PSP Bibliography





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Found 22 entries in the Bibliography.


Showing entries from 1 through 22


2022

Density Compressions at Magnetic Switchbacks Associated With Fast Plasma: A Superposed Epoch Analysis

Many magnetic field switchbacks were detected by the Parker Solar Probe and their origin remains a puzzle. We did a superposed epoch analysis (SEA) to investigate the plasma characteristics in the vicinity of switchbacks and their radial evolution. SEA is good way to get the statistical average features of certain types of events that have obvious boundaries and different durations. For 55 events ranging from 1 to 30 min, the SEA results show that a small parcel of plasma is piling up in front of the reversed field, and ...

Liu, Ruoyan; Liu, Yong; Huang, Jia; Huang, Zhaohui; Klecker, Berndt; Wang, Chi;

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

YEAR: 2022     DOI: 10.1029/2022JA030382

Parker Data Used; Solar wind; magnetic fields; switchbacks

Density Compressions at Magnetic Switchbacks Associated With Fast Plasma: A Superposed Epoch Analysis

Many magnetic field switchbacks were detected by the Parker Solar Probe and their origin remains a puzzle. We did a superposed epoch analysis (SEA) to investigate the plasma characteristics in the vicinity of switchbacks and their radial evolution. SEA is good way to get the statistical average features of certain types of events that have obvious boundaries and different durations. For 55 events ranging from 1 to 30 min, the SEA results show that a small parcel of plasma is piling up in front of the reversed field, and ...

Liu, Ruoyan; Liu, Yong; Huang, Jia; Huang, Zhaohui; Klecker, Berndt; Wang, Chi;

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

YEAR: 2022     DOI: 10.1029/2022JA030382

Parker Data Used; Solar wind; magnetic fields; switchbacks

Analysis of the Distribution, Rotation and Scale Characteristics of Solar Wind Switchbacks: Comparison between the First and Second Encounters of Parker Solar Probe

The S-shaped magnetic structure in the solar wind formed by the twisting of magnetic field lines is called a switchback, whose main characteristics are the reversal of the magnetic field and the significant increase in the solar wind radial velocity. We identify 242 switchbacks during the first two encounters of Parker Solar Probe. Statistics methods are applied to analyze the distribution and the rotation angle and direction of the magnetic field rotation of the switchbacks. The diameter of switchbacks is estimated with a m ...

Meng, Ming-Ming; Liu, Ying; Chen, Chong; Wang, Rui;

Published by: Research in Astronomy and Astrophysics      Published on: mar

YEAR: 2022     DOI: 10.1088/1674-4527/ac49e4

Parker Data Used; ISM: magnetic fields; methods: statistical; (Sun:) solar wind; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

Categorizing MHD Discontinuities in the Inner Heliosphere by Utilizing the PSP Mission

The interplanetary discontinuities (IDs) have been widely observed in astrophysical and space plasmas, while their characteristics and evolutions within 0.3 AU are still unclear due to the limitation of spacecraft orbits in previous missions. Here, we report three ID events, including a rotational discontinuity (RD), a tangential discontinuity (TD), and a suspected contact discontinuity (CD), detected by the Parker Solar Probe in a previously unexplored region of the heliosphere as close to the Sun as 0.13 AU. By the combina ...

Liu, Y.~Y.; Fu, H.~S.; Cao, J.~B.; Yu, Y.; Liu, C.~M.; Wang, Z.; Guo, Z.~Z.; He, R.~J.;

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

YEAR: 2022     DOI: 10.1029/2021JA029983

Parker Data Used

Categorizing MHD Discontinuities in the Inner Heliosphere by Utilizing the PSP Mission

The interplanetary discontinuities (IDs) have been widely observed in astrophysical and space plasmas, while their characteristics and evolutions within 0.3 AU are still unclear due to the limitation of spacecraft orbits in previous missions. Here, we report three ID events, including a rotational discontinuity (RD), a tangential discontinuity (TD), and a suspected contact discontinuity (CD), detected by the Parker Solar Probe in a previously unexplored region of the heliosphere as close to the Sun as 0.13 AU. By the combina ...

