PSP Bibliography





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Found 95 entries in the Bibliography.


Showing entries from 1 through 50


2021

The Encounter of the Parker Solar Probe and a Comet-like Object Near the Sun: Model Predictions and Measurements

The Parker Solar Probe (PSP) aims to explore the nascent solar wind close to the Sun. Meanwhile, PSP is also expected to encounter small objects like comets and asteroids. In this work, we survey the ephemerides to find the chance of a recent encounter and then model the interaction between released dusty plasmas and solar wind plasmas. On 2019 September 2, a comet-like object, the 322P/Solar and Heliosphere Observatory, just passed its perihelion flying to a heliocentric distance of 0.12 au and swept by PSP at a relative di ...

He, Jiansen; Cui, Bo; Yang, Liping; Hou, Chuanpeng; Zhang, Lei; Ip, Wing-Huen; Jia, Ying-Dong; Dong, Chuanfei; Duan, Die; Zong, Qiugang; Bale, Stuart; Pulupa, Marc; Bonnell, John; de Wit, Thierry; Goetz, Keith; Harvey, Peter; MacDowall, Robert; Malaspina, David;

Published by: The Astrophysical Journal      Published on: 03/2021

YEAR: 2021     DOI: 10.3847/1538-4357/abdf4a

Parker Data Used; Solar wind; Comet tails; Interplanetary dust; Asteroids; 1534; 274; 821; 72; Astrophysics - Earth and Planetary Astrophysics; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

Execution of Parker Solar Probe s unprecedented flight to the Sun and early results

Guo, Yanping; Thompson, Paul; Wirzburger, John; Pinkine, Nick; Bushman, Stewart; Goodson, Troy; Haw, Rob; Hudson, James; Jones, Drew; Kijewski, Seth; Lathrop, Brian; Lau, Eunice; Mottinger, Neil; Ryne, Mark; Shyong, Wen-Jong; Valerino, Powtawche; Whittenburg, Karl;

Published by: Acta Astronautica      Published on: 02/2021

YEAR: 2021     DOI: 10.1016/j.actaastro.2020.11.007

Parker Data Used; parker solar probe; V$^7$GA trajectory; Spaceflight; Mission design; Navigation; Trajectory maneuver; parker solar probe

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

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.; . Y. 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

Kinetic-Scale Turbulence in the Venusian Magnetosheath

Bowen, T.~A.; Bale, S.~D.; Bandyopadhyay, R.; Bonnell, J.~W.; Case, A.; Chasapis, A.; Chen, C.~H.~K.; Curry, S.; de Wit, Dudok; Goetz, K.; Goodrich, K.; Gruesbeck, J.; Halekas, J.; Harvey, P.~R.; Howes, G.~G.; Kasper, J.~C.; Korreck, K.; Larson, D.; Livi, R.; MacDowall, R.~J.; Malaspina, D.~M.; Mallet, A.; McManus, M.~D.; Page, B.; Pulupa, M.; Raouafi, N.; Stevens, M.~L.; Whittlesey, P.;

Published by: \grl      Published on: 01/2021

YEAR: 2021     DOI: 10.1029/2020GL090783

Instability; kinetic; plasma; PSP; turbulence; Venus

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

Abstract 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 pl ...

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:

YEAR: 2021     DOI: https://doi.org/10.1029/2020GL091376

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

Narrowband oblique whistler-mode waves: comparing properties observed by Parker Solar Probe at <0.3 AU and STEREO at 1 AU

Cattell, C.; Short, B.; Breneman, A.; Halekas, J.; Whittesley, P.; Larson, D.; Kasper, J.; Stevens, M.; Case, T.; , al;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2021     DOI: "10.1051/0004-6361/202039550"

Parker Data Used; parker solar probe; Solar Probe Plus

2020

Proton core behaviour inside magnetic field switchbacks

During Parker Solar Probe s first two orbits, there are widespread observations of rapid magnetic field reversals known as switchbacks. These switchbacks are extensively found in the near-Sun solar wind, appear to occur in patches, and have possible links to various phenomena such as magnetic reconnection near the solar surface. As switchbacks are associated with faster plasma flows, we questioned whether they are hotter than the background plasma and whether the microphysics inside a switchback is different to its surroundi ...

