PSP Bibliography





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Found 33 entries in the Bibliography.


Showing entries from 1 through 33


2021

Parker solar probe observations of helical structures as boundaries for energetic particles

Energetic particle transport in the interplanetary medium is known to be affected by magnetic structures. It has been demonstrated for solar energetic particles in near-Earth orbit studies, and also for the more energetic cosmic rays. In this paper, we show observational evidence that intensity variations of solar energetic particles can be correlated with the occurrence of helical magnetic flux tubes and their boundaries. The analysis is carried out using data from Parker Solar Probe orbit 5, in the period 2020 May 24 to Ju ...

Pecora, F.; Servidio, S.; Greco, A.; Matthaeus, W.~H.; McComas, D.~J.; Giacalone, J.; Joyce, C.~J.; Getachew, T.; Cohen, C.~M.~S.; Leske, R.~A.; Wiedenbeck, M.~E.; McNutt, R.~L.; Hill, M.~E.; Mitchell, D.~G.; Christian, E.~R.; Roelof, E.~C.; Schwadron, N.~A.; Bale, S.~D.;

Published by: \mnras      Published on: sep

YEAR: 2021     DOI: 10.1093/mnras/stab2659

magnetic fields; plasmas; Sun: magnetic fields; Sun: solar wind; Sun: particle emission; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics; Parker Data Used

Energetic particle evolution during coronal mass ejection passage from 0.3 to 1 AU

We provide analysis of a coronal mass ejection (CME) that passed over Parker Solar Probe (PSP) on January 20, 2020 when the spacecraft was at just 0.32 AU. The Integrated Science Investigation of the Sun instrument suite measures energetic particle populations associated with the CME before, during, and after its passage over the spacecraft. We observe a complex evolution of energetic particles, including a brief \raisebox-0.5ex\textasciitilde2 h period where the energetic particle fluxes are enhanced and the nominal orienta ...

Joyce, C.~J.; McComas, D.~J.; Schwadron, N.~A.; Vourlidas, A.; Christian, E.~R.; McNutt, R.~L.; Cohen, C.~M.~S.; Leske, R.~A.; Mewaldt, R.~A.; Stone, E.~C.; Mitchell, D.~G.; Hill, M.~E.; Roelof, E.~C.; Allen, R.~C.; Szalay, J.~R.; Rankin, J.~S.; Desai, M.~I.; Giacalone, J.; Matthaeus, W.~H.; Niehof, J.~T.; de Wet, W.; Winslow, R.~M.; Bale, S.~D.; Kasper, J.~C.;

Published by: \aap      Published on: jul

YEAR: 2021     DOI: 10.1051/0004-6361/202039933

Parker Data Used; acceleration of particles; Solar wind; magnetic fields

Time evolution of stream interaction region energetic particle spectra in the inner heliosphere

We analyze an energetic proton event associated with a stream interaction region (SIR) that was observed at Parker Solar Probe on day 320 of 2018 when the spacecraft was just 0.34 AU from the Sun. Using the Integrated Science Investigation of the Sun instrument suite, we perform a spectral analysis of the event and show how the observed spectra evolve over the course of the event. We find that the spectra from the first day of the event are much more consistent with local acceleration at a weak compression, while spectra fro ...

Joyce, C.; McComas, D.; Schwadron, N.; Christian, E.; Wiedenbeck, M.; McNutt, R.; Cohen, C.; Leske, R.; Mewaldt, R.; Stone, E.; Labrador, A.; Davis, A.; Cummings, A.; Mitchell, D.; Hill, M.; Roelof, E.; Allen, R.; Szalay, J.; Rankin, J.; Desai, M.; Giacalone, J.; Matthaeus, W.; Bale, S.; Kasper, J.;

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

YEAR: 2021     DOI: 10.1051/0004-6361/202039330

acceleration of particles; Solar wind; magnetic fields; Parker Data Used

Energetic particle behavior in near-Sun magnetic field switchbacks from PSP

Context. The observation of numerous magnetic switchbacks and associated plasma jets in Parker Solar Probe (PSP) during its first five orbits, particularly near the Sun, has attracted considerable attention. Switchbacks have been found to be systematically associated with correlated reversals in the direction of the propagation of Alfvénic fluctuations, as well as similar reversals of the electron strahl.
Aims: Here we aim to see whether the energetic particles change direction at the magnetic field switchbacks.

Bandyopadhyay, R.; Matthaeus, W.; McComas, D.; Joyce, C.; Szalay, J.; Christian, E.; Giacalone, J.; Schwadron, N.; Mitchell, D.; Hill, M.; McNutt, R.; Desai, M.; Bale, S.; Bonnell, J.; de Wit, Dudok; Goetz, K.; Harvey, P.; MacDowall, R.; Malaspina, D.; Pulupa, M.; Kasper, J.; Stevens, M.;

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

YEAR: 2021     DOI: 10.1051/0004-6361/202039800

Solar wind; magnetic fields; plasmas; turbulence; instabilities; waves; Parker Data Used

Parker Solar Probe observations of He/H abundance variations in SEP events inside 0.5 au


Aims: The Parker Solar Probe (PSP) orbit provides an opportunity to study the inner heliosphere at distances closer to the Sun than previously possible. Due to the solar minimum conditions, the initial orbits of PSP yielded only a few solar energetic particle (SEP) events for study. Recently during the fifth orbit, at distances from 0.45 to 0.3 au, the energetic particle suite on PSP, Integrated Science Investigation of the Sun (IS⊙IS), observed a series of six SEP events, adding to the limited number of SEP events ...

