PSP Bibliography





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Found 272 entries in the Bibliography.


Showing entries from 251 through 272


2016

MEASURING COLLISIONLESS DAMPING IN HELIOSPHERIC PLASMAS USING FIELD\textendashPARTICLE CORRELATIONS

An innovative field-particle correlation technique is proposed that uses single-point measurements of the electromagnetic fields and particle velocity distribution functions to investigate the net transfer of energy from fields to particles associated with the collisionless damping of turbulent fluctuations in weakly collisional plasmas, such as the solar wind. In addition to providing a direct estimate of the local rate of energy transfer between fields and particles, it provides vital new information about the distribut ...

Klein, K.; Howes, G.;

Published by: The Astrophysical Journal      Published on: 08/2016

YEAR: 2016     DOI: 10.3847/2041-8205/826/2/L30

Astrophysics - Solar and Stellar Astrophysics; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; plasmas; Solar Probe Plus; Solar wind; turbulence; waves

An Analysis of Interplanetary Solar Radio Emissions Associated with a Coronal Mass Ejection

Krupar, V.; Eastwood, J.~P.; Kruparova, O.; Santolik, O.; Soucek, J.; c, Magdaleni\; Vourlidas, A.; Maksimovic, M.; Bonnin, X.; Bothmer, V.; Mrotzek, N.; Pluta, A.; Barnes, D.; Davies, J.~A.; Oliveros, J.~C.; Bale, S.~D.;

Published by: \apjl      Published on: 06/2016

YEAR: 2016     DOI: 10.3847/2041-8205/823/1/L5

Parker Data Used; solar─terrestrial relations; Sun: coronal mass ejections: CMEs; Sun: radio radiation; Astrophysics - Solar and Stellar Astrophysics

EVOLUTION OF THE PROTON VELOCITY DISTRIBUTION DUE TO STOCHASTIC HEATING IN THE NEAR-SUN SOLAR WIND

We investigate how the proton distribution function evolves when the protons undergo stochastic heating by strong, low-frequency, Alfv\ en-wave turbulence under the assumption that β is small. We apply our analysis to protons undergoing stochastic heating in the supersonic fast solar wind and obtain proton distributions at heliocentric distances ranging from 4 to 30 solar radii. We find that the proton distribution develops non-Gaussian structure with a flat core and steep tail. For r\gt 5 RS, the proton distr ...

Klein, Kristopher; Chandran, Benjamin;

Published by: The Astrophysical Journal      Published on: 03/2016

YEAR: 2016     DOI: 10.3847/0004-637X/820/1/47

Astrophysics - Solar and Stellar Astrophysics; parker solar probe; Physics - Plasma Physics; plasmas; Solar Probe Plus; Solar wind; turbulence; waves

2015

North-south asymmetry in the magnetic deflection of polar coronal hole jets

o, Nistic\; Zimbardo, G.; Patsourakos, S.; Bothmer, V.; Nakariakov, V.~M.;

Published by: \aap      Published on: 11/2015

YEAR: 2015     DOI: 10.1051/0004-6361/201525731

Parker Data Used; Sun: corona; Sun: magnetic fields; methods: observational; Astrophysics - Solar and Stellar Astrophysics

3D ELECTRON DENSITY DISTRIBUTIONS IN THE SOLAR CORONA DURING SOLAR MINIMA: ASSESSMENT FOR MORE REALISTIC SOLAR WIND MODELING

Knowledge of the electron density distribution in the solar corona put constraints on the magnetic field configurations for coronal modeling and on initial conditions for solar wind modeling. We work with polarized SOHO/LASCO-C2 images from the last two recent minima of solar activity (1996-1997 and 2008-2010), devoid of coronal mass ejections. The goals are to derive the 4D electron density distributions in the corona by applying a newly developed time-dependent tomographic reconstruction method and to compare the result ...

de Patoul, Judith; Foullon, Claire; Riley, Pete;

Published by: The Astrophysical Journal      Published on: 11/2015

YEAR: 2015     DOI: 10.1088/0004-637X/814/1/68

Astrophysics - Solar and Stellar Astrophysics; parker solar probe; Solar Probe Plus; Solar wind; Sun: corona; Sun: evolution; Sun: fundamental parameters; Sun: rotation

Intermittency and Alignment in Strong RMHD Turbulence

Chandran, B.~D.~G.; Schekochihin, A.~A.; Mallet, A.;

Published by: \apj      Published on: 07/2015

YEAR: 2015     DOI: 10.1088/0004-637X/807/1/39

Parker Data Used; magnetohydrodynamics: MHD; plasmas; Solar wind; Sun: chromosphere; Sun: corona; turbulence; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

Resistive Magnetohydrodynamics Simulations of the Ideal Tearing Mode

Landi, S.; Del Zanna, L.; Papini, E.; Pucci, F.; Velli, M.;

Published by: \apj      Published on: 06/2015

YEAR: 2015     DOI: 10.1088/0004-637X/806/1/131

Parker Data Used; magnetohydrodynamics: MHD; magnetic reconnection; methods: numerical; plasmas; Sun: magnetic fields; Astrophysics - Solar and Stellar Astrophysics

