| 2021 |
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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
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| 2020 |
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Bi-directional streaming of particles accelerated at the STEREO-A shock on 2008 March 9
Fraschetti, F.; Giacalone, J.;
Published by: \mnras Published on: 12/2020
YEAR: 2020 DOI: 10.1093/mnras/staa3021
Parker Data Used; acceleration of particles; shock waves; turbulence; Astrophysics - High Energy Astrophysical Phenomena; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics
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Spectral signatures of recursive magnetic field reconnection
Tenerani, A.; Velli, M.;
Published by: \mnras Published on: 01/2020
YEAR: 2020 DOI: 10.1093/mnras/stz3310
Parker Data Used; magnetic reconnection; MHD; plasmas; turbulence; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics
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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
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| 2019 |
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Self-induced Scattering of Strahl Electrons in the Solar Wind
We investigate the scattering of strahl electrons by microinstabilities as a mechanism for creating the electron halo in the solar wind. We develop a mathematical framework for the description of electron-driven microinstabilities and discuss the associated physical mechanisms. We find that an instability of the oblique fast-magnetosonic/whistler (FM/W) mode is the best candidate for a microinstability that scatters strahl electrons into the halo. We derive approximate analytic expressions for the FM/W instability thresho ...
Verscharen, Daniel; Chandran, Benjamin; Jeong, Seong-Yeop; Salem, Chadi; Pulupa, Marc; Bale, Stuart;
Published by: The Astrophysical Journal Published on: 12/2019
YEAR: 2019 DOI: 10.3847/1538-4357/ab4c30
Astrophysics - Solar and Stellar Astrophysics; instabilities; parker solar probe; Physics - Geophysics; Physics - Plasma Physics; Physics - Space Physics; plasmas; Solar Probe Plus; Solar wind; Sun: corona; turbulence; waves
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Contextual Predictions for the Parker Solar Probe . I. Critical Surfaces and Regions
The solar corona and young solar wind may be characterized by critical surfaces\textemdashthe sonic, Alfv\ en, and first plasma-β unity surfaces\textemdashthat demarcate regions where the solar wind flow undergoes certain crucial transformations. Global numerical simulations and remote sensing observations offer a natural mode for the study of these surfaces at large scales, thus providing valuable context for the high-resolution in situ measurements expected from the recently launched Parker Solar Probe (PSP). The prese ...
Chhiber, Rohit; Usmanov, Arcadi; Matthaeus, William; Goldstein, Melvyn;
Published by: The Astrophysical Journal Supplement Series Published on: 03/2019
YEAR: 2019 DOI: 10.3847/1538-4365/ab0652
Astrophysics - Solar and Stellar Astrophysics; magnetohydrodynamics: MHD; Parker Data Used; parker solar probe; Physics - Space Physics; Solar Probe Plus; Solar wind; Sun: corona; turbulence
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Dissipation Scale Lengths of Solar Wind Turbulence
Raja, Sasikumar; Subramanian, Prasad; Ingale, Madhusudan; Ramesh, R.;
Published by: \apj Published on: 02/2019
YEAR: 2019 DOI: 10.3847/1538-4357/aafd33
occultations; scattering; Solar wind; Sun: corona; turbulence; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics
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Inherentness of Non-stationarity in Solar Wind
Jagarlamudi, Vamsee; de Wit, Thierry; Krasnoselskikh, Vladimir; Maksimovic, Milan;
Published by: \apj Published on: 01/2019
YEAR: 2019 DOI: 10.3847/1538-4357/aaef2e
Parker Data Used; magnetic fields; Solar wind; turbulence
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Does Turbulence Turn off at the Alfv\ en Critical Surface?