Cohen, C.; Christian, E.; Cummings, A.; Davis, A.; Desai, M.; de Nolfo, G.; Giacalone, J.; Hill, M.; Joyce, C.; Labrador, A.; Leske, R.; Matthaeus, W.; McComas, D.; McNutt, R.; Mewaldt, R.; Mitchell, D.; Mitchell, J.; Rankin, J.; Roelof, E.; Schwadron, N.; Stone, E.; Szalay, J.; Wiedenbeck, M.; Vourlidas, A.; Bale, S.; Pulupa, M.; MacDowall, R.;

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

YEAR: 2021     DOI: 10.1051/0004-6361/202039299

Sun: particle emission; Sun: activity; solar-terrestrial relations; Parker Data Used

Radial Evolution of a CIR: Observations From a Nearly Radially Aligned Event Between Parker Solar Probe and STEREO A

The addition of Parker Solar Probe (PSP) to the Heliophysics System Observatory has allowed for the unprecedented ability to study Corotating Interaction Regions (CIRs) at multiple radial distances without significant temporal/longitudinal variations. On September 19, 2019, PSP observed a CIR at ∼0.5 au when it was nearly radially aligned with the Solar Terrestrial Relations Observatory Ahead (STEREO A) spacecraft at ∼1 au, allowing for an unambiguous assessment of the radial evolution of a single CIR. Bulk plasma and ma ...

Allen, R.; Ho, G.; Mason, G.; Li, G.; Jian, L.; Vines, S.; Schwadron, N.; Joyce, C.; Bale, S.; Bonnell, J.; Case, A.; Christian, E.; Cohen, C.; Desai, M.; Filwett, R.; Goetz, K.; Harvey, P.; Hill, M.; Kasper, J.; Korreck, K.; Lario, D.; Larson, D.; Livi, R.; MacDowall, R.; Malaspina, D.; McComas, D.; McNutt, R.; Mitchell, D.; Paulson, K.; Pulupa, M.; Raouafi, N.; Stevens, M.; Whittlesey, P.; Wiedenbeck, M.;

Published by: Geophysical Research Letters      Published on: 02/2021

YEAR: 2021     DOI: 10.1029/2020GL091376

Parker Data Used; CIRs; parker solar probe; Solar wind; STEREO; suprathermal ions

2020

A living catalog of stream interaction regions in the Parker Solar Probe era

Stream interaction regions (SIRs) and corotating interaction regions (CIRs) are important phenomena in heliospheric physics. These large-scale structures vary temporally and spatially, both in latitude and with radial distance. The additions of Parker Solar Probe (PSP) and Solar Orbiter have allowed for investigations into the radial evolution of these structures over a wide range of heliocentric distances for the first time since the Helios era. To better enable investigations of SIRs and CIRs within the inner heliosphere, ...

Allen, R.; Ho, G.; Jian, L.; Vines, S.; Bale, S.; Case, A.; Hill, M.; Joyce, C.; Kasper, J.; Korreck, K.; Malaspina, D.; McComas, D.; McNutt, R.; Möstl, C.; Odstrcil, D.; Raouafi, N.; Schwadron, N.; Stevens, M.;

Published by: Astronomy and Astrophysics      Published on: jun

YEAR: 2020     DOI: "10.1051/0004-6361/202039833"

Parker Data Used; parker solar probe; Solar Probe Plus

Small Electron Events Observed by Parker Solar Probe/IS⊙IS during Encounter 2

The current understanding of the characteristics of\ solar\ and inner heliospheric electron events is inferred almost entirely from observations made by spacecraft located at 1 astronomical unit (au). Previous observations within 1 au of the Sun, by the Helios spacecraft at similar to 0.3-1 au, indicate the presence of electron events that are not detected at 1 au or may have merged during transport from the Sun.\ Parker\ Solar\ Probe\textquoterights close proximity to the Sun at perihelion provid ...

Mitchell, J.; de Nolfo, G.; Hill, M.; Christian, E.; McComas, D.; Schwadron, N.; Wiedenbeck, M.; Bale, S.; Case, A.; Cohen, C.; Joyce, C.; Kasper, J.; Labrador, A.; Leske, R.; MacDowall, R.; Mewaldt, R.; Mitchell, D.; Pulupa, M.; Richardson, I.; Stevens, M.; Szalay, J.;

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

YEAR: 2020     DOI: 10.3847/1538-4357/abb2a4

Parker Data Used; parker solar probe; Radio bursts; Solar energetic particles; solar flares; Solar particle emission; Solar Physics; Solar Probe Plus

Understanding the origins of the heliosphere: integrating observations and measurements from Parker Solar Probe, Solar Orbiter, and other space- and ground-based observatories

Context. The launch of\ Parker\ Solar\ Probe\ (PSP) in 2018, followed by\ Solar\ Orbiter (SO) in February 2020, has opened a new window in the exploration of\ solar\ magnetic activity and the origin of the heliosphere. These missions, together with other space observatories dedicated to\ solar\ observations, such as the\ Solar\ Dynamics Observatory, Hinode, IRIS, STEREO, and SOHO, with complementary in situ observations from WIND and ACE, and ground based multi-w ...