Localized enhancements of energetic particles at oblique collisionless shocks

Fraschetti, F.; Giacalone, J.;

Published by: \mnras      Published on: 04/2015

YEAR: 2015     DOI: 10.1093/mnras/stv247

Parker Data Used; turbulence; cosmic rays; ISM: magnetic fields; Astrophysics - High Energy Astrophysical Phenomena; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics

A MODIFIED VERSION OF TAYLOR\textquoterightS HYPOTHESIS FOR SOLAR PROBE PLUS OBSERVATIONS

The Solar Probe Plus (SPP) spacecraft will explore the near-Sun environment, reaching heliocentric distances less than 10 R. Near Earth, spacecraft measurements of fluctuating velocities and magnetic fields taken in the time domain are translated into information about the spatial structure of the solar wind via Taylor\textquoterights \textquotedblleftfrozen turbulence\textquotedblright hypothesis. Near the perihelion of SPP, however, the solar-wind speed is comparable to the Alfv\ en speed, and Taylor\text ...

Klein, Kristopher; Perez, Jean; Verscharen, Daniel; Mallet, Alfred; Chandran, Benjamin;

Published by: The Astrophysical Journal      Published on: 03/2015

YEAR: 2015     DOI: 10.1088/2041-8205/801/1/L18

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; plasmas; Solar Probe Plus; Solar wind; Sun: corona; turbulence

2014

Application of a Solar Wind Model Driven by Turbulence Dissipation to a 2D Magnetic Field Configuration

Lionello, Roberto; Velli, Marco; Downs, Cooper; Linker, Jon; c, Zoran;

Published by: \apj      Published on: 12/2014

YEAR: 2014     DOI: 10.1088/0004-637X/796/2/111

Parker Data Used; magnetohydrodynamics: MHD; Solar wind; turbulence; waves; Astrophysics - Solar and Stellar Astrophysics

DYNAMICS OF DOUBLE LAYERS, ION ACCELERATION, AND HEAT FLUX SUPPRESSION DURING SOLAR FLARES

Observations of flare-heated electrons in the corona typically suggest confinement of electrons. The confinement mechanism, however, remains unclear. The transport of coronal hot electrons into ambient plasma was recently investigated by particle-in-cell (PIC) simulations. Electron transport was significantly suppressed by the formation of a highly localized, nonlinear electrostatic potential in the form of a double layer (DL). In this work large-scale PIC simulations are performed to explore the dynamics of DLs in larger ...

Li, T.; Drake, J.; Swisdak, M.;

Published by: The Astrophysical Journal      Published on: 09/2014

YEAR: 2014     DOI: 10.1088/0004-637X/793/1/7

acceleration of particles; Astrophysics - Solar and Stellar Astrophysics; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; Solar Probe Plus; Solar wind; Sun: corona; Sun: flares

THE VIOLATION OF THE TAYLOR HYPOTHESIS IN MEASUREMENTS OF SOLAR WIND TURBULENCE

Motivated by the upcoming Solar Orbiter and Solar Probe Plus missions, qualitative and quantitative predictions are made for the effects of the violation of the Taylor hypothesis on the magnetic energy frequency spectrum measured in the near-Sun environment. The synthetic spacecraft data method is used to predict observational signatures of the violation for critically balanced Alfv\ enic turbulence or parallel fast/whistler turbulence. The violation of the Taylor hypothesis can occur in the slow flow regime, leading to a ...

Klein, K.; Howes, G.; TenBarge, J.;

Published by: The Astrophysical Journal      Published on: 08/2014

YEAR: 2014     DOI: 10.1088/2041-8205/790/2/L20

Astrophysics - Solar and Stellar Astrophysics; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; plasmas; Solar Probe Plus; Solar wind; turbulence; waves

VALIDITY OF THE TAYLOR HYPOTHESIS FOR LINEAR KINETIC WAVES IN THE WEAKLY COLLISIONAL SOLAR WIND

The interpretation of single-point spacecraft measurements of solar wind turbulence is complicated by the fact that the measurements are made in a frame of reference in relative motion with respect to the turbulent plasma. The Taylor hypothesis\textemdashthat temporal fluctuations measured by a stationary probe in a rapidly flowing fluid are dominated by the advection of spatial structures in the fluid rest frame\textemdashis often assumed to simplify the analysis. But measurements of turbulence in upcoming missions, such ...

Howes, G.; Klein, K.; TenBarge, J.;

Published by: The Astrophysical Journal      Published on: 07/2014

YEAR: 2014     DOI: 10.1088/0004-637X/789/2/106

Astrophysics - Solar and Stellar Astrophysics; parker solar probe; Physics - Plasma Physics; Solar Probe Plus; Solar wind; turbulence

INBOUND WAVES IN THE SOLAR CORONA: A DIRECT INDICATOR OF ALFV\ EN SURFACE LOCATION

The tenuous supersonic solar wind that streams from the top of the corona passes through a natural boundary\textemdashthe Alfv\ en surface\textemdashthat marks the causal disconnection of individual packets of plasma and magnetic flux from the Sun itself. The Alfv\ en surface is the locus where the radial motion of the accelerating solar wind passes the radial Alfv\ en speed, and therefore any displacement of material cannot carry information back down into the corona. It is thus the natural outer boundary of the solar co ...

