PSP Bibliography





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Found 208 entries in the Bibliography.


Showing entries from 101 through 150


2020

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 Heating along Intermittent Structures in the Inner Heliosphere from PSP Data

The solar wind proton temperature at 1 au has been found to be correlated with small-scale intermittent magnetic structures, i.e., regions with enhanced temperature are associated with coherent structures, such as current sheets. Using Parker Solar Probe data from the first encounter, we study this association using measurements of the radial proton temperature, employing the partial variance of increments (PVI) technique to identify intermittent magnetic structures. We observe that the probability density functions of hi ...

Qudsi, R.; Maruca, B.; Matthaeus, W.; Parashar, T.; Bandyopadhyay, Riddhi; Chhiber, R.; Chasapis, A.; Goldstein, Melvyn; Bale, S.; Bonnell, J.; de Wit, Dudok; Goetz, K.; Harvey, P.; MacDowall, R.; Malaspina, D.; Pulupa, M.; Kasper, J.; Korreck, K.; Case, A.; Stevens, M.; Whittlesey, P.; Larson, D.; Livi, R.; Velli, M.; Raouafi, N.;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab5c19

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

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

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

The Radial Dependence of Proton-scale Magnetic Spectral Break in Slow Solar Wind during PSP Encounter 2

Magnetic field fluctuations in the solar wind are commonly observed to follow a power-law spectrum. Near proton-kinetic scales, a spectral break occurs that is commonly interpreted as a transition to kinetic turbulence. However, this transition is not yet entirely understood. By studying the scaling of the break with various plasma properties, it may be possible to constrain the processes leading to the onset of kinetic turbulence. Using data from the Parker Solar Probe, we measure the proton-scale break over a range of h ...

Duan, Die; Bowen, Trevor; Chen, Christopher; Mallet, Alfred; He, Jiansen; Bale, Stuart; Vech, Daniel; Kasper, J.; Pulupa, Marc; Bonnell, John; Case, Anthony; de Wit, Thierry; Goetz, Keith; Harvey, Peter; Korreck, Kelly; Larson, Davin; Livi, Roberto; MacDowall, Robert; Malaspina, David; Stevens, Michael; Whittlesey, Phyllis;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab672d

Parker Data Used; parker solar probe; Physics - Plasma Physics; 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

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

During Parker Solar Probe\textquoterights first orbit, the solar wind plasma was observed in situ closer than ever before, the perihelion on 2018 November 6 revealing a flow that is constantly permeated by large-amplitude Alfv\ enic fluctuations. These include radial magnetic field reversals, or switchbacks, that seem to be a persistent feature of the young solar wind. The measurements also reveal a very strong, unexpected, azimuthal velocity component. In this work, we numerically model the solar corona during this first ...

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

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab4fef

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

Using Kepler\textquoterights laws and Rutherford scattering to chart the seven gravity assists in the epic sunward journey of the Parker Solar Probe

On August 12, 2018, NASA launched the Parker Solar Probe (PSP) to explore regions very near the Sun. Losing enough energy and angular momentum to approach the Sun requires either an impractical amount of fuel or a maneuver called a gravity assist. A gravity assist is essentially an elastic collision with a massive, moving target\textemdashRutherford scattering from a planet. Gravity assists are often used to gain energy in missions destined for the outer solar system, but they can also be used to lose energy. Reaching an ...

Longcope, Dana;

Published by: American Journal of Physics      Published on: 01/2020

YEAR: 2020     DOI: 10.1119/10.0000145

Parker Data Used; parker solar probe; Solar Probe Plus

Exploring the innermost solar atmosphere

The Parker Solar Probe spacecraft completed the first two of its 24 scheduled orbits around the Sun on 18 June 2019, making history by flying halfway between Mercury and the Sun.