Velli, M.; Harra, L.; Vourlidas, A.; Schwadron, N.; Panasenco, O.; Liewer, P.; Müller, D.; Zouganelis, I.; St Cyr, O.; Gilbert, H.; Nieves-Chinchilla, T.; Auchère, F.; Berghmans, D.; Fludra, A.; Horbury, T.; Howard, R.; Krucker, S.; Maksimovic, M.; Owen, C.; iguez-Pacheco, Rodr\; Romoli, M.; Solanki, S.; Wimmer-Schweingruber, R.; Bale, S.; Kasper, J.; McComas, D.; Raouafi, N.; Martinez-Pillet, V.; Walsh, A.; De Groof, A.; Williams, D.;

Published by: Astronomy \& Astrophysics      Published on: 09/2020

YEAR: 2020     DOI: 10.1051/0004-6361/202038245

Parker Data Used; parker solar probe; Solar Probe Plus; Solar wind; solar-terrestrial relations; Sun: atmosphere; Sun: corona; Sun: heliosphere; Sun: magnetic fields

Analysis of the Helical Kink Stability of Differently Twisted Magnetic Flux Ropes

Magnetic flux ropes (MFRs) are usually considered to be the magnetic structure that dominates the transport of helicity from the Sun into the heliosphere. They entrain a confined plasma within a helically organized magnetic structure and are able to cause geomagnetic activity. The formation, evolution, and twist distribution of MFRs are issues subject to strong debate. Although different twist profiles have been suggested so far, none of them has been thoroughly explored yet. The aim of this work is to present a theoretic ...

Florido-Llinas, M.; Nieves-Chinchilla, T.; Linton, M.;

Published by: Solar Physics      Published on: 09/2020

YEAR: 2020     DOI: 10.1007/s11207-020-01687-z

coronal mass ejections; Flux ropes; Kink instability; magnetic fields; parker solar probe; Solar Probe Plus; Twist distribution

The Streamer Blowout Origin of a Flux Rope and Energetic Particle Event Observed by Parker Solar Probe at 0.5 au

The distribution of spacecraft in the inner heliosphere during 2019 March enabled comprehensive observations of an interplanetary coronal mass ejection (ICME) that encountered Parker Solar Probe (PSP) at 0.547 au from the Sun. This ICME originated as a slow (\~311 km s-1) streamer blowout (SBO) on the Sun as measured by the white-light coronagraphs on board the Solar TErrestrial RElations Observatory-A and the Solar and Heliospheric Observatory. Despite its low initial speed, the passage of the ICME at PSP was ...

Lario, D.; Balmaceda, L.; Alzate, N.; Mays, M.; Richardson, I.; Allen, R.; Florido-Llinas, M.; Nieves-Chinchilla, T.; Koval, A.; Lugaz, N.; Jian, L.; Arge, C.; Macneice, P.; Odstrcil, D.; Morgan, H.; Szabo, A.; Desai, M.; Whittlesey, P.; Stevens, M.; Ho, G.; Luhmann, J.;

Published by: The Astrophysical Journal      Published on: 07/2020

YEAR: 2020     DOI: 10.3847/1538-4357/ab9942

Parker Data Used; parker solar probe; Solar Probe Plus

The Heliospheric Current Sheet and Plasma Sheet during Parker Solar Probe\textquoterights First Orbit

We present heliospheric current sheet (HCS) and plasma sheet (HPS) observations during Parker Solar Probe\textquoterights (PSP) first orbit around the Sun. We focus on the eight intervals that display a true sector boundary (TSB; based on suprathermal electron pitch angle distributions) with one or several associated current sheets. The analysis shows that (1) the main density enhancements in the vicinity of the TSB and HCS are typically associated with electron strahl dropouts, implying magnetic disconnection from the Su ...

Lavraud, B.; Fargette, N.; eville, V.; Szabo, A.; Huang, J.; Rouillard, A.; Viall, N.; Phan, T.; Kasper, J.; Bale, S.; Berthomier, M.; Bonnell, J.; Case, A.; de Wit, Dudok; Eastwood, J.; enot, V.; Goetz, K.; Griton, L.; Halekas, J.; Harvey, P.; Kieokaew, R.; Klein, K.; Korreck, K.; Kouloumvakos, A.; Larson, D.; Lavarra, M.; Livi, R.; Louarn, P.; MacDowall, R.; Maksimovic, M.; Malaspina, D.; Nieves-Chinchilla, T.; Pinto, R.; Poirier, N.; Pulupa, M.; Raouafi, N.; Stevens, M.; Toledo-Redondo, S.; Whittlesey, P.;

Published by: The Astrophysical Journal      Published on: 05/2020

YEAR: 2020     DOI: 10.3847/2041-8213/ab8d2d

Parker Data Used; parker solar probe; Solar Probe Plus

Energetic Particle Increases Associated with Stream Interaction Regions

The Parker Solar Probe was launched on 2018 August 12 and completed its second orbit on 2019 June 19 with perihelion of 35.7 solar radii. During this time, the Energetic Particle Instrument-Hi (EPI-Hi, one of the two energetic particle instruments comprising the Integrated Science Investigation of the Sun, IS☉IS) measured seven proton intensity increases associated with stream interaction regions (SIRs), two of which appear to be occurring in the same region corotating with the Sun. The events are relatively weak, with ...