Deforest, C.; Howard, T.; McComas, D.;

Published by: The Astrophysical Journal      Published on: 06/2014

YEAR: 2014     DOI: 10.1088/0004-637X/787/2/124

Astrophysics - Solar and Stellar Astrophysics; parker solar probe; Solar Probe Plus; Solar wind; Sun: corona; Sun: fundamental parameters; techniques: image processing

Validating a Time-dependent Turbulence-driven Model of the Solar Wind

Lionello, Roberto; Velli, Marco; Downs, Cooper; Linker, Jon; c, Zoran; Verdini, Andrea;

Published by: \apj      Published on: 04/2014

YEAR: 2014     DOI: 10.1088/0004-637X/784/2/120

Parker Data Used; magnetohydrodynamics: MHD; Solar wind; turbulence; waves; Astrophysics - Solar and Stellar Astrophysics

Test-particle Acceleration in a Hierarchical Three-dimensional Turbulence Model

Dalena, S.; Rappazzo, A.~F.; Dmitruk, P.; Greco, A.; Matthaeus, W.~H.;

Published by: \apj      Published on: 03/2014

YEAR: 2014     DOI: 10.1088/0004-637X/783/2/143

Parker Data Used; acceleration of particles; magnetic reconnection; Sun: corona; turbulence; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

2013

Stochastic Heating, Differential Flow, and the Alpha-to-proton Temperature Ratio in the Solar Wind

Chandran, B.~D.~G.; Verscharen, D.; Quataert, E.; Kasper, J.~C.; Isenberg, P.~A.; Bourouaine, S.;

Published by: \apj      Published on: 10/2013

YEAR: 2013     DOI: 10.1088/0004-637X/776/1/45

Parker Data Used; plasmas; Solar wind; Sun: corona; turbulence; waves; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics

Current Sheets Formation in Tangled Coronal Magnetic Fields

Rappazzo, A.~F.; Parker, E.~N.;

Published by: \apjl      Published on: 08/2013

YEAR: 2013     DOI: 10.1088/2041-8205/773/1/L2

Parker Data Used; magnetohydrodynamics: MHD; Sun: corona; Sun: magnetic topology; Astrophysics - Solar and Stellar Astrophysics

Field Lines Twisting in a Noisy Corona: Implications for Energy Storage and Release, and Initiation of Solar Eruptions

Rappazzo, A.~F.; Velli, M.; Einaudi, G.;

Published by: \apj      Published on: 07/2013

YEAR: 2013     DOI: 10.1088/0004-637X/771/2/76

Parker Data Used; magnetohydrodynamics: MHD; Sun: corona; Sun: coronal mass ejections: CMEs; Sun: magnetic topology; turbulence; Astrophysics - Solar and Stellar Astrophysics

Evolution of the Solar Flare Energetic Electrons in the Inhomogeneous Inner Heliosphere

Solar flare accelerated electrons escaping into the interplanetary space and seen as type III solar radio bursts are often detected near the Earth. Using numerical simulations we consider the evolution of energetic electron spectrum in the inner heliosphere and near the Earth. The role of Langmuir wave generation, heliospheric plasma density fluctuations, and expansion of magnetic field lines on the electron peak flux and fluence spectra is studied to predict the electron properties as could be observed by Solar Orbiter a ...

Reid, Hamish; Kontar, Eduard;

Published by: Solar Physics      Published on: 07/2013

YEAR: 2013     DOI: 10.1007/s11207-012-0013-x

Astrophysics - Solar and Stellar Astrophysics; dynamics; Energetic particles; flares; parker solar probe; plasma; propagation; Radio bursts; Solar Probe Plus; Solar wind; type III; waves

2012

Interchange Reconnection in a Turbulent Corona

Rappazzo, A.~F.; Matthaeus, W.~H.; Ruffolo, D.; Servidio, S.; Velli, M.;

Published by: \apjl      Published on: 10/2012

YEAR: 2012     DOI: 10.1088/2041-8205/758/1/L14

Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; Solar wind; Sun: corona; Sun: magnetic topology; turbulence; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

Intermittency and Local Heating in the Solar Wind

Osman, K.~T.; Matthaeus, W.~H.; Wan, M.; Rappazzo, A.~F.;

Published by: \prl      Published on: 06/2012

YEAR: 2012     DOI: 10.1103/PhysRevLett.108.261102

Parker Data Used; 96.50.Ci; 52.50.-b; 94.05.Lk; 95.30.Qd; Solar wind plasma; sources of solar wind; Plasma production and heating; turbulence; Magnetohydrodynamics and plasmas; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics



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