Woolley, Thomas; Matteini, Lorenzo; Horbury, Timothy; Bale, Stuart; Woodham, Lloyd; Laker, Ronan; Alterman, Benjamin; Bonnell, John; Case, Anthony; Kasper, Justin; Klein, Kristopher; Martinovic, Mihailo; Stevens, Michael;

Published by: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY      Published on: 11/2020

YEAR: 2020     DOI: 10.1093/mnras/staa2770

Parker Data Used

Trajectory Determination for Coronal Ejecta Observed by WISPR/Parker Solar Probe

TheWide-field Imager for Solar Probe(WISPR) onboard theParker Solar Probe(PSP), observing in white light, has a fixed angular field of view, extending from 13.5(circle)to 108(circle)from the Sun and approximately 50(circle)in the transverse direction. Because of the highly elliptical orbit of PSP, the physical extent of the imaged coronal region varies directly as the distance from the Sun, requiring new techniques for analysis of the motions of observed density features. Here, we present a technique for determining the 3D t ...

Liewer, P.; Qiu, J.; Penteado, P.; Hall, J.; Vourlidas, A.; Howard, R.;

Published by: SOLAR PHYSICS      Published on: 10/2020

YEAR: 2020     DOI: 10.1007/s11207-020-01715-y

Parker Data Used

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

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

On the Shape of SEP Electron Spectra: The Role of Interplanetary Transport

We address the effect of particle scattering on the energy spectra of solar energetic electron events using (I) an observational and (II) a modeling approach. (I) We statistically study observations of the STEREO spacecraft, using directional electron measurements made with the Solar Electron and Proton Telescope in the range of 45-425 keV. We compare the energy spectra of the anti-Sunward propagating beam with that of the backward-scattered population and find that, on average, the backward-scattered population shows a h ...

Strauss, R.; Dresing, N.; Kollhoff, A.; Brüdern, M.;

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

YEAR: 2020     DOI: 10.3847/1538-4357/ab91b0

1491; 1693; 830; parker solar probe; Solar Probe Plus

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

Simulating White-Light Images of Coronal Structures for Parker Solar Probe/WISPR: Study of the Total Brightness Profiles

The Wide-field Imager for Parker Solar Probe (WISPR) captures unprecedented white-light images of the solar corona and inner heliosphere. Thanks to the uniqueness of the Parker Solar Probe\textquoterights (PSP) orbit, WISPR is able to image "locally" coronal structures at high spatial and time resolutions. The observed plane of sky, however, rapidly changes because of the PSP\textquoterights high orbital speed. Therefore, the interpretation of the dynamics of the coronal structures recorded by WISPR is not straightforward ...

Nisticò, Giuseppe; Bothmer, Volker; Vourlidas, Angelos; Liewer, Paulett; Thernisien, Arnaud; Stenborg, Guillermo; Howard, Russell;

Published by: Solar Physics      Published on: 04/2020

YEAR: 2020     DOI: 10.1007/s11207-020-01626-y

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

Dependence of the Interplanetary Magnetic Field on Heliocentric Distance at 0.3\textendash1.7~AU: A Six-Spacecraft Study

We use magnetometer data taken simultaneously by MESSENGER, VEX, STEREO and ACE to characterize the variation of the interplanetary magnetic field (IMF) with heliocentric distance, rh, for rh≲ 1 AU. Power law fits (a rh b) to the individual IMF components and magnitude indicate that, on average, the IMF is more tightly wound and its strength decreases less rapidly with rh than the Parker spiral prediction. During Solar Cycle 24, temporal changes in b were insignificant, but changes in amplitude, a, were correlated with ...

Hanneson, Cedar; Johnson, Catherine; Mittelholz, Anna; Asad, Manar; Goldblatt, Colin;

Published by: Journal of Geophysical Research: Space Physics      Published on: 03/2020

YEAR: 2020     DOI: 10.1029/2019JA027139

Heliosphere; IMF; interplanetary magnetic field; Mars; Mercury; parker solar probe; Solar Probe Plus; Venus

Ion-scale Electromagnetic Waves in the Inner Heliosphere

Understanding the physical processes in the solar wind and corona that actively contribute to heating, acceleration, and dissipation is a primary objective of NASA\textquoterights Parker Solar Probe (PSP) mission. Observations of circularly polarized electromagnetic waves at ion scales suggest that cyclotron resonance and wave-particle interactions are dynamically relevant in the inner heliosphere. A wavelet-based statistical study of circularly polarized events in the first perihelion encounter of PSP demonstrates that t ...