Liu, Y.~Y.; Fu, H.~S.; Cao, J.~B.; Yu, Y.; Liu, C.~M.; Wang, Z.; Guo, Z.~Z.; He, R.~J.;

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

YEAR: 2022     DOI: 10.1029/2021JA029983

Parker Data Used

Double-power-law Feature of Energetic Particles Accelerated at Coronal Shocks

Recent observations have shown that in many large solar energetic particle (SEP) events the event-integrated differential spectra resemble double power laws. We perform numerical modeling of particle acceleration at coronal shocks propagating through a streamer-like magnetic field by solving the Parker transport equation, including protons and heavier ions. We find that for all ion species the energy spectra integrated over the simulation domain can be described by a double power law, and the break energy depends on the ion ...

Yu, Feiyu; Kong, Xiangliang; Guo, Fan; Liu, Wenlong; Jiang, Zelong; Chen, Yao; Giacalone, Joe;

Published by: \apjl      Published on: feb

YEAR: 2022     DOI: 10.3847/2041-8213/ac4cb3

1491; 1517; 1997; 1486; Astrophysics - Solar and Stellar Astrophysics

Plasma Parameters From Quasi-Thermal Noise Observed by Parker Solar Probe: A New Model for the Antenna Response

Quasi-Thermal Noise (QTN) spectroscopy is a reliable diagnostic routinely used for measuring electron density and temperature in space plasmas. The observed spectrum depends on both antenna geometry and plasma kinetic properties. Parker solar probe (PSP), launched in 2018, is equipped with an antenna system consisting of two linear dipoles with a significant gap between the antenna arms. Such a configuration, not utilized on previous missions, cannot be completely described by current models of the antenna response function. ...

c, Mihailo; c, Antonije; Klein, Kristopher; c, Milan; Issautier, Karine; Liu, Mingzhe; Pulupa, Marc; Bale, Stuart; Halekas, Jasper; McManus, Michael;

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

YEAR: 2022     DOI: 10.1029/2021JA030182

Parker Data Used; quasi-thermal noise; Solar wind; antenna response

2021

Nonlinear Wave-Wave Coupling Related to Whistler-mode and Electron Bernstein Waves Observed by the Parker Solar Probe

We report nonlinear wave-wave coupling related to whistler-mode or electron Bernstein waves in the near-Sun slow solar wind with Parker Solar Probe (PSP) data. Prominent plasma wave power enhancements usually exist near the electron gyrofrequency (f$_ce$), identified as electrostatic whistler-mode and electron Bernstein waves (Malaspina et al. 2020). We find that these plasma waves near f$_ce$ typically have a harmonic spectral structure and further classify them into three types identified by the characteristics of wave fre ...

Ma, Jiuqi; Gao, Xinliang; Yang, Zhongwei; Tsurutani, Bruce; Liu, Mingzhe; Lu, Quanming; Wang, Shui;

Published by: \apj      Published on: sep

YEAR: 2021     DOI: 10.3847/1538-4357/ac0ef4

Solar wind; 1534

Macro Magnetic Holes Caused by Ripples in Heliospheric Current Sheet from Coordinated Imaging and Parker Solar Probe Observations

Macro magnetic holes (MMHs), which are significant magnetic field decreases in the solar wind lasting tens of minutes, were found during the first four orbits of the Parker Solar Probe (PSP). We performed a detailed analysis of the 2020 January 30 event and found the possible cause of the MMH using coordinated remote sensing observations from STEREO A and PSP in situ measurements. The results indicate that an MMH represents a brief encounter with the rippled heliospheric current sheet (HCS). Out of the data from the first fo ...

Chen, Chong; Liu, Ying; Hu, Huidong;

Published by: \apj      Published on: nov

YEAR: 2021     DOI: 10.3847/1538-4357/ac1b2b

Parker Data Used; Solar wind; Heliosphere; Solar magnetic fields; 1534; 711; 1503

Solar wind energy flux observations in the inner heliosphere: First results from Parker Solar Probe

\ Aims: We investigate the solar wind energy flux in the inner heliosphere using 12-day observations around each perihelion of Encounter One (E01), Two (E02), Four (E04), and Five (E05) of Parker Solar Probe (PSP), respectively, with a minimum heliocentric distance of 27.8 solar radii (R$_\ensuremath\odot$). \ Methods: Energy flux was calculated based on electron parameters (density n$_e$, core electron temperature T$_c$, and suprathermal electron temperature T$_h$) obtained from the simplified analysis of the plasma quasi-t ...