The\ Parker Solar Probe\ (PSP) will eventually reach and cross the Alfv\ en point or surface as it provides us with direct in situ measurements of the solar atmosphere. The Alfv\ en surface is the location at which the large-scale bulk solar wind speed\  \ and the Alfv\ en speed\  Adhikari, L.; Zank, G.; Zhao, L.-L.;
Published by: The Astrophysical Journal Published on: 01/2019
YEAR: 2019 DOI: 10.3847/1538-4357/ab141c
magnetohydrodynamics (MHD); parker solar probe; turbulence
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The Fluid-like and Kinetic Behavior of Kinetic Alfv\ en Turbulence in Space Plasma
Kinetic Alfv\ en waves (KAWs) are the short-wavelength extension of the magnetohydrodynamics Alfv\ en-wave branch in the case of highly oblique propagation with respect to the background magnetic field. Observations of space plasma show that small-scale turbulence is mainly KAW-like. We apply two theoretical approaches, a collisional two-fluid theory and a collisionless linear kinetic theory, to obtain predictions for the KAW polarizations depending on\ β\ p\ (the ratio of the proton th ...
Wu, Honghong; Verscharen, Daniel; Wicks, Robert; Chen, Christopher; He, Jiansen; Nicolaou, Georgios;
Published by: The Astrophysical Journal Published on: 01/2019
YEAR: 2019 DOI: 10.3847/1538-4357/aaef77
magnetohydrodynamics: MHD; plasmas; solar-terrestrial relations; turbulence; waves; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics
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| 2018 |
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On slow solar wind with high Alfv\ enicity: from composition and microphysics to spectral properties
Alfv\ enic fluctuations are very common features in the solar wind and are found especially within the main portion of fast-wind streams while the slow wind usually is less Alfv\ enic and more variable. In general, the fast and slow winds show many differences, which span from the large-scale structure to small-scale phenomena, including also a different turbulent behaviour. Recent studies, however, have shown that even the slow wind can sometimes be highly Alfv\ enic, with fluctuations as large as those of the fast wind. ...
D’Amicis, Raffaella; Matteini, Lorenzo; Bruno, Roberto;
Published by: Monthly Notices of the Royal Astronomical Society Published on: 3/2019
YEAR: 2018 DOI: 10.1093/mnras/sty3329
Astrophysics - Solar and Stellar Astrophysics; methods: data analysis; parker solar probe; Physics - Data Analysis; Physics - Plasma Physics; Physics - Space Physics; Solar Probe Plus; Solar wind; Statistics and Probability; turbulence
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Dependence of Coronal Loop Temperature on Loop Length and Magnetic Field Strength
Dahlburg, R.~B.; Einaudi, G.; Ugarte-Urra, I.; Rappazzo, A.~F.; Velli, M.;
Published by: \apj Published on: 12/2018
YEAR: 2018 DOI: 10.3847/1538-4357/aae535
Parker Data Used; magnetohydrodynamics: MHD; Sun: activity; Sun: corona; turbulence
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Higher-Order Turbulence Statistics in the Earth s Magnetosheath and the Solar Wind Using Magnetospheric Multiscale Observations
Chhiber, R.; Chasapis, A.; Bandyopadhyay, R.; Parashar, T.~N.; Matthaeus, W.~H.; Maruca, B.~A.; Moore, T.~E.; Burch, J.~L.; Torbert, R.~B.; Russell, C.~T.; Le Contel, O.; Argall, M.~R.; Fischer, D.; Mirioni, L.; Strangeway, R.~J.; Pollock, C.~J.; Giles, B.~L.; Gershman, D.~J.;
Published by: Journal of Geophysical Research (Space Physics) Published on: 12/2018
YEAR: 2018 DOI: 10.1029/2018JA025768
Parker Data Used; Solar wind; magnetosheath; turbulence; plasma turbulence; intermittency; multispacecraft technique
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Incompressive Energy Transfer in the Earth\textquoterights Magnetosheath: Magnetospheric Multiscale Observations