Parker, Eugene;

Published by: Nature Astronomy      Published on: 01/2020

YEAR: 2020     DOI: 10.1038/s41550-019-0985-7

Parker Data Used; parker solar probe; Solar Probe Plus

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

The contribution of alpha particles to the solar wind angular momentum flux in the inner heliosphere

Finley, A.; McManus, M.; Matt, S.; Kasper, J.; Korreck, K.; Case, A.; Stevens, M.; Whittlesey, P.; Larson, D.; Livi, R.; Bale, S.; de Wit, Dudok; Goetz, K.; Harvey, P.; MacDowall, R.; Malaspina, D.; Pulupa, M.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039288"

Parker Data Used; parker solar probe; Solar Probe Plus

Wave-particle energy transfer directly observed in an ion cyclotron wave

Vech, D.; c, M.; Klein, K.G.; Malaspina, D.; Bowen, T.A.; Verniero, J.L.; Paulson, K.; de Wit, Dudok; Kasper, J.C.; Huang, J.; Stevens, M.L.; Case, A.W.; Korreck, K.; Mozer, F.S.; Goodrich, K.A.; Bale, S.D.; Whittlesey, P.L.; Livi, R.; Larson, D.E.; Pulupa, M.; Bonnell, J.; Harvey, P.; Goetz, K.; MacDowall, R.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039296"

Parker Data Used; parker solar probe; Solar Probe Plus

Modeling proton and electron heating in the fast solar wind

Adhikari, L.; Zank, G.P.; Zhao, L.-L.; Nakanotani, M.; Tasnim, S.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039297"

Parker Data Used; parker solar probe; Solar Probe Plus

Detection of small magnetic flux ropes from the third and fourth Parker Solar Probe encounters

Zhao, L.-L.; Zank, G.; Hu, Q.; al., et;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039298"

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

Measurement of the open magnetic flux in the inner heliosphere down to 0.13 AU

Badman, S.; Bale, S.; Rouillard, A.; Bowen, T.; Bonnell, J.; Goetz, K.; Harvey, P.; MacDowall, R.; Malaspina, D.; Pulupa, M.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039407"

Parker Data Used; parker solar probe; Solar Probe Plus

Tracking solar wind flows from rapidly varying viewpoints by the Wide-field Imager for Parker Solar Probe

Nindos, A.; Patsourakos, S.; Vourlidas, A.; Liewer, P.C.; Penteado, P.; Hall, J.R.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039414"

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

Coronal mass ejections observed by heliospheric imagers at 0.2 and 1 au. The events on April 1 and 2, 2019

Braga, C.; Vourlidas, A.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039490"

Parker Data Used; parker solar probe; Solar Probe Plus

Identification of coherent structures in space plasmas: The magnetic helicity-PVI method

Pecora, F.; Servidio, S.; Greco, A.; Matthaeus, W.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039639"

Parker Data Used; parker solar probe; Solar Probe Plus

Evolution of a steamer-blowout CME as observed by imagers on Parker Solar Probe and the Solar Terrestrial Relations Observatory

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

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039641"

Parker Data Used; parker solar probe; Solar Probe Plus

Sensitivity of solar wind mass flux to coronal temperature

Stansby, D.; Bercic, L.; Matteini, L.; Owen, C.; French, R.; Baker, D.; Badman, S.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039789"

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

Prevalence of magnetic reconnection in the near-Sun heliospheric current sheet

Phan, T.; Lavraud, B.; S., J.; , Halekas; Oieroset, M.; Drake, J.; Eastwood, J.; Shay, M.; Bale, S.; Larson, D.; Livi, R.; Whittlesey, P.; Rahmati, A.; Pulupa, M.; McManus, M.; Verniero, J.; Bonnell, J.; Stevens, M.; Case, A.; al., et;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039863"

Parker Data Used; parker solar probe; Solar Probe Plus

2019

Correcting Parker Solar Probe Electron Measurements for Spacecraft Magnetic and Electric Fields

The spacecraft body of the Parker Solar Probe may interfere with electron measurements in two ways. The first is the presence of several permanent magnets near the Solar Probe Analyzers (SPAN) instruments. The second is the widely varying spacecraft potential. We estimate the effect of these interferences by performing particle tracing simulations on electrons of various energies using a simplified model of the spacecraft potential and measurements of the magnetic fields. From this we can (1) estimate the individual and comb ...