Liu, M.; Issautier, K.; Meyer-Vernet, N.; Moncuquet, M.; Maksimovic, M.; Halekas, J.; Huang, J.; Griton, L.; Bale, S.; Bonnell, J.; Case, A.; Goetz, K.; Harvey, P.; Kasper, J.; MacDowall, R.; Malaspina, D.; Pulupa, M.; Stevens, M.;

Published by: Astronomy and Astrophysics      Published on: jun

YEAR: 2021     DOI: "10.1051/0004-6361/202039615"

Parker Data Used; parker solar probe; Solar Probe Plus

Analysis of Magnetohydrodynamic Perturbations in the Radial-field Solar Wind from Parker Solar Probe Observations

We report analysis of sub-Alfv\ enic magnetohydrodynamic (MHD) perturbations in the low-\ensuremath\beta radial-field solar wind employing the Parker Solar Probe spacecraft data from 2018 October 31 to November 12. We calculate wavevectors using the singular value decomposition method and separate MHD perturbations into three eigenmodes (Alfv\ en, fast, and slow modes) to explore the properties of sub-Alfv\ enic perturbations and the role of compressible perturbations in solar wind heating. The MHD perturbations show a high ...

Zhao, S.~Q.; Yan, Huirong; Liu, Terry; Liu, Mingzhe; Shi, Mijie;

Published by: \apj      Published on: dec

YEAR: 2021     DOI: 10.3847/1538-4357/ac2ffe

Parker Data Used; 1534; 830; 1964; 1544; 1636; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics

Analysis of Magnetohydrodynamic Perturbations in the Radial-field Solar Wind from Parker Solar Probe Observations

We report analysis of sub-Alfv\ enic magnetohydrodynamic (MHD) perturbations in the low-\ensuremath\beta radial-field solar wind employing the Parker Solar Probe spacecraft data from 2018 October 31 to November 12. We calculate wavevectors using the singular value decomposition method and separate MHD perturbations into three eigenmodes (Alfv\ en, fast, and slow modes) to explore the properties of sub-Alfv\ enic perturbations and the role of compressible perturbations in solar wind heating. The MHD perturbations show a high ...

Zhao, S.~Q.; Yan, Huirong; Liu, Terry; Liu, Mingzhe; Shi, Mijie;

Published by: \apj      Published on: dec

YEAR: 2021     DOI: 10.3847/1538-4357/ac2ffe

Parker Data Used; 1534; 830; 1964; 1544; 1636; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics

A Provably Positive, Divergence-free Constrained Transport Scheme for the Simulation of Solar Wind

In this paper, we present a provably positive, divergence-free constrained transport (CT) scheme to simulate the steady-state solar wind ambient with the three-dimensional magnetohydrodynamics numerical model. The positivity can be lost in two ways: one way is in the reconstruction process, and the other is in the updating process when the variables are advanced to the next time step. We adopt a self-adjusting strategy to bring the density and pressure into the permitted range in the reconstruction process, and use modified ...

Zhang, Man; Feng, Xueshang; Liu, Xiaojing; Yang, Liping;

Published by: \apjs      Published on: dec

YEAR: 2021     DOI: 10.3847/1538-4365/ac1e29

Parker Data Used; Solar wind; Magnetohydrodynamical simulations; 1534; 1966

Characteristics of Interplanetary Discontinuities in the Inner Heliosphere Revealed by Parker Solar Probe

We present a statistical analysis for the characteristics and spatial evolution of the interplanetary discontinuities (IDs) in the solar wind, from 0.13-0.9 au, by using the Parker Solar Probe measurements on Orbits 4 and 5. We collected 3948 IDs, including 2511 rotational discontinuities (RDs) and 557 tangential discontinuities (TDs), with the remnant unidentified. The statistical results show that (1) the ID occurrence rate decreases from 200 events per day at 0.13 au to 1 event per day at 0.9 au, following a spatial scali ...

Liu, Y.~Y.; Fu, H.~S.; Cao, J.~B.; Liu, C.~M.; Wang, Z.; Guo, Z.~Z.; Xu, Y.; Bale, S.~D.; Kasper, J.~C.;

Published by: \apj      Published on: aug

YEAR: 2021     DOI: 10.3847/1538-4357/ac06a1

Interplanetary discontinuities; Solar wind; interplanetary magnetic fields; Magnetohydrodynamics; 820; 1534; 824; 1964; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics; Parker Data Used

Characteristics of Interplanetary Discontinuities in the Inner Heliosphere Revealed by Parker Solar Probe

We present a statistical analysis for the characteristics and spatial evolution of the interplanetary discontinuities (IDs) in the solar wind, from 0.13-0.9 au, by using the Parker Solar Probe measurements on Orbits 4 and 5. We collected 3948 IDs, including 2511 rotational discontinuities (RDs) and 557 tangential discontinuities (TDs), with the remnant unidentified. The statistical results show that (1) the ID occurrence rate decreases from 200 events per day at 0.13 au to 1 event per day at 0.9 au, following a spatial scali ...