Bandyopadhyay, Riddhi; Chasapis, A.; Chhiber, R.; Parashar, T.~N.; Matthaeus, W.~H.; Shay, M.~A.; Maruca, B.~A.; Burch, J.~L.; Moore, T.~E.; Pollock, C.~J.; Giles, B.~L.; Paterson, W.~R.; Dorelli, J.; Gershman, D.~J.; Torbert, R.~B.; Russell, C.~T.; Strangeway, R.~J.;
Published by: \apj Published on: 10/2018
YEAR: 2018 DOI: 10.3847/1538-4357/aade04
Parker Data Used; magnetohydrodynamics: MHD; planets and satellites: magnetic fields; plasmas; Solar wind; turbulence; Physics - Space Physics
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Solar Wind Turbulence Studies Using MMS Fast Plasma Investigation Data
Bandyopadhyay, Riddhi; Chasapis, A.; Chhiber, R.; Parashar, T.~N.; Maruca, B.~A.; Matthaeus, W.~H.; Schwartz, S.~J.; Eriksson, S.; Le Contel, O.; Breuillard, H.; Burch, J.~L.; Moore, T.~E.; Pollock, C.~J.; Giles, B.~L.; Paterson, W.~R.; Dorelli, J.; Gershman, D.~J.; Torbert, R.~B.; Russell, C.~T.; Strangeway, R.~J.;
Published by: \apj Published on: 10/2018
YEAR: 2018 DOI: 10.3847/1538-4357/aade93
Parker Data Used; magnetohydrodynamics: MHD; methods: data analysis; methods: statistical; plasmas; Solar wind; turbulence; Physics - Space Physics
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The Steady Global Corona and Solar Wind: A Three-dimensional MHD Simulation with Turbulence Transport and Heating
Usmanov, Arcadi; Matthaeus, William; Goldstein, Melvyn; Chhiber, Rohit;
Published by: \apj Published on: 09/2018
YEAR: 2018 DOI: 10.3847/1538-4357/aad687
Parker Data Used; magnetohydrodynamics: MHD; methods: numerical; Solar wind; Sun: corona; Sun: rotation; turbulence
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Dependence of Kinetic Plasma Turbulence on Plasma \ensuremath\beta
Parashar, Tulasi; Matthaeus, William; Shay, Michael;
Published by: \apjl Published on: 09/2018
YEAR: 2018 DOI: 10.3847/2041-8213/aadb8b
Parker Data Used; plasmas; Solar wind; turbulence; Physics - Space Physics; Astrophysics - Astrophysics of Galaxies; Physics - Plasma Physics
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Subresolution activity in solar and stellar coronae from magnetic field line tangling
Rappazzo, A.~F.; Dahlburg, R.~B.; Einaudi, G.; Velli, M.;
Published by: \mnras Published on: 08/2018
YEAR: 2018 DOI: 10.1093/mnras/sty1132
Parker Data Used; MHD; turbulence; stars: activity; stars: coronae; stars: magnetic field; stars: solar-type; Astrophysics - Solar and Stellar Astrophysics
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Weakened Magnetization and Onset of Large-scale Turbulence in the Young Solar Wind\textemdashComparisons of Remote Sensing Observations with Simulation
Chhiber, Rohit; Usmanov, Arcadi; DeForest, Craig; Matthaeus, William; Parashar, Tulasi; Goldstein, Melvyn;
Published by: \apjl Published on: 04/2018
YEAR: 2018 DOI: 10.3847/2041-8213/aab843
Parker Data Used; magnetohydrodynamics: MHD; Solar wind; Sun: corona; turbulence
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| 2017 |
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Test Particle Energization and the Anisotropic Effects of Dynamical MHD Turbulence
alez, C.~A.; Dmitruk, P.; Mininni, P.~D.; Matthaeus, W.~H.;
Published by: \apj Published on: 11/2017
YEAR: 2017 DOI: 10.3847/1538-4357/aa8c02
Parker Data Used; acceleration of particles; magnetohydrodynamics: MHD; turbulence; Physics - Plasma Physics; Physics - Space Physics
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A Zone of Preferential Ion Heating Extends Tens of Solar Radii from the Sun
The extreme temperatures and nonthermal nature of the solar corona and solar wind arise from an unidentified physical mechanism that preferentially heats certain ion species relative to others. Spectroscopic indicators of unequal temperatures commence within a fraction of a solar radius above the surface of the Sun, but the outer reach of this mechanism has yet to be determined. Here we present an empirical procedure for combining interplanetary solar wind measurements and a modeled energy equation including Coulomb relax ...
