PSP Bibliography





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Found 15 entries in the Bibliography.


Showing entries from 1 through 15


2022

Parker Solar Probe Observations of Near-f $_Ce$ Harmonic Emissions in the Near-Sun Solar Wind and Their Dependence on the Magnetic Field Direction

Wave emissions at frequencies near electron gyrofrequency harmonics are observed at small heliocentric distances below about 40 R $_\ensuremath\odot$ and are known to occur in regions with quiescent magnetic fields. We show the close connection of these waves to the large-scale properties of the magnetic field. Near electron gyrofrequency harmonic emissions occur only when the ambient magnetic field points to a narrow range of directions bounded by polar and azimuthal angular ranges in the RTN coordinate system of correspond ...

Tigik, Sabrina; Vaivads, Andris; Malaspina, David; Bale, Stuart;

Published by: \apj      Published on: sep

YEAR: 2022     DOI: 10.3847/1538-4357/ac8473

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

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

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

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

Published by: \apj      Published on: mar

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

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

Radial Evolution of Thermal and Suprathermal Electron Populations in the Slow Solar Wind from 0.13 to 0.5 au: Parker Solar Probe Observations

We develop and apply a bespoke fitting routine to a large volume of solar wind electron distribution data measured by Parker Solar Probe over its first five orbits, covering radial distances from 0.13 to 0.5 au. We characterize the radial evolution of the electron core, halo, and strahl populations in the slow solar wind during these orbits. The fractional densities of these three electron populations provide evidence for the growth of the combined suprathermal halo and strahl populations from 0.13 to 0.17 au. Moreover, the ...

Abraham, Joel; Owen, Christopher; Verscharen, Daniel; Bakrania, Mayur; Stansby, David; Wicks, Robert; Nicolaou, Georgios; Whittlesey, Phyllis; Rueda, Jeffersson; Jeong, Seong-Yeop; Ber\vci\vc, Laura;

Published by: \apj      Published on: jun

YEAR: 2022     DOI: 10.3847/1538-4357/ac6605

Parker Data Used; The Sun; Heliosphere; Plasma physics; Solar wind; 1693; 711; 2089; 1534; Astrophysics - Solar and Stellar Astrophysics; Astrophysics - Earth and Planetary Astrophysics; Physics - Plasma Physics; Physics - Space Physics

Magnetic Field Dropouts and Associated Plasma Wave Emission near the Electron Plasma Frequency at Switchback Boundaries as Observed by the Parker Solar Probe

The first solar encounters by the Parker Solar Probe revealed the magnetic field to be dominated by short field reversals in the radial direction, referred to as switchbacks. While radial velocity and proton temperature were shown to increase inside the switchbacks, \ensuremath\midB\ensuremath\mid exhibits very brief dropouts only at the switchback boundaries. Brief intensifications in spectral density measurements near the electron plasma frequency, f $_pe$, were also observed at these boundaries, indicating the presenc ...

Rasca, Anthony; Farrell, William; Whittlesey, Phyllis; MacDowall, Robert; Bale, Stuart; Kasper, Justin;

Published by: \apj      Published on: aug

YEAR: 2022     DOI: 10.3847/1538-4357/ac80c3

Parker Data Used; Solar magnetic fields; Plasma physics; Solar wind; 1503; 2089; 1534

2021

General Exact Law of Compressible Isentropic Magnetohydrodynamic Flows: Theory and Spacecraft Observations in the Solar Wind

Various forms of exact laws governing magnetohydrodynamic (MHD) turbulence have been derived either in the incompressibility limit, or for isothermal compressible flows. Here we propose a more general method that allows us to obtain such laws for any turbulent isentropic flow (i.e., constant entropy). We demonstrate that the known MHD exact laws (incompressible and isothermal) and the new (polytropic) one can be obtained as specific cases of the general law when the corresponding closure equation is stated. We also recover a ...

Simon, P.; Sahraoui, F.;

Published by: \apj      Published on: jul

YEAR: 2021     DOI: 10.3847/1538-4357/ac0337

Solar wind; Solar Physics; Parker Data Used; Magnetohydrodynamics; Plasma astrophysics; Plasma physics; interplanetary turbulence; 1534; 1476; 1964; 1261; 2089; 830; Physics - Plasma Physics; Physics - Fluid Dynamics

Inferred Linear Stability of Parker Solar Probe Observations Using One- and Two-component Proton Distributions

The hot and diffuse nature of the Sun s extended atmosphere allows it to persist in non-equilibrium states for long enough that wave-particle instabilities can arise and modify the evolution of the expanding solar wind. Determining which instabilities arise, and how significant a role they play in governing the dynamics of the solar wind, has been a decades-long process involving in situ observations at a variety of radial distances. With new measurements from the Parker Solar Probe (PSP), we can study what wave modes are dr ...

Klein, K.; Verniero, J.; Alterman, B.; Bale, S.; Case, A.; Kasper, J.; Korreck, K.; Larson, D.; Lichko, E.; Livi, R.; McManus, M.; Martinovic, M.; Rahmati, A.; Stevens, M.; Whittlesey, P.;

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

YEAR: 2021     DOI: 10.3847/1538-4357/abd7a0

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

Parker Solar Probe Observations of Alfv\ enic Waves and Ion-cyclotron Waves in a Small-scale Flux Rope

Shi, Chen; Zhao, Jinsong; Huang, Jia; Wang, Tieyan; Wu, Dejin; Chen, Yu; Hu, Qiang; Kasper, Justin; Bale, Stuart;

Published by: \apjl      Published on: 02/2021

YEAR: 2021     DOI: 10.3847/2041-8213/abdd28

Solar wind; Space plasmas; Plasma physics; 1534; 1544; 2089

2020

Oblique Tearing Mode Instability: Guide Field and Hall Effect

Shi, Chen; Velli, Marco; Pucci, Fulvia; Tenerani, Anna; Innocenti, Maria;