Liu, Y.~Y.; Fu, H.~S.; Cao, J.~B.; Liu, C.~M.; Wang, Z.; Guo, Z.~Z.; Xu, Y.; Bale, S.~D.; Kasper, J.~C.;

Published by: \apj      Published on: aug

YEAR: 2021     DOI: 10.3847/1538-4357/ac06a1

Interplanetary discontinuities; Solar wind; interplanetary magnetic fields; Magnetohydrodynamics; 820; 1534; 824; 1964; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics; Parker Data Used

A New View of the Solar Interface Region from the Interface Region Imaging Spectrograph (IRIS)

The Interface Region Imaging Spectrograph (IRIS) has been obtaining near- and far-ultraviolet images and spectra of the solar atmosphere since July 2013. IRIS is the highest resolution observatory to provide seamless coverage of spectra and images from the photosphere into the low corona. The unique combination of near- and far-ultraviolet spectra and images at sub-arcsecond resolution and high cadence allows the tracing of mass and energy through the critical interface between the surface and the corona or solar wind. IRIS ...

De Pontieu, Bart; Polito, Vanessa; Hansteen, Viggo; Testa, Paola; Reeves, Katharine; Antolin, Patrick; Nóbrega-Siverio, Daniel; Kowalski, Adam; Martinez-Sykora, Juan; Carlsson, Mats; McIntosh, Scott; Liu, Wei; Daw, Adrian; Kankelborg, Charles;

Published by: Solar Physics      Published on: 05/2021

YEAR: 2021     DOI: 10.1007/s11207-021-01826-0

Heating; chromospheric; coronal; chromosphere; models; active; Corona; magnetic fields; chromosphere; Instrumentation and data management; Spectrum; ultraviolet; Astrophysics - Solar and Stellar Astrophysics

Identification of Active Magnetic Reconnection Using Magnetic Flux Transport in Plasma Turbulence

Magnetic reconnection has been suggested to play an important role in the dynamics and energetics of plasma turbulence by spacecraft observations, simulations, and theory over the past two decades, and recently, by magnetosheath observations of MMS. A new method based on magnetic flux transport (MFT) has been developed to identify reconnection activity in turbulent plasmas. This method is applied to a gyrokinetic simulation of two-dimensional (2D) plasma turbulence. Results on the identification of three active reconnection ...

Li, Tak; Liu, Yi-Hsin; Qi, Yi;

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

YEAR: 2021     DOI: 10.3847/2041-8213/abea0b

Solar magnetic reconnection; Space plasmas; interplanetary turbulence; 1504; 1544; 830

Determination of Solar Wind Angular Momentum and Alfv\ en Radius from Parker Solar Probe Observations

Liu, Ying; Chen, Chong; Stevens, Michael; Liu, Mingzhe;

Published by: \apjl      Published on: 02/2021

YEAR: 2021     DOI: 10.3847/2041-8213/abe38e

Fundamental parameters of stars; Solar rotation; Solar wind; 555; 1524; 1534

Determination of Solar Wind Angular Momentum and Alfv\ en Radius from Parker Solar Probe Observations

Liu, Ying; Chen, Chong; Stevens, Michael; Liu, Mingzhe;

Published by: \apjl      Published on: 02/2021

YEAR: 2021     DOI: 10.3847/2041-8213/abe38e

Fundamental parameters of stars; Solar rotation; Solar wind; 555; 1524; 1534

2020

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

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

Using Stereoscopic Observations of Cometary Plasma Tails to Infer Solar Wind Speed

Detection of the solar wind speed near the Sun is significant in understanding the heating and acceleration of the solar wind. Cometary plasma tails have long been used as natural probes for solar wind speed; previous solar wind speed estimates via plasma tails, however, were based on comet images from a single viewpoint, and the projection effect may influence the result. Using stereoscopic observations from the Solar Terrestrial Relations Observatory and the Solar and Heliospheric Observatory, we three-dimensionally rec ...

Cheng, Long; Zhang, Quanhao; Wang, Yuming; Li, Xiaolei; Liu, Rui;

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

YEAR: 2020     DOI: 10.3847/1538-4357/ab93b6

1534; parker solar probe; Solar Probe Plus



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