Bowen, Trevor; Mallet, Alfred; Huang, Jia; Klein, Kristopher; Malaspina, David; Stevens, Michael; Bale, Stuart; Bonnell, J.; Case, Anthony; Chandran, Benjamin; Chaston, C.; Chen, Christopher; de Wit, Thierry; Goetz, Keith; Harvey, Peter; Howes, Gregory; Kasper, J.; Korreck, Kelly; Larson, Davin; Livi, Roberto; MacDowall, Robert; McManus, Michael; Pulupa, Marc; Verniero, J.; Whittlesey, Phyllis;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab6c65

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

Parker Solar Probe In Situ Observations of Magnetic Reconnection Exhausts during Encounter 1

Magnetic reconnection in current sheets converts magnetic energy into particle energy. The process may play an important role in the acceleration and heating of the solar wind close to the Sun. Observations from Parker Solar Probe (PSP) provide a new opportunity to study this problem, as it measures the solar wind at unprecedented close distances to the Sun. During the first orbit, PSP encountered a large number of current sheets in the solar wind through perihelion at 35.7 solar radii. We performed a comprehensive survey ...

Phan, T.; Bale, S.; Eastwood, J.; Lavraud, B.; Drake, J.; Oieroset, M.; Shay, M.; Pulupa, M.; Stevens, M.; MacDowall, R.; Case, A.; Larson, D.; Kasper, J.; Whittlesey, P.; Szabo, A.; Korreck, K.; Bonnell, J.; de Wit, Dudok; Goetz, K.; Harvey, P.; Horbury, T.; Livi, R.; Malaspina, D.; Paulson, K.; Raouafi, N.; Velli, M.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab55ee

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

Parker Solar Probe Observations of a Dust Trail in the Orbit of (3200) Phaethon

We present the identification and preliminary analysis of a dust trail following the orbit of (3200) Phaethon as seen in white-light images recorded by the Wide-field Imager for Parker Solar Probe (WISPR) instrument on the NASA Parker Solar Probe (PSP) mission. During PSP\textquoterights first solar encounter in 2018 November, a dust trail following Phaethon\textquoterights orbit was visible for several days and crossing two fields of view. Preliminary analyses indicate this trail to have a visual magnitude of 15.8 \textp ...

Battams, Karl; Knight, Matthew; Kelley, Michael; Gallagher, Brendan; Howard, Russell; Stenborg, Guillermo;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab6c68

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

Morphological Reconstruction of a Small Transient Observed by Parker Solar Probe on 2018 November 5

On 2018 November 5, about 24 hr before the first close perihelion passage of Parker Solar Probe (PSP), a coronal mass ejection (CME) entered the field of view of the inner detector of the Wide-field Imager for Solar PRobe (WISPR) instrument on board PSP, with the northward component of its trajectory carrying the leading edge of the CME off the top edge of the detector about four hours after its first appearance. We connect this event to a very small jetlike transient observed from 1 au by coronagraphs on both the SOlar a ...

Wood, Brian; Hess, Phillip; Howard, Russell; Stenborg, Guillermo; Wang, Yi-Ming;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab5219

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

Plasma Waves near the Electron Cyclotron Frequency in the Near-Sun Solar Wind

Data from the first two orbits of the Sun by Parker Solar Probe reveal that the solar wind sunward of 50 solar radii is replete with plasma waves and instabilities. One of the most prominent plasma wave power enhancements in this region appears near the electron cyclotron frequency (fce). Most of this wave power is concentrated in electric field fluctuations near 0.7 fce and fce, with strong harmonics of both frequencies extending above fce. At least two distinct, often concurre ...