Kasper, J.; Klein, K.; Weber, T.; Maksimovic, M.; Zaslavsky, A.; Bale, S.; Maruca, B.; Stevens, M.; Case, A.;
Published by: The Astrophysical Journal Published on: 11/2017
YEAR: 2017 DOI: 10.3847/1538-4357/aa84b1
acceleration of particles; Astrophysics - Solar and Stellar Astrophysics; magnetic fields; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; plasmas; Solar Probe Plus; Solar wind; Sun: corona; turbulence
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Coronal Heating Topology: The Interplay of Current Sheets and Magnetic Field Lines
Rappazzo, A.~F.; Matthaeus, W.~H.; Ruffolo, D.; Velli, M.; Servidio, S.;
Published by: \apj Published on: 07/2017
YEAR: 2017 DOI: 10.3847/1538-4357/aa79f2
Parker Data Used; magnetohydrodynamics: MHD; Solar wind; Sun: activity; Sun: corona; Sun: magnetic fields; turbulence; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics
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Evolving Waves and Turbulence in the Outer Corona and Inner Heliosphere: The Accelerating Expanding Box
Tenerani, Anna; Velli, Marco;
Published by: \apj Published on: 07/2017
YEAR: 2017 DOI: 10.3847/1538-4357/aa71b9
Parker Data Used; magnetohydrodynamics: MHD; methods: numerical; Solar wind; Sun: heliosphere; turbulence; waves; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics
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Cosmic-Ray Diffusion Coefficients throughout the Inner Heliosphere from a Global Solar Wind Simulation
Chhiber, R.; Subedi, P.; Usmanov, A.~V.; Matthaeus, W.~H.; Ruffolo, D.; Goldstein, M.~L.; Parashar, T.~N.;
Published by: \apjs Published on: 06/2017
YEAR: 2017 DOI: 10.3847/1538-4365/aa74d2
Parker Data Used; cosmic rays; diffusion; methods: numerical; Solar wind; turbulence; Physics - Space Physics
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Turbulent Transport in a Three-dimensional Solar Wind
Shiota, D.; Zank, G.~P.; Adhikari, L.; Hunana, P.; Telloni, D.; Bruno, R.;
Published by: \apj Published on: 03/2017
YEAR: 2017 DOI: 10.3847/1538-4357/aa60bc
Parker Data Used; magnetohydrodynamics: MHD; Solar wind; turbulence
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Charged Particle Diffusion in Isotropic Random Magnetic Fields
Subedi, P.; Sonsrettee, W.; Blasi, P.; Ruffolo, D.; Matthaeus, W.~H.; Montgomery, D.; Chuychai, P.; Dmitruk, P.; Wan, M.; Parashar, T.~N.; Chhiber, R.;
Published by: \apj Published on: 03/2017
YEAR: 2017 DOI: 10.3847/1538-4357/aa603a
Parker Data Used; astroparticle physics; cosmic rays; diffusion; magnetic fields; scattering; turbulence; Physics - Space Physics; Astrophysics - High Energy Astrophysical Phenomena; Astrophysics - Solar and Stellar Astrophysics
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| 2016 |
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Closed-field Coronal Heating Driven by Wave Turbulence
Downs, Cooper; Lionello, Roberto; c, Zoran; Linker, Jon; Velli, Marco;
Published by: \apj Published on: 12/2016
YEAR: 2016 DOI: 10.3847/0004-637X/832/2/180
Parker Data Used; magnetohydrodynamics: MHD; Sun: corona; Sun: magnetic fields; turbulence; Astrophysics - Solar and Stellar Astrophysics
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Simulations of Lateral Transport and Dropout Structure of Energetic Particles from Impulsive Solar Flares
Tooprakai, P.; Seripienlert, A.; Ruffolo, D.; Chuychai, P.; Matthaeus, W.~H.;
Published by: \apj Published on: 11/2016
YEAR: 2016 DOI: 10.3847/0004-637X/831/2/195
Parker Data Used; magnetic fields; Solar wind; Sun: particle emission; turbulence
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Propinquity of Current and Vortex Structures: Effects on Collisionless Plasma Heating
Parashar, Tulasi; Matthaeus, William;
Published by: \apj Published on: 11/2016
YEAR: 2016 DOI: 10.3847/0004-637X/832/1/57
Parker Data Used; plasmas; Solar wind; Sun: heliosphere; turbulence; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics
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Turbulence and Proton-Electron Heating in Kinetic Plasma
Matthaeus, William; Parashar, Tulasi; Wan, Minping; Wu, P.;
Published by: \apjl Published on: 08/2016
YEAR: 2016 DOI: 10.3847/2041-8205/827/1/L7