Published by: \apj      Published on: 10/2020

YEAR: 2020     DOI: 10.3847/1538-4357/abb6fa

Parker Data Used; Solar magnetic reconnection; Plasma physics; Magnetohydrodynamics; 1504; 2089; 1964; Physics - Plasma Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

PIC Simulations of Microinstabilities and Waves at Near-Sun Solar Wind Perpendicular Shocks: Predictions for Parker Solar Probe and Solar Orbiter

Microinstabilities and waves excited at moderate-Mach-number perpendicular shocks in the near-Sun solar wind are investigated by full particle-in-cell simulations. By analyzing the dispersion relation of fluctuating field components directly issued from the shock simulation, we obtain key findings concerning wave excitations at the shock front: (1) at the leading edge of the foot, two types of electrostatic (ES) waves are observed. The relative drift of the reflected ions versus the electrons triggers an electron cyclotro ...

Yang, Zhongwei; Liu, Ying; Matsukiyo, Shuichi; Lu, Quanming; Guo, Fan; Liu, Mingzhe; Xie, Huasheng; Gao, Xinliang; Guo, Jun;

Published by: The Astrophysical Journal      Published on: 09/2020

YEAR: 2020     DOI: 10.3847/2041-8213/abaf59

Interplanetary shocks; parker solar probe; Plasma astrophysics; Plasma physics; Solar Probe Plus; Space plasmas

The Electromagnetic Signature of Outward Propagating Ion-scale Waves

First results from the Parker Solar Probe (PSP) mission have revealed ubiquitous coherent ion-scale waves in the inner heliosphere, which are signatures of kinetic wave-particle interactions and fluid instabilities. However, initial studies of the circularly polarized ion-scale waves observed by PSP have only thoroughly analyzed magnetic field signatures, precluding a determination of solar wind frame propagation direction and intrinsic wave polarization. A comprehensive determination of wave properties requires measureme ...

Bowen, Trevor; Bale, Stuart; Bonnell, J.; Larson, Davin; Mallet, Alfred; McManus, Michael; Mozer, Forrest; Pulupa, Marc; Vasko, Ivan; Verniero, J.;

Published by: The Astrophysical Journal      Published on: 08/2020

YEAR: 2020     DOI: 10.3847/1538-4357/ab9f37

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

Parker Solar Probe Observations of Proton Beams Simultaneous with Ion-scale Waves

Parker Solar Probe (PSP), NASA\textquoterights latest and closest mission to the Sun, is on a journey to investigate fundamental enigmas of the inner heliosphere. This paper reports initial observations made by the Solar Probe Analyzer for Ions (SPAN-I), one of the instruments in the Solar Wind Electrons Alphas and Protons instrument suite. We address the presence of secondary proton beams in concert with ion-scale waves observed by FIELDS, the electromagnetic fields instrument suite. We show two events from PSP\textquote ...

Verniero, J.; Larson, D.; Livi, R.; Rahmati, A.; McManus, M.; Pyakurel, Sharma; Klein, K.; Bowen, T.; Bonnell, J.; Alterman, B.; Whittlesey, P.; Malaspina, David; Bale, S.; Kasper, J.; Case, A.; Goetz, K.; Harvey, P.; Korreck, K.; MacDowall, R.; Pulupa, M.; Stevens, M.; de Wit, Dudok;

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

YEAR: 2020     DOI: 10.3847/1538-4365/ab86af

Alfv\ en waves; Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Space Physics; Plasma physics; Solar Probe Plus; Solar wind; Space plasmas

2019

Scattering of Energetic Electrons by Heat-flux-driven Whistlers in Flares

Roberg-Clark, G.~T.; Agapitov, O.; Drake, J.~F.; Swisdak, M.;

Published by: \apj      Published on: 12/2019

YEAR: 2019     DOI: 10.3847/1538-4357/ab5114

Parker Data Used; solar flares; Plasma physics; 1496; 2089; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics

Electron Energy Partition across Interplanetary Shocks. II. Statistics

A statistical analysis of 15,210 electron velocity distribution function (VDF) fits, observed within \textpm2 hr of 52 interplanetary (IP) shocks by the Wind spacecraft near 1 au, is presented. This is the second in a three-part series on electron VDFs near IP shocks. The electron velocity moment statistics for the dense, low-energy core, tenuous, hot halo, and field-aligned beam/strahl are a statistically significant list of values illustrated with both histograms and tabular lists for reference and baselines in future w ...

Wilson, Lynn; Chen, Li-Jen; Wang, Shan; Schwartz, Steven; Turner, Drew; Stevens, Michael; Kasper, Justin; Osmane, Adnane; Caprioli, Damiano; Bale, Stuart; Pulupa, Marc; Salem, Chadi; Goodrich, Katherine;

Published by: The Astrophysical Journal Supplement Series      Published on: 12/2019

YEAR: 2019     DOI: 10.3847/1538-4365/ab5445

Astrophysics - Solar and Stellar Astrophysics; Interplanetary particle acceleration; Interplanetary shocks; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; Plasma astrophysics; Plasma physics; Solar coronal mass ejection shocks; Solar coronal mass ejections; Solar Probe Plus; Solar wind; Space plasmas

A Laboratory Model for Magnetized Stellar Winds

Peterson, Ethan;

Published by:       Published on: 01/2019

YEAR: 2019     DOI:

Plasma physics

2018

The Interior Structure, Dynamics, and Heliospheric Impact of Reconnection-Driven Solar Coronal Hole Jets

Roberts, Merrill;

Published by:       Published on: 01/2018

YEAR: 2018     DOI:

Physics; Astrophysics; Plasma physics



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