Malaspina, David; Halekas, Jasper; c, Laura; Larson, Davin; Whittlesey, Phyllis; Bale, Stuart; Bonnell, John; de Wit, Thierry; Ergun, Robert; Howes, Gregory; Goetz, Keith; Goodrich, Katherine; Harvey, Peter; MacDowall, Robert; Pulupa, Marc; Case, Anthony; Kasper, Justin; Korreck, Kelly; Livi, Roberto; Stevens, Michael;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab4c3b

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

Predicting the Solar Wind at the Parker Solar Probe Using an Empirically Driven MHD Model

Since its launch on 2018 August 12, Parker Solar Probe (PSP) has completed its first and second orbits around the Sun, having reached down to 35.7 solar radii at each perihelion. In anticipation of the exciting new data at such unprecedented distances, we have simulated the global 3D heliosphere using an MHD model coupled with a semi-empirical coronal model using the best available photospheric magnetograms as input. We compare our heliospheric MHD simulation results with in situ measurements along the PSP trajectory from ...

Kim, T.; Pogorelov, N.; Arge, C.; Henney, C.; Jones-Mecholsky, S.; Smith, W.; Bale, S.; Bonnell, J.; de Wit, Dudok; Goetz, K.; Harvey, P.; MacDowall, R.; Malaspina, D.; Pulupa, M.; Kasper, J.; Korreck, K.; Stevens, M.; Case, A.; Whittlesey, P.; Livi, R.; Larson, D.; Klein, K.; Zank, G.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab58c9

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

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

Sharp Alfv\ enic Impulses in the Near-Sun Solar Wind

Measurements of the near-Sun solar wind by the Parker Solar Probe have revealed the presence of large numbers of discrete Alfv\ enic impulses with an anti-sunward sense of propagation. These are similar to those previously observed near 1 au, in high speed streams over the Sun\textquoterights poles and at 60 solar radii. At 35 solar radii, however, they are typically shorter and sharper than seen elsewhere. In addition, these spikes occur in "patches" and there are also clear periods within the same stream when they do no ...

Horbury, Timothy; Woolley, Thomas; Laker, Ronan; Matteini, Lorenzo; Eastwood, Jonathan; Bale, Stuart; Velli, Marco; Chandran, Benjamin; Phan, Tai; Raouafi, Nour; Goetz, Keith; Harvey, Peter; Pulupa, Marc; Klein, K.; de Wit, Thierry; Kasper, Justin; Korreck, Kelly; Case, A.; Stevens, Michael; Whittlesey, Phyllis; Larson, Davin; MacDowall, Robert; Malaspina, David; Livi, Roberto;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab5b15

Parker Data Used; parker solar probe; Solar Probe Plus

The Solar Probe ANalyzers\textemdashElectrons on the Parker Solar Probe

Electrostatic analyzers of different designs have been used since the earliest days of the space age, beginning with the very earliest solar-wind measurements made by Mariner 2 en route to Venus in 1962. The Parker Solar Probe (PSP) mission, NASA\textquoterights first dedicated mission to study the innermost reaches of the heliosphere, makes its thermal plasma measurements using a suite of instruments called the Solar Wind Electrons, Alphas, and Protons (SWEAP) investigation. SWEAP\textquoterights electron PSP Analyzer (S ...

Whittlesey, Phyllis; Larson, Davin; Kasper, Justin; Halekas, Jasper; Abatcha, Mamuda; Abiad, Robert; Berthomier, M.; Case, A.; Chen, Jianxin; Curtis, David; Dalton, Gregory; Klein, Kristopher; Korreck, Kelly; Livi, Roberto; Ludlam, Michael; Marckwordt, Mario; Rahmati, Ali; Robinson, Miles; Slagle, Amanda; Stevens, M.; Tiu, Chris; Verniero, J.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab7370

Astrophysics - Instrumentation and Methods for Astrophysics; Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Space Physics; Solar coronal heating; Solar instruments; Solar Probe Plus; Solar wind; Space plasmas

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

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

WISPR Imaging of a Pristine CME

The Wide-field Imager for Solar Probe (WISPR) on board the Parker Solar Probe (PSP) observed a coronal mass ejection (CME) on 2018 November 1, the first day of the initial PSP encounter. The speed of the CME, approximately 200-300 km s-1 in the WISPR field of view, is typical of slow, streamer blowout CMEs. This event was also observed by the Large Angle and Spectrometric Coronagraph Experiment (LASCO) coronagraphs. WISPR and LASCO view remarkably similar structures that enable useful cross-comparison between t ...