Cohen, C.; Christian, E.; Cummings, A.; Davis, A.; Desai, M.; Giacalone, J.; Hill, M.; Joyce, C.; Labrador, A.; Leske, R.; Matthaeus, W.; McComas, D.; McNutt, R.; Mewaldt, R.; Mitchell, D.; Rankin, J.; Roelof, E.; Schwadron, N.; Stone, E.; Szalay, J.; Wiedenbeck, M.; Allen, R.; Ho, G.; Jian, L.; Lario, D.; Odstrcil, D.; Bale, S.; Badman, S.; Pulupa, M.; MacDowall, R.; Kasper, J.; Case, A.; Korreck, K.; Larson, D.; Livi, Roberto; Stevens, M.; Whittlesey, Phyllis;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab4c38

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

Energetic Particle Observations from the Parker Solar Probe Using Combined Energy Spectra from the IS⊙IS Instrument Suite

The Integrated Science Investigations of the Sun (IS☉IS) instrument suite includes two Energetic Particle instruments: EPI-Hi, designed to measure ions from ̃1 to 200 MeV nuc-1, and EPI-Lo, designed to measure ions from ̃20 to ̃15 MeV nuc-1. We present an analysis of eight energetic proton events observed across the energy range of both instruments during Parker Solar Probe\textquoterights (PSP) first two orbits in order to examine their combined energy spectra. Background corrections are applie ...

Joyce, C.; McComas, D.; Christian, E.; Schwadron, N.; Wiedenbeck, M.; McNutt, R.; Cohen, C.; Leske, R.; Mewaldt, R.; Stone, E.; Labrador, A.; Davis, A.; Cummings, A.; Mitchell, D.; Hill, M.; Roelof, E.; Szalay, J.; Rankin, J.; Desai, M.; Giacalone, J.; Matthaeus, W.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab5948

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

CME-associated Energetic Ions at 0.23 au: Consideration of the Auroral Pressure Cooker Mechanism Operating in the Low Corona as a Possible Energization Process

Mitchell, D.~G.; Giacalone, J.; Allen, R.~C.; Hill, M.~E.; McNutt, R.~L.; McComas, D.~J.; Szalay, J.~R.; Schwadron, N.~A.; Rouillard, A.~P.; Bale, S.~B.; Chaston, C.~C.; Pulupa, M.~P.; Whittlesey, P.~L.; Kasper, J.~C.; MacDowall, R.~J.; Christian, E.~R.; Wiedenbeck, M.~E.; Matthaeus, W.~H.;

Published by: \apjs      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab63cc

Parker Data Used; 1491; 310; 1496; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics

The Near-Sun Dust Environment: Initial Observations from Parker Solar Probe

The Parker Solar Probe (PSP) spacecraft has flown into the densest, previously unexplored, innermost region of our solar system\textquoterights zodiacal cloud. While PSP does not have a dedicated dust detector, multiple instruments on the spacecraft are sensitive to the effects of meteoroid bombardment. Here, we discuss measurements taken during PSP\textquoterights second orbit and compare them to models of the zodiacal cloud\textquoterights dust distribution. Comparing the radial impact rate trends and the timing and loc ...

Szalay, J.; y, Pokorn\; Bale, S.; Christian, E.; Goetz, K.; Goodrich, K.; Hill, M.; Kuchner, M.; Larsen, R.; Malaspina, D.; McComas, D.; Mitchell, D.; Page, B.; Schwadron, N.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab50c1

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

Observations of Energetic-particle Population Enhancements along Intermittent Structures near the Sun from the Parker Solar Probe

Observations at 1 au have confirmed that enhancements in measured energetic-particle (EP) fluxes are statistically associated with "rough" magnetic fields, i.e., fields with atypically large spatial derivatives or increments, as measured by the Partial Variance of Increments (PVI) method. One way to interpret this observation is as an association of the EPs with trapping or channeling within magnetic flux tubes, possibly near their boundaries. However, it remains unclear whether this association is a transport or local ef ...

Bandyopadhyay, Riddhi; Matthaeus, W.; Parashar, T.; Chhiber, R.; Ruffolo, D.; Goldstein, M.; Maruca, B.; Chasapis, A.; Qudsi, R.; McComas, D.; Christian, E.; Szalay, J.; Joyce, C.; Giacalone, J.; Schwadron, N.; Mitchell, D.; Hill, M.; Wiedenbeck, M.; McNutt, R.; Desai, M.; Bale, Stuart; Bonnell, J.; de Wit, Thierry; Goetz, Keith; Harvey, Peter; MacDowall, Robert; Malaspina, David; Pulupa, Marc; Velli, M.; Kasper, J.; Korreck, K.; Stevens, M.; Case, A.; Raouafi, N.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab6220

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

Observations of the 2019 April 4 Solar Energetic Particle Event at the Parker Solar Probe

A solar energetic particle event was detected by the Integrated Science Investigation of the Sun (IS☉IS) instrument suite on Parker Solar Probe (PSP) on 2019 April 4 when the spacecraft was inside of 0.17 au and less than 1 day before its second perihelion, providing an opportunity to study solar particle acceleration and transport unprecedentedly close to the source. The event was very small, with peak 1 MeV proton intensities of ̃0.3 particles (cm2 sr s MeV)-1, and was undetectable above backgro ...