McGinnis, Daniel; Halekas, Jasper; Whittlesey, Phyllis; Larson, Davin; Kasper, Justin;

Published by: JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS      Published on: SEP

YEAR: 2019     DOI: 10.1029/2019JA026823

Parker Data Used

Contextual Predictions for Parker Solar Probe. II. Turbulence Properties and Taylor Hypothesis

The Parker Solar Probe (PSP) primary mission extends seven years and consists of 24 orbits of the Sun with descending perihelia culminating in a closest approach of similar to 9.8 R-circle dot. In the course of these orbits PSP will pass through widely varying conditions, including anticipated large variations of turbulence properties, such as energy density, correlation scales, and cross helicities. Here we employ global magnetohydrodynamic simulations with self-consistent turbulence transport and heating to preview conditi ...

Chhiber, Rohit; , Usmanov; Matthaeus, William; Parashar, Tulasi; Goldstein, Melvyn;

Published by: ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES      Published on: MAY

YEAR: 2019     DOI: 10.3847/1538-4365/ab16d7

Parker Data Used

Dynamics of the solar wind: Eugene Parker s treatment and the laws of thermodynamics

In 1958, Eugene Parker advanced that the solar wind must be produced through the thermal expansion of coronal gas. At the time, he introduced

Robitaille, Pierre-Marie; Crothers, Stephen;

Published by: PHYSICS ESSAYS      Published on: MAR

YEAR: 2019     DOI: 10.4006/0836-1398-32.1.1

Parker Data Used

Strong Preferential Ion Heating is Limited to within the Solar Alfven Surface

The decay of the solar wind helium-to-hydrogen temperature ratio due to Coulomb thermalization can be used to measure how far from the Sun strong preferential ion heating occurs. Previous work has shown that a zone of preferential ion heating, resulting in mass-proportional temperatures, extends about 20-40 R-circle dot from the Sun on average. Here we look at the motion of the outer boundary of this zone with time and compare it to other physically meaningful distances. We report that the boundary moves in lockstep with the ...

Kasper, Justin; Klein, Kristopher;

Published by: ASTROPHYSICAL JOURNAL LETTERS      Published on: JUN 1

YEAR: 2019     DOI: 10.3847/2041-8213/ab1de5

Parker Data Used

On the Origin of Ortho-Gardenhose Heliospheric Flux

Parker-spiral theory predicts that the heliospheric magnetic field (HMF) will have components of opposite polarity radially toward the Sun and tangentially antiparallel to the solar rotation direction (i.e., in Geocentric Solar Ecliptic (GSE) coordinates, with BX/BY<0). This theory explains the average orientation of the HMF very well indeed but does not predict the so-called ortho-gardenhose (hereafter OGH) flux with which is frequently observed. We here study the occurrence and structure of OGH flux, as seen in near-Earth ...

Lockwood, Mike; Owens, Mathew; Macneil, Allan;

Published by: SOLAR PHYSICS      Published on: JUN

YEAR: 2019     DOI: 10.1007/s11207-019-1478-7

Parker Data Used

Towards Construction of a Solar Wind Reanalysis Dataset: Application to the First Perihelion Pass of Parker Solar Probe

Accurate reconstruction of global solar-wind structure is essential for connecting remote and in situ observations of solar plasma, and hence understanding formation and release of solar wind. Information can routinely be obtained from photospheric magnetograms, via coronal and solar-wind modelling, and directly from in situ observations, typically at large heliocentric distances (most commonly near 1 AU). Magnetogram-constrained modelling has the benefit of reconstructing global solar-wind structure, but with relatively lar ...