Hess, Phillip; Rouillard, Alexis; Kouloumvakos, Athanasios; Liewer, Paulett; Zhang, Jie; Dhakal, Suman; Stenborg, Guillermo; Colaninno, Robin; Howard, Russell;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab4ff0

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

Proton Temperature Anisotropy Variations in Inner Heliosphere Estimated with the First Parker Solar Probe Observations

We present a technique for deriving the temperature anisotropy of solar wind protons observed by the Parker Solar Probe (PSP) mission in the near-Sun solar wind. The radial proton temperature measured by the Solar Wind Electrons, Alphas, and Protons (SWEAP) Solar Probe Cup is compared with the orientation of local magnetic field measured by the FIELDS fluxgate magnetometer, and the proton temperatures parallel and perpendicular to the magnetic field are extracted. This procedure is applied to different data products, and the ...

Huang, Jia; Kasper, J.; Vech, D.; Klein, K.; Stevens, M.; Martinovic, Mihailo; Alterman, B.; Durovcova, Tereza; Paulson, Kristoff; Maruca, Bennett; Qudsi, Ramiz; Case, A.; Korreck, K.; Jian, Lan; Velli, Marco; Lavraud, B.; Hegedus, A.; Bert, C.; Holmes, J.; Bale, Stuart; Larson, Davin; Livi, Roberto; Whittlesey, P.; Pulupa, Marc; MacDowall, Robert; Malaspina, David; Bonnell, John; Harvey, Peter; Goetz, Keith; de Wit, Thierry;

Published by: ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab74e0

Parker Data Used

Detailed Imaging of Coronal Rays with the Parker Solar Probe

The Wide-field Imager for Solar PRobe (WISPR) obtained the first high-resolution images of coronal rays at heights below 15 R when the Parker Solar Probe (PSP) was located inside 0.25 au during the first encounter. We exploit these remarkable images to reveal the structure of coronal rays at scales that are not easily discernible in images taken from near 1 au. To analyze and interpret WISPR observations, which evolve rapidly both radially and longitudinally, we construct a latitude versus time map using the ...

Poirier, Nicolas; Kouloumvakos, Athanasios; Rouillard, Alexis; Pinto, Rui; Vourlidas, Angelos; Stenborg, Guillermo; Valette, Emeline; Howard, Russell; Hess, Phillip; Thernisien, Arnaud; Rich, Nathan; Griton, Lea; Indurain, Mikel; Raouafi, Nour-Edine; Lavarra, Michael; eville, Victor;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab6324

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

Electrons in the Young Solar Wind: First Results from the Parker Solar Probe

The Solar Wind Electrons Alphas and Protons experiment on the Parker Solar Probe (PSP) mission measures the three-dimensional electron velocity distribution function. We derive the parameters of the core, halo, and strahl populations utilizing a combination of fitting to model distributions and numerical integration for ̃100,000 electron distributions measured near the Sun on the first two PSP orbits, which reached heliocentric distances as small as ̃0.17 au. As expected, the electron core density and temperature increa ...

Halekas, J.; Whittlesey, P.; Larson, D.; McGinnis, D.; Maksimovic, M.; Berthomier, M.; Kasper, J.; Case, A.; Korreck, K.; Stevens, M.; Klein, K.; Bale, S.; MacDowall, R.; Pulupa, M.; Malaspina, D.; Goetz, K.; Harvey, P.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab4cec

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

The Heliospheric Current Sheet in the Inner Heliosphere Observed by the Parker Solar Probe

The Parker Solar Probe (PSP) completed its first solar encounter in 2018 November, bringing it closer to the Sun than any previous mission. This allowed in situ investigation of the heliospheric current sheet (HCS) inside the orbit of Venus. The Parker observations reveal a well defined magnetic sector structure placing the spacecraft in a negative polarity region for most of the encounter. The observed current sheet crossings are compared to the predictions of both potential field source surface and magnetohydrodynamic m ...