Parker Data Used; galaxies: ISM; ISM: kinematics and dynamics; plasmas; solar─terrestrial relations; Solar wind; turbulence
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Magnetic Field Line Random Walk in Isotropic Turbulence with Varying Mean Field
Sonsrettee, W.; Subedi, P.; Ruffolo, D.; Matthaeus, W.~H.; Snodin, A.~P.; Wongpan, P.; Chuychai, P.; Rowlands, G.; Vyas, S.;
Published by: \apjs Published on: 08/2016
YEAR: 2016 DOI: 10.3847/0067-0049/225/2/20
Parker Data Used; diffusion; magnetic fields; turbulence
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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
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Variance anisotropy in compressible 3-D MHD
Oughton, S.; Matthaeus, W.~H.; Wan, Minping; Parashar, Tulasi;
Published by: Journal of Geophysical Research (Space Physics) Published on: 06/2016
YEAR: 2016 DOI: 10.1002/2016JA022496
Parker Data Used; Solar wind; turbulence
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Variance Anisotropy in Kinetic Plasmas
Parashar, Tulasi; Oughton, Sean; Matthaeus, William; Wan, Minping;
Published by: \apj Published on: 06/2016
YEAR: 2016 DOI: 10.3847/0004-637X/824/1/44
Parker Data Used; plasmas; Solar wind; turbulence; waves
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Local modulation and trapping of energetic particles by coherent magnetic structures
Tessein, Jeffrey; Ruffolo, David; Matthaeus, William; Wan, Minping;
Published by: \grl Published on: 04/2016
YEAR: 2016 DOI: 10.1002/2016GL068045
Parker Data Used; Solar wind; turbulence; Energetic particles; intermittency; magnetic fields
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SOLAR WIND COLLISIONAL AGE FROM A GLOBAL MAGNETOHYDRODYNAMICS SIMULATION
Simple estimates of the number of Coulomb collisions experienced by the interplanetary plasma to the point of observation, I.e., the \textquotedblleftcollisional age\textquotedblright, can be usefully employed in the study of non-thermal features of the solar wind. Usually these estimates are based on local plasma properties at the point of observation. Here we improve the method of estimation of the collisional age by employing solutions obtained from global three-dimensional magnetohydrodynamics simulations. This enable ...
Chhiber, R; Usmanov, AV; Matthaeus, WH; Goldstein, ML;
Published by: The Astrophysical Journal Published on: 04/2016
YEAR: 2016 DOI: 10.3847/0004-637X/821/1/34
magnetohydrodynamics: MHD; methods: numerical; parker solar probe; plasmas; scattering; Solar Probe Plus; Solar wind; turbulence
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A Four-fluid MHD Model of the Solar Wind/Interstellar Medium Interaction with Turbulence Transport and Pickup Protons as Separate Fluid
Usmanov, Arcadi; Goldstein, Melvyn; Matthaeus, William;
Published by: \apj Published on: 03/2016
YEAR: 2016 DOI: 10.3847/0004-637X/820/1/17
Parker Data Used; ISM: magnetic fields; magnetohydrodynamics: MHD; methods: numerical; Solar wind; Sun: heliosphere; turbulence
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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
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| 2015 |
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Transition from Kinetic to MHD Behavior in a Collisionless Plasma
Parashar, Tulasi; Matthaeus, William; Shay, Michael; Wan, Minping;
Published by: \apj Published on: 10/2015
YEAR: 2015 DOI: 10.1088/0004-637X/811/2/112
Parker Data Used; magnetohydrodynamics: MHD; plasmas; Solar wind; turbulence
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ION-SCALE TURBULENCE IN THE INNER HELIOSPHERE: RADIAL DEPENDENCE
The evolution of the ion-scale plasma turbulence in the inner heliosphere is studied by associating the plasma parameters for hybrid-code turbulence simulations to the radial distance from the Sun via a Solar wind model based mapping procedure. Using a mapping based on a one-dimensional solar wind expansion model, the resulting ion-kinetic scale turbulence is related to the solar wind distance from the Sun. For this purpose the mapping is carried out for various values of ion beta that correspond to the heliocentric dista ...