Owens, Mathew; Lang, Matthew; Riley, Pete; Stansby, David;

Published by: SOLAR PHYSICS      Published on: JUN

YEAR: 2019     DOI: 10.1007/s11207-019-1479-6

Parker Data Used

Tomography of the Solar Corona with the Wide-Field Imager for the Parker Solar Probe

The Wide-field Imager for the Parker Solar Probe (PSP/WISPR) comprises two telescopes that record white-light total brightness [B] images of the solar corona. Their fields of view cover a widely changing range of heliocentric heights over the 24 highly eccentric orbits planned for the mission. In this work, the capability of PSP/WISPR data to carry out tomographic reconstructions of the three-dimensional (3D) distribution of the coronal electron density is investigated. Based on the precise orbital information of the mission ...

Vasquez, Alberto; Frazin, Richard; Vourlidas, Angelos; Manchester, Ward; van der Holst, Bart; Howard, Russell; Lamy, Philippe;

Published by: SOLAR PHYSICS      Published on: JUN

YEAR: 2019     DOI: 10.1007/s11207-019-1471-1

Parker Data Used

On the Interpretation of Parker Solar Probe Turbulent Signals

In this Letter we propose a practical methodology to interpret future Parker Solar Probe (PSP) turbulent time signals even when Taylor s hypothesis is not valid. By extending Kraichnan s sweeping model used in hydrodynamics we derive the Eulerian spacetime correlation function in magnetohydrodynamic (MHD) turbulence. It is shown that in MHD, the temporal decorrelation of small-scale fluctuations arises from a combination of hydrodynamic sweeping induced by large-scale fluid velocity delta u(0) and by the Alfvenic propagation ...

Bourouaine, Sofiane; Perez, Jean;

Published by: ASTROPHYSICAL JOURNAL LETTERS      Published on: JUL 1

YEAR: 2019     DOI: 10.3847/2041-8213/ab288a

Parker Data Used

Simulating White Light Images of Coronal Structures for WISPR/Parker Solar Probe: Effects of the Near-Sun Elliptical Orbit

The three-to-five-month elliptical orbit of Parker Solar Probe (PSP), approaching within 10 solar radii of the Sun, will allow the Wide-field Imager for Solar Probe (WISPR) to view the corona with unprecedented spatial resolution from multiple viewpoints. WISPR has a wide fixed angular field of view, extending from 13.5 degrees to 108 degrees from the Sun and approximately 50 degrees in the transverse direction, but the physical extent of the imaged coronal region varies directly with the distance of the spacecraft from the ...

Liewer, P.; Vourlidas, A.; Thernisien, A.; Qiu, J.; Penteado, P.; Nistico, G.; Howard, R.; Bothmer, V.;

Published by: SOLAR PHYSICS      Published on: JUL

YEAR: 2019     DOI: 10.1007/s11207-019-1489-4

Parker Data Used

Observing the corona and inner heliosphere with Parker Solar Probe

The recently launched Parker Solar Probe (PSP) mission is expected to provide unprecedented views of the solar corona and inner heliosphere. In addition to instruments devoted to taking measurements of the local solar wind, the spacecraft carries a visible imager: the Wide-field Imager for Solar PRobe (WISPR). WISPR will take advantage of the proximity of the spacecraft to the Sun to perform local imaging of the near-Sun environment. WISPR will observe coronal structures at high spatial and time resolutions, although the obs ...