Szabo, Adam; Larson, Davin; Whittlesey, Phyllis; Stevens, Michael; Lavraud, Benoit; Phan, Tai; Wallace, Samantha; Jones-Mecholsky, Shaela; Arge, Charles; Badman, Samuel; Odstrcil, Dusan; Pogorelov, Nikolai; Kim, Tae; Riley, Pete; Henney, Carl; Bale, Stuart; Bonnell, John; Case, Antony; de Wit, Thierry; Goetz, Keith; Harvey, Peter; Kasper, Justin; Korreck, Kelly; Koval, Andriy; Livi, Roberto; MacDowall, Robert; Malaspina, David; Pulupa, Marc;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab5dac

Parker Data Used; parker solar probe; Solar Probe Plus

Modeling the Early Evolution of a Slow Coronal Mass Ejection Imaged by the Parker Solar Probe

During its first solar encounter, the Parker Solar Probe (PSP) acquired unprecedented up-close imaging of a small coronal mass ejection (CME) propagating in the forming slow solar wind. The CME originated as a cavity imaged in extreme ultraviolet that moved very slowly (<50 km s(-1)) to 3-5 solar radii (R), where it then accelerated to supersonic speeds. We present a new model of an erupting flux rope (FR) that computes the forces acting on its expansion with a computation of its internal magnetic field in three dimensions. ...

Rouillard, Alexis; Poirier, Nicolas; Lavarra, Michael; Bourdelle, Anthony; Dalmasse, Kevin; Kouloumvakos, Athanasios; Vourlidas, Angelos; Kunkel, Valbona; Hess, Phillip; Howard, Russ; Stenborg, Guillermo; Raouafi, Nour;

Published by: ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES      Published on: 02/2019

YEAR: 2020     DOI: 10.3847/1538-4365/ab6610

Parker Data Used

Highly Alfv\ enic slow solar wind at 0.3 au during a solar minimum: Helios insights for Parker Solar Probe and Solar Orbiter

Alfv\ enic fluctuations in solar wind are an intrinsic property of fast streams, while slow intervals typically have a very low degree of Alfv\ enicity, with much more variable parameters. However, sometimes a slow wind can be highly Alfv\ enic. Here we compare three different regimes of solar wind, in terms of Alfv\ enic content and spectral properties, during a minimum phase of the solar activity and at 0.3 au. We show that fast and Alfv\ enic slow intervals share some common characteristics. This would suggest a simila ...

Perrone, D.; D\textquoterightAmicis, R.; De Marco, R.; Matteini, L.; Stansby, D.; Bruno, R.; Horbury, T.;

Published by: Astronomy \& Astrophysics      Published on: 01/2020

YEAR: 2020     DOI: 10.1051/0004-6361/201937064

parker solar probe; plasmas; Solar Probe Plus; Solar wind; Sun: corona; Sun: heliosphere; turbulence

Magnetic increases with central current sheets: Observations with Parker Solar Probe

Fargette, N.; Lavraud, B.; Rouillard, A.; Eastwood, J.; Bale, S.; Phan, T.; Oieroset, M.; Halekas, J.; Kasper, J.; Berthomier, M.; Case, A.; Korreck, K.; Larson, D.; Louarn, P.; Malaspina, D.; Pulupa, M.; Stevens, M.; Whittlesey, P.; al., et;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039191"

Parker Data Used; parker solar probe; Solar Probe Plus

Electron heat flux in the near-Sun environment

Halekas, J.; Whittlesey, P.; Larson, D.; McGinnis, D.; Bale, S.; Berthomier, M.; Case, A.; Chandran, B.; Kasper, J.; Klein, K.; Korreck, K.; Livi, R.; MacDowall, R.; Maksimovic, M.; al., et;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039256"

Parker Data Used; parker solar probe; Solar Probe Plus

PSP/WISPR observations of dust density depletion near the Sun I. Remote observations to 8 Rsol from an observer between 0.13-0.35 AU

Stenborg, G.; Howard, R.; Hess, P.; Gallagher, B.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039284"

Parker Data Used; parker solar probe; Solar Probe Plus

A new view of energetic particles from stream interaction regions observed by Parker Solar Probe

Schwadron, N.; Joyce, C.; Aly, A.; Cohen, C.; Desai, M.; McComas, D.; Niehof, J.; Möbius, E.; al., et;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039352"

Parker Data Used; parker solar probe; Solar Probe Plus

Statistical analysis of orientation, shape, and size of solar wind switchbacks

Laker, R.; Horbury, T.; Bale, S.; Matteini, L.; Woolley, T.; Woodham, L.; Badman, S.; Pulupa, M.; Kasper, J.; Stevens, M.; Case, A.; Korreck, K.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039354"

