: Parker Solar Probe Observations at 35.7 R Radii

Observations by the Parker Solar Probe mission of the solar wind at \~35.7 solar radii reveal the existence of whistler wave packets with frequencies below 0.1 fce (20-80 Hz in the spacecraft frame). These waves often coincide with local minima of the magnetic field magnitude or with sudden deflections of the magnetic field that are called switchbacks. Their sunward propagation leads to a significant Doppler frequency downshift from 200-300 to 20-80 Hz (from 0.2 to 0.5 fce). The polarization of these ...

Agapitov, O.; de Wit, Dudok; Mozer, F.; Bonnell, J.; Drake, J.; Malaspina, D.; Krasnoselskikh, V.; Bale, S.; Whittlesey, P.; Case, A.; Chaston, C.; Froment, C.; Goetz, K.; Goodrich, K.; Harvey, P.; Kasper, J.; Korreck, K.; Larson, D.; Livi, R.; MacDowall, R.; Pulupa, M.; Revillet, C.; Stevens, M.; Wygant, J.;

Published by: The Astrophysical Journal      Published on: 03/2020

YEAR: 2020     DOI: 10.3847/2041-8213/ab799c

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Space Physics; Solar Probe Plus

Magnetic Connectivity of the Ecliptic Plane within 0.5 au: Potential Field Source Surface Modeling of the First Parker Solar Probe Encounter

We compare magnetic field measurements taken by the FIELDS instrument on board Parker Solar Probe (PSP) during its first solar encounter to predictions obtained by potential field source surface (PFSS) modeling. Ballistic propagation is used to connect the spacecraft to the source surface. Despite the simplicity of the model, our results show striking agreement with PSP\textquoterights first observations of the heliospheric magnetic field from ̃0.5 au (107.5 R) down to 0.16 au (35.7 R). Furthe ...

Badman, Samuel; Bale, Stuart; Oliveros, Juan; Panasenco, Olga; Velli, Marco; Stansby, David; Buitrago-Casas, Juan; eville, Victor; Bonnell, John; Case, Anthony; de Wit, Thierry; Goetz, Keith; Harvey, Peter; Kasper, Justin; Korreck, Kelly; Larson, Davin; Livi, Roberto; MacDowall, Robert; Malaspina, David; Pulupa, Marc; Stevens, Michael; Whittlesey, Phyllis;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab4da7

Parker Data Used; parker solar probe; Solar Probe Plus

Magnetic Field Kinks and Folds in the Solar Wind

Parker Solar Probe (PSP) observations during its first encounter at 35.7 R have shown the presence of magnetic field lines that are strongly perturbed to the point that they produce local inversions of the radial magnetic field, known as switchbacks. Their counterparts in the solar wind velocity field are local enhancements in the radial speed, or jets, displaying (in all components) the velocity-magnetic field correlation typical of large amplitude Alfv\ en waves propagating away from the Sun. Switchbacks a ...

Tenerani, Anna; Velli, Marco; Matteini, Lorenzo; eville, Victor; Shi, Chen; Bale, Stuart; Kasper, Justin; Bonnell, John; Case, Anthony; de Wit, Thierry; Goetz, Keith; Harvey, Peter; Klein, Kristopher; Korreck, Kelly; Larson, Davin; Livi, Roberto; MacDowall, Robert; Malaspina, David; Pulupa, Marc; Stevens, Michael; Whittlesey, Phyllis;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab53e1

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Space Physics; Solar Probe Plus

Relating Streamer Flows to Density and Magnetic Structures at the Parker Solar Probe

The physical mechanisms that produce the slow solar wind are still highly debated. Parker Solar Probe\textquoterights (PSP\textquoterights) second solar encounter provided a new opportunity to relate in situ measurements of the nascent slow solar wind with white-light images of streamer flows. We exploit data taken by the Solar and Heliospheric Observatory, the Solar TErrestrial RElations Observatory (STEREO), and the Wide Imager on Solar Probe to reveal for the first time a close link between imaged streamer flows and th ...

Rouillard, Alexis; Kouloumvakos, Athanasios; Vourlidas, Angelos; Kasper, Justin; Bale, Stuart; Raouafi, Nour-Edine; Lavraud, Benoit; Howard, Russell; Stenborg, Guillermo; Stevens, Michael; Poirier, Nicolas; Davies, Jackie; Hess, Phillip; Higginson, Aleida; Lavarra, Michael; Viall, Nicholeen; Korreck, Kelly; Pinto, Rui; Griton, Lea; eville, Victor; Louarn, Philippe; Wu, Yihong; Dalmasse, K\; enot, Vincent; Case, Anthony; Whittlesey, Phyllis; Larson, Davin; Halekas, Jasper; Livi, Roberto; Goetz, Keith; Harvey, Peter; MacDowall, Robert; Malaspina, D.; Pulupa, M.; Bonnell, J.; de Witt, Dudok; Penou, Emmanuel;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab579a

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Solar Probe Plus



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