Comişel, H.; Motschmann, U.; üchner, J.; Narita, Y.; Nariyuki, Y.;
Published by: The Astrophysical Journal Published on: 10/2015
YEAR: 2015 DOI: 10.1088/0004-637X/812/2/175
parker solar probe; plasmas; Solar Probe Plus; Solar wind; turbulence; waves
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KINETIC EVOLUTION OF CORONAL HOLE PROTONS BY IMBALANCED ION-CYCLOTRON WAVES: IMPLICATIONS FOR MEASUREMENTS BY SOLAR PROBE PLUS
We extend the kinetic guiding-center model of collisionless coronal hole protons presented in Isenberg \& Vasquez to consider driving by imbalanced spectra of obliquely propagating ion-cyclotron waves. These waves are assumed to be a small by-product of the imbalanced turbulent cascade to high perpendicular wavenumber, and their total intensity is taken to be 1\% of the total fluctuation energy. We also extend the kinetic solutions for the proton distribution function in the resulting fast solar wind to heliocentric d ...
Isenberg, Philip; Vasquez, Bernard;
Published by: The Astrophysical Journal Published on: 08/2015
YEAR: 2015 DOI: 10.1088/0004-637X/808/2/119
parker solar probe; plasmas; Solar Probe Plus; Solar wind; Sun: corona; turbulence; waves
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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
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Dynamical Field Line Connectivity in Magnetic Turbulence
Ruffolo, D.; Matthaeus, W.~H.;
Published by: \apj Published on: 06/2015
YEAR: 2015 DOI: 10.1088/0004-637X/806/2/233
Parker Data Used; diffusion; magnetic fields; turbulence
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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
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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
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Magnetic Field Line Random Walk in Isotropic Turbulence with Zero Mean Field
Sonsrettee, W.; Subedi, P.; Ruffolo, D.; Matthaeus, W.~H.; Snodin, A.~P.; Wongpan, P.; Chuychai, P.;
Published by: \apj Published on: 01/2015
YEAR: 2015 DOI: 10.1088/0004-637X/798/1/59
Parker Data Used; diffusion; ISM: magnetic fields; turbulence
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| 2014 |
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Generating Synthetic Magnetic Field Intermittency Using a Minimal Multiscale Lagrangian Mapping Approach
Subedi, P.; Chhiber, R.; Tessein, J.~A.; Wan, M.; Matthaeus, W.~H.;
Published by: \apj Published on: 12/2014
YEAR: 2014 DOI: 10.1088/0004-637X/796/2/97
Parker Data Used; magnetohydrodynamics: MHD; plasmas; turbulence
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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
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Nonlinear and Linear Timescales near Kinetic Scales in Solar Wind Turbulence
Matthaeus, W.~H.; Oughton, S.; Osman, K.~T.; Servidio, S.; Wan, M.; Gary, S.~P.; Shay, M.~A.; Valentini, F.; Roytershteyn, V.; Karimabadi, H.; Chapman, S.~C.;
Published by: \apj Published on: 08/2014
YEAR: 2014 DOI: 10.1088/0004-637X/790/2/155
Parker Data Used; magnetohydrodynamics: MHD; Solar wind; Sun: corona; turbulence; Physics - Space Physics; Physics - Plasma Physics
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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
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