Parker Data Used; parker solar probe; Solar Probe Plus

Dust observations from Parker Solar Probe: Dust ejection from the inner Solar System

Mann, I.; Czechowski, A.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039362"

Parker Data Used; parker solar probe; Solar Probe Plus

Enhanced proton parallel temperature inside patches of switchbacks in the inner heliosphere

Woodham, L.; Horbury, T.; Matteini, L.; Woolley, T.; Laker, R.; Bale, S.; Nicolaou, G.; Stawarz, J.; Stansby, D.; Hietala, H.; Larson, D.; Livi, R.; Verniero, J.; McManus, M.; Kasper, J.; Korreck, K.; Raouafi, N.; Moncuquet, M.; Pulupa, M.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039415"

Parker Data Used; parker solar probe; Solar Probe Plus

Switchbacks as signatures of magnetic flux ropes generated by interchange reconnection in the corona

Drake, J.; Agapitov, A.; Swisdak, M.; Badman, S.; Bale, S.; Horbury, T.; Kasper, Justin; MacDowall, R.; Mozer, F.; Phan, T.; Pulupa, M.; Szabo, A.; Velli, M.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039432"

Parker Data Used; parker solar probe; Solar Probe Plus

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

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:

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

Parker Data Used; parker solar probe; Solar Probe Plus

2019

Alfv\ enic velocity spikes and rotational flows in the near-Sun solar wind

Kasper, J.~C.; Bale, S.~D.; Belcher, J.~W.; Berthomier, M.; Case, A.~W.; Chandran, B.~D.~G.; Curtis, D.~W.; Gallagher, D.; Gary, S.~P.; Golub, L.; Halekas, J.~S.; Ho, G.~C.; Horbury, T.~S.; Hu, Q.; Huang, J.; Klein, K.~G.; Korreck, K.~E.; Larson, D.~E.; Livi, R.; Maruca, B.; Lavraud, B.; Louarn, P.; Maksimovic, M.; Martinovic, M.; McGinnis, D.; Pogorelov, N.~V.; Richardson, J.~D.; Skoug, R.~M.; Steinberg, J.~T.; Stevens, M.~L.; Szabo, A.; Velli, M.; Whittlesey, P.~L.; Wright, K.~H.; Zank, G.~P.; MacDowall, R.~J.; McComas, D.~J.; McNutt, R.~L.; Pulupa, M.; Raouafi, N.~E.; Schwadron, N.~A.;

Published by: \nat      Published on: 12/2019

YEAR: 2019     DOI: 10.1038/s41586-019-1813-z

Parker Data Used

Alfv\ enic velocity spikes and rotational flows in the near-Sun solar wind

Kasper, J.~C.; Bale, S.~D.; Belcher, J.~W.; Berthomier, M.; Case, A.~W.; Chandran, B.~D.~G.; Curtis, D.~W.; Gallagher, D.; Gary, S.~P.; Golub, L.; Halekas, J.~S.; Ho, G.~C.; Horbury, T.~S.; Hu, Q.; Huang, J.; Klein, K.~G.; Korreck, K.~E.; Larson, D.~E.; Livi, R.; Maruca, B.; Lavraud, B.; Louarn, P.; Maksimovic, M.; Martinovic, M.; McGinnis, D.; Pogorelov, N.~V.; Richardson, J.~D.; Skoug, R.~M.; Steinberg, J.~T.; Stevens, M.~L.; Szabo, A.; Velli, M.; Whittlesey, P.~L.; Wright, K.~H.; Zank, G.~P.; MacDowall, R.~J.; McComas, D.~J.; McNutt, R.~L.; Pulupa, M.; Raouafi, N.~E.; Schwadron, N.~A.;