Leske, R.; Christian, E.; Cohen, C.; Cummings, A.; Davis, A.; Desai, M.; Giacalone, J.; Hill, M.; Joyce, C.; Krimigis, S.; Labrador, A.; Malandraki, O.; Matthaeus, W.; McComas, D.; McNutt, R.; Mewaldt, R.; Mitchell, D.; Posner, A.; Rankin, J.; Roelof, E.; Schwadron, N.; Stone, E.; Szalay, J.; Wiedenbeck, M.; Vourlidas, A.; Bale, S.; MacDowall, R.; Pulupa, M.; Kasper, J.; Allen, R.; Case, A.; Korreck, K.; Livi, R.; Stevens, M.; Whittlesey, P.; Poduval, B.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab5712

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

Properties of Suprathermal-through-energetic He Ions Associated with Stream Interaction Regions Observed over the Parker Solar Probe \textquoterights First Two Orbits

The Integrated Science Investigation of the Sun (IS☉IS) suite on board NASA\textquoterights Parker Solar Probe (PSP) observed six distinct enhancements in the intensities of suprathermal-through-energetic (\~0.03-3 MeV nucleon-1) He ions associated with corotating or stream interaction regions (CIR or SIR) during its first two orbits. Our results from a survey of the time histories of the He intensities, spectral slopes, and anisotropies and the event-averaged energy spectra during these events show the follo ...

Desai, M.; Mitchell, D.; Szalay, J.; Roelof, E.; Giacalone, J.; Hill, M.; McComas, D.; Christian, E.; Schwadron, N.; McNutt, R.; Wiedenbeck, M.; Joyce, C.; Cohen, C.; Ebert, R.; Dayeh, M.; Allen, R.; Davis, A.; Krimigis, S.; Leske, R.; Matthaeus, W.; Malandraki, O.; Mewaldt, R.; Labrador, A.; Stone, E.; Bale, S.; Pulupa, M.; MacDowall, R.; Kasper, J.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab65ef

Parker Data Used; parker solar probe; Solar Probe Plus

Seed Population Preconditioning and Acceleration Observed by the Parker Solar Probe

A series of solar energetic particle (SEP) events was observed by the Integrated Science Investigation of the Sun (IS☉IS) on the Parker Solar Probe (PSP) during the period from 2019 April 18 through 24. The PSP spacecraft was located near 0.48 au from the Sun on Parker spiral field lines that projected out to 1 au within ̃25\textdegree of the near-Earth spacecraft. These SEP events, though small compared to historically large SEP events, were among the largest observed thus far in the PSP mission and provide critical i ...

Schwadron, N.; Bale, S.; Bonnell, J.; Case, A.; Christian, E.; Cohen, C.; Cummings, A.; Davis, A.; de Wit, Dudok; de Wet, W.; Desai, M.; Joyce, C.; Goetz, K.; Giacalone, J.; Gorby, M.; Harvey, P.; Heber, B.; Hill, M.; Karavolos, M.; Kasper, J.; Korreck, K.; Larson, D.; Livi, R.; Leske, R.; Malandraki, O.; MacDowall, R.; Malaspina, D.; Matthaeus, W.; McComas, D.; McNutt, R.; Mewaldt, R.; Mitchell, D.; Mays, L.; Niehof, J.; Odstrcil, D.; Pulupa, M.; Poduval, B.; Rankin, J.; Roelof, E.; Stevens, M.; Stone, E.; Szalay, J.; Wiedenbeck, M.; Winslow, R.; Whittlesey, P.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab5527

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

Small, Low-energy, Dispersive Solar Energetic Particle Events Observed by Parker Solar Probe

The Energetic Particle Instrument-Low Energy (EPI-Lo) experiment has detected several weak, low-energy (̃30-300 keV nucleon-1) solar energetic particle (SEP) events during its first two closest approaches to the Sun, providing a unique opportunity to explore the sources of low-energy particle acceleration. As part of the Parker Solar Probe (PSP) Integrated Science Investigation of the Sun (IS☉IS) suite, EPI-Lo was designed to investigate the physics of energetic particles; however, in the special lowest-ener ...