Nistico, G.; Bothmer, V.; Liewer, P.; Vourlidas, A.; Thernisien, A.;

Published by: NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS      Published on: JAN-FEB

YEAR: 2019     DOI: 10.1393/ncc/i2019-19021-2

Parker Data Used

Predictions for the First Parker Solar Probe Encounter

We examine Alfven Wave Solar atmosphere Model (AWSoM) predictions of the first Parker Solar Probe (PSP) encounter. We focus on the 12 day closest approach centered on the first perihelion. AWSoM allows us to interpret the PSP data in the context of coronal heating via Alfven wave turbulence. The coronal heating and acceleration is addressed via outward-propagating low-frequency Alfven waves that are partially reflected by Alfven speed gradients. The nonlinear interaction of these counter-propagating waves results in a turbul ...

van der Holst, B.; Manchester, W.; Klein, K.; Kasper, J.;

Published by: ASTROPHYSICAL JOURNAL LETTERS      Published on: FEB 20

YEAR: 2019     DOI: 10.3847/2041-8213/ab04a5

Parker Data Used

Frontiers to be explored by the Parker Solar Probe mission

JianSen, He; Hui, Tian;

Published by: SCIENCE CHINA-TECHNOLOGICAL SCIENCES      Published on: AUG

YEAR: 2019     DOI: 10.1007/s11431-018-9399-9

Parker Data Used

Dust observations with antenna measurements and its prospects for observations with Parker Solar Probe and Solar Orbiter

The electric and magnetic field instrument suite FIELDS on board the NASA Parker Solar Probe and the radio and plasma waves instrument RPW on the ESA Solar Orbiter mission that explore the inner heliosphere are sensitive to signals generated by dust impacts. Dust impacts have been observed using electric field antennas on spacecraft since the 1980s and the method was recently used with a number of space missions to derive dust fluxes. Here, we consider the details of dust impacts, subsequent development of the impact gene ...

Mann, Ingrid; ak, Libor; Vaverka, Jakub; Antonsen, Tarjei; Fredriksen, \r; Issautier, Karine; Malaspina, David; Meyer-Vernet, Nicole; u, Ji\v; Sternovsky, Zoltan; Stude, Joan; Ye, Shengyi; Zaslavsky, Arnaud;

Published by: Annales Geophysicae      Published on: 12/2019

YEAR: 2019     DOI: 10.5194/angeo-37-1121-2019

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

Near-Sun observations of an F-corona decrease and K-corona fine structure

Remote observations of the solar photospheric light scattered by electrons (the K-corona) and dust (the F-corona or zodiacal light) have been made from the ground during eclipses and from space at distances as small as 0.3 astronomical units to the Sun. Previous observations of dust scattering have not confirmed the existence of the theoretically predicted dust-free zone near the Sun. The transient nature of the corona has been well characterized for large events, but questions still remain (for example, about the initiat ...

Howard, R.; Vourlidas, A.; Bothmer, V.; Colaninno, R.; DeForest, C.; Gallagher, B.; Hall, J.; Hess, P.; Higginson, A.; Korendyke, C.; Kouloumvakos, A.; Lamy, P.; Liewer, P.; Linker, J.; Linton, M.; Penteado, P.; Plunkett, S.; Poirier, N.; Raouafi, N.; Rich, N.; Rochus, P.; Rouillard, A.; Socker, D.; Stenborg, G.; Thernisien, A.; Viall, N.;

Published by: Nature      Published on: 12/2019

YEAR: 2019     DOI: 10.1038/s41586-019-1807-x

Parker Data Used; parker solar probe; Solar Probe Plus

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

A step closer to the Sun\textquoterights secrets

NASA\textquoterights Parker Solar Probe is currently making a series of close encounters with the Sun. Initial observations from the spacecraft have improved our understanding of both the Sun and its environment.

Verscharen, Daniel;

Published by: Nature      Published on: 12/2019

YEAR: 2019     DOI: 10.1038/d41586-019-03665-3

Parker Data Used; parker solar probe; Solar Probe Plus

Sun-bombing spacecraft uncovers secrets of the solar wind

Surprise magnetic reversals and an unexpectedly fast rotating wind mark the first findings from NASA\textquoterights Parker Solar Probe.

Witze, Alexandra;

Published by: Nature      Published on: 12/2019

YEAR: 2019     DOI: 10.1038/d41586-019-03684-0

Parker Data Used; parker solar probe; Solar Probe Plus



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