Published by: \nat      Published on: 12/2019

YEAR: 2019     DOI: 10.1038/s41586-019-1813-z

Parker Data Used

Alfv\ enic velocity spikes and rotational flows in the near-Sun solar wind

Kasper, J.~C.; Bale, S.~D.; Belcher, J.~W.; Berthomier, M.; Case, A.~W.; Chandran, B.~D.~G.; Curtis, D.~W.; Gallagher, D.; Gary, S.~P.; Golub, L.; Halekas, J.~S.; Ho, G.~C.; Horbury, T.~S.; Hu, Q.; Huang, J.; Klein, K.~G.; Korreck, K.~E.; Larson, D.~E.; Livi, R.; Maruca, B.; Lavraud, B.; Louarn, P.; Maksimovic, M.; Martinovic, M.; McGinnis, D.; Pogorelov, N.~V.; Richardson, J.~D.; Skoug, R.~M.; Steinberg, J.~T.; Stevens, M.~L.; Szabo, A.; Velli, M.; Whittlesey, P.~L.; Wright, K.~H.; Zank, G.~P.; MacDowall, R.~J.; McComas, D.~J.; McNutt, R.~L.; Pulupa, M.; Raouafi, N.~E.; Schwadron, N.~A.;

Published by: \nat      Published on: 12/2019

YEAR: 2019     DOI: 10.1038/s41586-019-1813-z

Parker Data Used

Highly structured slow solar wind emerging from an equatorial coronal hole

During the solar minimum, when the Sun is at its least active, the solar wind is observed at high latitudes as a predominantly fast (more than 500 kilometres per second), highly Alfv\ enic rarefied stream of plasma originating from deep within coronal holes. Closer to the ecliptic plane, the solar wind is interspersed with a more variable slow wind of less than 500 kilometres per second. The precise origins of the slow wind streams are less certain; theories and observations suggest that they may originate at the tips of ...

Bale, S.; Badman, S.; Bonnell, J.; Bowen, T.; Burgess, D.; Case, A.; Cattell, C.; Chandran, B.; Chaston, C.; Chen, C.; Drake, J.; de Wit, Dudok; Eastwood, J.; Ergun, R.; Farrell, W.; Fong, C.; Goetz, K.; Goldstein, M.; Goodrich, K.; Harvey, P.; Horbury, T.; Howes, G.; Kasper, J.; Kellogg, P.; Klimchuk, J.; Korreck, K.; Krasnoselskikh, V.; Krucker, S.; Laker, R.; Larson, D.; MacDowall, R.; Maksimovic, M.; Malaspina, D.; Martinez-Oliveros, J.; McComas, D.; Meyer-Vernet, N.; Moncuquet, M.; Mozer, F.; Phan, T.; Pulupa, M.; Raouafi, N.; Salem, C.; Stansby, D.; Stevens, M.; Szabo, A.; Velli, M.; Woolley, T.; Wygant, J.;

Published by: Nature      Published on: 12/2019

YEAR: 2019     DOI: 10.1038/s41586-019-1818-7

Parker Data Used; parker solar probe; Solar Probe Plus

Highly structured slow solar wind emerging from an equatorial coronal hole

During the solar minimum, when the Sun is at its least active, the solar wind is observed at high latitudes as a predominantly fast (more than 500 kilometres per second), highly Alfv\ enic rarefied stream of plasma originating from deep within coronal holes. Closer to the ecliptic plane, the solar wind is interspersed with a more variable slow wind of less than 500 kilometres per second. The precise origins of the slow wind streams are less certain; theories and observations suggest that they may originate at the tips of ...

Bale, S.; Badman, S.; Bonnell, J.; Bowen, T.; Burgess, D.; Case, A.; Cattell, C.; Chandran, B.; Chaston, C.; Chen, C.; Drake, J.; de Wit, Dudok; Eastwood, J.; Ergun, R.; Farrell, W.; Fong, C.; Goetz, K.; Goldstein, M.; Goodrich, K.; Harvey, P.; Horbury, T.; Howes, G.; Kasper, J.; Kellogg, P.; Klimchuk, J.; Korreck, K.; Krasnoselskikh, V.; Krucker, S.; Laker, R.; Larson, D.; MacDowall, R.; Maksimovic, M.; Malaspina, D.; Martinez-Oliveros, J.; McComas, D.; Meyer-Vernet, N.; Moncuquet, M.; Mozer, F.; Phan, T.; Pulupa, M.; Raouafi, N.; Salem, C.; Stansby, D.; Stevens, M.; Szabo, A.; Velli, M.; Woolley, T.; Wygant, J.;

Published by: Nature      Published on: 12/2019

YEAR: 2019     DOI: 10.1038/s41586-019-1818-7

Parker Data Used; parker solar probe; Solar Probe Plus



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