Hill, M.; Mitchell, D.; Allen, R.; de Nolfo, G.; Vourlidas, A.; Brown, L.; Jones, S.; McComas, D.; McNutt, R.; Mitchell, J.; Szalay, J.; Wallace, S.; Arge, C.; Christian, E.; Cohen, C.; Crew, A.; Desai, M.; Giacalone, J.; Henney, C.; Joyce, C.; Krimigis, S.; Leske, R.; Mewaldt, R.; Nelson, K.; Roelof, E.; Schwadron, N.; Wiedenbeck, M.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab643d

Parker Data Used; parker solar probe; Solar Probe Plus

Solar Energetic Particles Produced by a Slow Coronal Mass Ejection at \~0.25 au

We present an analysis of Parker Solar Probe (PSP) IS☉IS observations of ̃30-300 keV n-1 ions on 2018 November 11 when PSP was about 0.25 au from the Sun. Five hours before the onset of a solar energetic particle (SEP) event, a coronal mass ejection (CME) was observed by STEREO-A/COR2, which crossed PSP about a day later. No shock was observed locally at PSP, but the CME may have driven a weak shock earlier. The SEP event was dispersive, with higher energy ions arriving before the lower energy ones. Timing s ...

Giacalone, J.; Mitchell, D.; Allen, R.; Hill, M.; McNutt, R.; Szalay, J.; Desai, M.; Rouillard, A.; Kouloumvakos, A.; McComas, D.; Christian, E.; Schwadron, N.; Wiedenbeck, M.; Bale, S.; Brown, L.; Case, A.; Chen, X.; Cohen, C.; Joyce, C.; Kasper, J.; Klein, K.; Korreck, K.; Larson, D.; Livi, R.; Leske, R.; MacDowall, R.; Matthaeus, W.; Mewaldt, R.; Nieves-Chinchilla, T.; Pulupa, M.; Roelof, E.; Stevens, M.; Szabo, A.; Whittlesey, P.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab5221

Parker Data Used; parker solar probe; Solar Probe Plus

Solar Energetic Particles Produced by a Slow Coronal Mass Ejection at \~0.25 au

We present an analysis of Parker Solar Probe (PSP) IS☉IS observations of ̃30-300 keV n-1 ions on 2018 November 11 when PSP was about 0.25 au from the Sun. Five hours before the onset of a solar energetic particle (SEP) event, a coronal mass ejection (CME) was observed by STEREO-A/COR2, which crossed PSP about a day later. No shock was observed locally at PSP, but the CME may have driven a weak shock earlier. The SEP event was dispersive, with higher energy ions arriving before the lower energy ones. Timing s ...

Giacalone, J.; Mitchell, D.; Allen, R.; Hill, M.; McNutt, R.; Szalay, J.; Desai, M.; Rouillard, A.; Kouloumvakos, A.; McComas, D.; Christian, E.; Schwadron, N.; Wiedenbeck, M.; Bale, S.; Brown, L.; Case, A.; Chen, X.; Cohen, C.; Joyce, C.; Kasper, J.; Klein, K.; Korreck, K.; Larson, D.; Livi, R.; Leske, R.; MacDowall, R.; Matthaeus, W.; Mewaldt, R.; Nieves-Chinchilla, T.; Pulupa, M.; Roelof, E.; Stevens, M.; Szabo, A.; Whittlesey, P.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab5221

Parker Data Used; parker solar probe; Solar Probe Plus

Solar Wind Streams and Stream Interaction Regions Observed by the Parker Solar Probe with Corresponding Observations at 1 au

Several fast solar wind streams and stream interaction regions (SIRs) were observed by the Parker Solar Probe (PSP) during its first orbit (2018 September-2019 January). During this time, several recurring SIRs were also seen at 1 au at both L1 (Advanced Composition Explorer (ACE) and Wind) and the location of the Solar Terrestrial Relations Observatory-Ahead (STEREO-A). In this paper, we compare four fast streams observed by PSP at different radial distances during its first orbit. For three of these fast stream events, ...

Allen, R.; Lario, D.; Odstrcil, D.; Ho, G.; Jian, L.; Cohen, C.; Badman, S.; Jones, S.; Arge, C.; Mays, M.; Mason, G.; Bale, S.; Bonnell, J.; Case, A.; Christian, E.; de Wit, Dudok; Goetz, K.; Harvey, P.; Henney, C.; Hill, M.; Kasper, J.; Korreck, K.; Larson, D.; Livi, R.; MacDowall, R.; Malaspina, D.; McComas, D.; McNutt, R.; Mitchell, D.; Pulupa, M.; Raouafi, N.; Schwadron, N.; Stevens, M.; Whittlesey, P.; Wiedenbeck, M.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab578f

Parker Data Used; parker solar probe; Solar Probe Plus

Source and Propagation of a Streamer Blowout Coronal Mass Ejection Observed by the Parker Solar Probe

In the first orbit of the Parker Solar Probe (PSP), in situ thermal plasma and magnetic field measurements were collected as close as 35 RSun from the Sun, an environment that had not been previously explored. During the first orbit of PSP, the spacecraft flew through a streamer blowout coronal mass ejection (SBO-CME) on 2018 November 11 at 23:50 UT as it exited the science encounter. The SBO-CME on November 11 was directed away from the Earth and was not visible by L1 or Earth-based telescopes due to this geom ...

Korreck, Kelly; Szabo, Adam; Chinchilla, Teresa; Lavraud, Benoit; Luhmann, Janet; Niembro, Tatiana; Higginson, Aleida; Alzate, Nathalia; Wallace, Samantha; Paulson, Kristoff; Rouillard, Alexis; Kouloumvakos, Athanasios; Poirier, Nicolas; Kasper, Justin; Case, A.; Stevens, Michael; Bale, Stuart; Pulupa, Marc; Whittlesey, Phyllis; Livi, Roberto; Goetz, Keith; Larson, Davin; Malaspina, David; Morgan, Huw; Narock, Ayris; Schwadron, Nathan; Bonnell, John; Harvey, Peter; Wygant, John;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab6ff9

Parker Data Used; parker solar probe; Solar Probe Plus

3 He-rich Solar Energetic Particle Observations at the Parker Solar Probe and near Earth

The Integrated Science Investigation of the Sun (IS☉IS) instrument suite on the Parker Solar Probe (PSP) spacecraft is making in situ observations of energetic ions and electrons closer to the Sun than any previous mission. Using data collected during its first two orbits, which reached perihelion distances of 0.17 au, we have searched for \ 3\ He\ 3He -rich solar energetic particle (SEP) events under very quiet solar minimum conditions. On 2019-110-111 (April 20-21), \ 3\ He\ 3He -rich SEP ...

Wiedenbeck, M.; ik, Bu\v; Mason, G.; Ho, G.; Leske, R.; Cohen, C.; Christian, E.; Cummings, A.; Davis, A.; Desai, M.; Giacalone, J.; Haggerty, D.; Hill, M.; Joyce, C.; Labrador, A.; Malandraki, O.; Matthaeus, W.; McComas, D.; McNutt, R.; Mewaldt, R.; Mitchell, D.; Posner, A.; Rankin, J.; Roelof, E.; Schwadron, N.; Stone, E.; Szalay, J.; Bale, S.; Case, A.; Kasper, J.; Korreck, K.; Larson, D.; MacDowall, R.; Pulupa, M.; Stevens, M.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab5963

Parker Data Used; parker solar probe; Solar Probe Plus

Analysis of the Internal Structure of the Streamer Blowout Observed by the Parker Solar Probe During the First Solar Encounter

In this paper, we present an analysis of the internal structure of a coronal mass ejection (CME) detected by in situ instruments on board the Parker Solar Probe (PSP) spacecraft during its first solar encounter. On 2018 November 11 at 23:53 UT, the FIELDS magnetometer measured an increase in strength of the magnetic field as well as a coherent change in the field direction. The SWEAP instrument simultaneously detected a low proton temperature and signatures of bidirectionality in the electron pitch angle distribution (PAD ...

Nieves-Chinchilla, Teresa; Szabo, Adam; Korreck, Kelly; Alzate, Nathalia; Balmaceda, Laura; Lavraud, Benoit; Paulson, Kristoff; Narock, Ayris; Wallace, Samantha; Jian, Lan; Luhmann, Janet; Morgan, Huw; Higginson, Aleida; Arge, Charles; Bale, Stuart; Case, Anthony; de Wit, Thierry; Giacalone, Joe; Goetz, Keith; Harvey, Peter; Jones-Melosky, Shaela; Kasper, J.; Larson, Davin; Livi, Roberto; McComas, David; MacDowall, Robert; Malaspina, David; Pulupa, Marc; Raouafi, Nour; Schwadron, Nathan; Stevens, Michael; Whittlesey, Phyllis;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab61f5

Parker Data Used; parker solar probe; Solar Probe Plus

2019

Probing the energetic particle environment near the Sun

NASA\textquoterights Parker Solar Probe mission recently plunged through the inner heliosphere of the Sun to its perihelia, about 24 million kilometres from the Sun. Previous studies farther from the Sun (performed mostly at a distance of 1 astronomical unit) indicate that solar energetic particles are accelerated from a few kiloelectronvolts up to near-relativistic energies via at least two processes: "impulsive" events, which are usually associated with magnetic reconnection in solar flares and are typically enriched in ...

McComas, D.; Christian, E.; Cohen, C.; Cummings, A.; Davis, A.; Desai, M.; Giacalone, J.; Hill, M.; Joyce, C.; Krimigis, S.; Labrador, A.; Leske, R.; Malandraki, O.; Matthaeus, W.; McNutt, R.; Mewaldt, R.; Mitchell, D.; Posner, A.; Rankin, J.; Roelof, E.; Schwadron, N.; Stone, E.; Szalay, J.; Wiedenbeck, M.; Bale, S.; Kasper, J.; Case, A.; Korreck, K.; MacDowall, R.; Pulupa, M.; Stevens, M.; Rouillard, A.;

Published by: Nature      Published on: 12/2019

YEAR: 2019     DOI: 10.1038/s41586-019-1811-1

Parker Data Used; parker solar probe; Solar Probe Plus

Evolution of Coronal Mass Ejection Properties in the Inner Heliosphere: Prediction for the Solar Orbiter and Parker Solar Probe

The evolution of the magnetic field and plasma quantities inside a coronal mass ejection (CME) with distance are known from statistical studies using data from 1 au monitors, planetary missions, Helios, and Ulysses. This does not cover the innermost heliosphere, below 0.29 au, where no data are yet publicly available. Here, we describe the evolution of the properties of simulated CMEs in the inner heliosphere using two different initiation mechanisms. We compare the radial evolution of these properties with that found fro ...

Al-Haddad, Nada; Lugaz, No\; Poedts, Stefaan; Farrugia, Charles; Nieves-Chinchilla, Teresa; Roussev, Ilia;

Published by: The Astrophysical Journal      Published on: 10/2019

YEAR: 2019     DOI: 10.3847/1538-4357/ab4126

Astrophysics - Solar and Stellar Astrophysics; Ejecta; interplanetary magnetic fields; Interplanetary physics; parker solar probe; Solar coronal mass ejections; Solar Probe Plus

Dynamic Evolution of Current Sheets, Ideal Tearing, Plasmoid Formation and Generalized Fractal Reconnection Scaling Relations

Singh, K.~A.~P.; Pucci, Fulvia; Tenerani, Anna; Shibata, Kazunari; Hillier, Andrew; Velli, Marco;

Published by: \apj      Published on: 08/2019

YEAR: 2019     DOI: 10.3847/1538-4357/ab2b99

Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; plasmas; Physics - Plasma Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

2017

The Mushroom: A half-sky energetic ion and electron detector

We present a time-of-flight mass spectrometer design for the measurement of ions in the 30 keV to 10 MeV range for protons (up to 40 MeV and 150 MeV for He and heavy ions, respectively) and 30 keV to 1 MeV range for electrons, covering half of the sky with 80 apertures. The instrument, known as the "Mushroom," owing to its shape, solves the field of view problem for magnetospheric and heliospheric missions that employ three-axis stabilized spacecraft, yet still require extended angular coverage; the Mushroom is also compa ...

Hill, M.; Mitchell, D.; Andrews, G.; Cooper, S.; Gurnee, R.; Hayes, J.; Layman, R.; McNutt, R.; Nelson, K.; Parker, C.; Schlemm, C.; Stokes, M.; Begley, S.; Boyle, M.; Burgum, J.; Do, D.; Dupont, A.; Gold, R.; Haggerty, D.; Hoffer, E.; Hutcheson, J.; Jaskulek, S.; Krimigis, S.; Liang, S.; London, S.; Noble, M.; Roelof, E.; Seifert, H.; Strohbehn, K.; Vandegriff, J.; Westlake, J.;

Published by: Journal of Geophysical Research: Space Physics      Published on: 02/2017

YEAR: 2017     DOI: 10.1002/2016JA022614

2 pi steradian; anisotropy; mass composition; microchannel plate; parker solar probe; Solar Probe Plus; solid-state detector; time of flight

2014

Integrated Science Investigation of the Sun (ISIS): Design of the Energetic Particle Investigation

The Integrated Science Investigation of the Sun (ISIS) is a complete science investigation on the Solar Probe Plus (SPP) mission, which flies to within nine solar radii of the Sun\textquoterights surface. ISIS comprises a two-instrument suite to measure energetic particles over a very broad energy range, as well as coordinated management, science operations, data processing, and scientific analysis. Together, ISIS observations allow us to explore the mechanisms of energetic particles dynamics, including their: (1)\ O ...

McComas, D.; Alexander, N.; Angold, N.; Bale, S.; Beebe, C.; Birdwell, B.; Boyle, M.; Burgum, J.; Burnham, J.; Christian, E.; Cook, W.; Cooper, S.; Cummings, A.; Davis, A.; Desai, M.; Dickinson, J.; Dirks, G.; Do, D.; Fox, N.; Giacalone, J.; Gold, R.; Gurnee, R.; Hayes, J.; Hill, M.; Kasper, J.; Kecman, B.; Klemic, J.; Krimigis, S.; Labrador, A.; Layman, R.; Leske, R.; Livi, S.; Matthaeus, W.; McNutt, R.; Mewaldt, R.; Mitchell, D.; Nelson, K.; Parker, C.; Rankin, J.; Roelof, E.; Schwadron, N.; Seifert, H.; Shuman, S.; Stokes, M.; Stone, E.; Vandegriff, J.; Velli, M.; von Rosenvinge, T.; Weidner, S.; Wiedenbeck, M.; Wilson, P.;

Published by: Space Science Reviews      Published on: 07/2014

YEAR: 2014     DOI: 10.1007/s11214-014-0059-1

CMEs; Corona; ISIS; Parker Data Used; Particle acceleration; SEPs; Solar energetic particles; Solar Probe Plus

2013

Solar Probe Plus mission overview

Solar Probe Plus will be the first mission to pass into the solar corona to study how the corona is heated and the solar wind is accelerated. Solving these two fundamental mysteries has been a top-priority science goal for over five decades. The Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, is managing the mission for NASA s Living with a Star Program, including the development, build, and operation of the spacecraft. SPP will launch in 2018, performing 24 orbits of the Sun over a 7-year duration. ...

Reynolds, Edward; Driesman, Andrew; Kinnison, James; Lockwood, Mary; Hill, Patrick;

Published by: AIAA Guidance, Navigation, and Control (GNC) Conference      Published on:

YEAR: 2013     DOI:

Carbon; Foams; Heat shielding; Interplanetary flight; NASA; Probes; Solar cell arrays; Solar energy; Spacecraft; Temperature; Thermal insulating materials; Parker Engineering



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