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Notice:
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Found 473 entries in the Bibliography.
Showing entries from 1 through 50
| 2021 |
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Evolving solar wind flow properties of magnetic inversions observed by Helios Macneil, Allan; Owens, Mathew; Wicks, Robert; Lockwood, Mike; Published by: \mnras Published on: 03/2021 YEAR: 2021 DOI: 10.1093/mnras/staa3983 Sun: heliosphere; Sun: magnetic fields; Solar wind; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics |
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Switchbacks Explained: Super-Parker Fields—The Other Side of the Sub-Parker Spiral We provide a simple geometric explanation for the source of switchbacks and associated large and one-sided transverse flows in the solar wind observed by the Parker Solar Probe (PSP). The more radial, sub-Parker spiral structure of the heliospheric magnetic field observed previously by Ulysses, ACE, and STEREO is created within rarefaction regions where footpoint motion from the source of fast into slow wind at the Sun creates a magnetic fieldline connection across solar wind speed shear. Conversely, when footpoints move fro ... Published by: The Astrophysical Journal Published on: 03/2021 YEAR: 2021 DOI: 10.3847/1538-4357/abd4e6 Parker Data Used; Active Solar Corona; Solar wind; Solar Coronal Waves; Solar coronal loops; Solar coronal holes; Solar coronal plumes; Solar magnetic fields; interplanetary magnetic fields; Solar spicules; 1988; 1534; 1995; 1485; 1484; 2039; 1503; 824; 1525; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics; 85 |
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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 |
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The Parker Solar Probe (PSP) aims to explore the nascent solar wind close to the Sun. Meanwhile, PSP is also expected to encounter small objects like comets and asteroids. In this work, we survey the ephemerides to find the chance of a recent encounter and then model the interaction between released dusty plasmas and solar wind plasmas. On 2019 September 2, a comet-like object, the 322P/Solar and Heliosphere Observatory, just passed its perihelion flying to a heliocentric distance of 0.12 au and swept by PSP at a relative di ... He, Jiansen; Cui, Bo; Yang, Liping; Hou, Chuanpeng; Zhang, Lei; Ip, Wing-Huen; Jia, Ying-Dong; Dong, Chuanfei; Duan, Die; Zong, Qiugang; Bale, Stuart; Pulupa, Marc; Bonnell, John; de Wit, Thierry; Goetz, Keith; Harvey, Peter; MacDowall, Robert; Malaspina, David; Published by: The Astrophysical Journal Published on: 03/2021 YEAR: 2021 DOI: 10.3847/1538-4357/abdf4a Parker Data Used; Solar wind; Comet tails; Interplanetary dust; Asteroids; 1534; 274; 821; 72; Astrophysics - Earth and Planetary Astrophysics; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics |
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Source-dependent Properties of Two Slow Solar Wind States Two states of the slow solar wind are identified from in situ measurements by the Parker Solar Probe (PSP) inside 50 solar radii from the Sun. At such distances the wind measured by PSP has not yet undergone significant transformation related to the expansion and propagation of the wind. We focus in this study on the properties of the quiet solar wind with no magnetic switchbacks. The two states differ by their plasma beta, flux, and magnetic pressure. PSP s magnetic connectivity established with potential field source surfa ... Griton, Lea; Rouillard, Alexis; Poirier, Nicolas; Issautier, Karine; Moncuquet, Michel; Pinto, Rui; Published by: The Astrophysical Journal Published on: 03/2021 YEAR: 2021 DOI: 10.3847/1538-4357/abe309 Parker Data Used; Slow solar wind; Solar wind; Solar coronal holes; Solar coronal streamers; 1873; 1534; 1484; 1486; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics |
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Upflows in the Upper Solar Atmosphere Spectroscopic observations at extreme- and far-ultraviolet wavelengths have revealed systematic upflows in the solar transition region and corona. These upflows are best seen in the network structures of the quiet Sun and coronal holes, boundaries of active regions, and dimming regions associated with coronal mass ejections. They have been intensively studied in the past two decades because they are likely to be closely related to the formation of the solar wind and heating of the upper solar atmosphere. We present an overvi ... Tian, Hui; Harra, Louise; Baker, Deborah; Brooks, David; Xia, Lidong; Published by: Solar Physics Published on: 03/2021 YEAR: 2021 DOI: 10.1007/s11207-021-01792-7 Active regions; velocity field; Coronal holes; coronal mass ejections; low coronal signatures; Heating; coronal; Spectral line; broadening; Astrophysics - Solar and Stellar Astrophysics |
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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 |
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The scaling of the turbulent spectra provides a key measurement that allows us to discriminate between different theoretical predictions of turbulence. In the solar wind, this has driven a large number of studies dedicated to this issue using in situ data from various orbiting spacecraft. While a semblance of consensus exists regarding the scaling in the magnetohydrodynamic (MHD) and dispersive ranges, the precise scaling in the transition range and the actual physical mechanisms that control it remain open questions. Using ... . Y. Huang, S; Sahraoui, F.; Andrés, N.; Hadid, L.; Yuan, Z.; He, J.; Zhao, J.; Galtier, S.; Zhang, J.; Deng, X.; Jiang, K.; Yu, L.; Xu, S.; . Y. Xiong, Q; . Y. Wei, Y; de Wit, Dudok; Bale, S.; Kasper, J.; Published by: The Astrophysical Journal Published on: 03/2021 YEAR: 2021 DOI: 10.3847/2041-8213/abdaaf Parker Data Used; Solar wind; interplanetary turbulence; Solar coronal heating; 1534; 830; 1989; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics |
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Evidence of Subproton Scale Magnetic Holes in the Venusian Magnetosheath Depressions in magnetic field strength, commonly referred to as magnetic holes, are observed ubiquitously in space plasmas. Subproton scale magnetic holes with spatial scales smaller than or on the order of a proton gyroradius, are likely supported by electron current vortices, rotating perpendicular to the ambient magnetic field. While there are numerous accounts of subproton scale magnetic holes within the Earth s magnetosphere, there are few, if any, reported observations in other space plasma environments. We present the ... Goodrich, Katherine; Bonnell, John; Curry, Shannon; Livi, Roberto; Whittlesey, Phyllis; Mozer, Forrest; Malaspina, David; Halekas, Jasper; McManus, Michael; Bale, Stuart; Bowen, Trevor; Case, Anthony; de Wit, Thierry; Goetz, Keith; Harvey, Peter; Kasper, Justin; Larson, Davin; MacDowall, Robert; Pulupa, Marc; Stevens, Michael; Published by: Geophysical Research Letters Published on: 03/2021 YEAR: 2021 DOI: 10.1029/2020GL090329 |
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Execution of Parker Solar Probe s unprecedented flight to the Sun and early results Guo, Yanping; Thompson, Paul; Wirzburger, John; Pinkine, Nick; Bushman, Stewart; Goodson, Troy; Haw, Rob; Hudson, James; Jones, Drew; Kijewski, Seth; Lathrop, Brian; Lau, Eunice; Mottinger, Neil; Ryne, Mark; Shyong, Wen-Jong; Valerino, Powtawche; Whittenburg, Karl; Published by: Acta Astronautica Published on: 02/2021 YEAR: 2021 DOI: 10.1016/j.actaastro.2020.11.007 Parker Data Used; parker solar probe; V$^7$GA trajectory; Spaceflight; Mission design; Navigation; Trajectory maneuver; parker solar probe |
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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 |
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Wijsen, Nicolas; Samara, Evangelia; Aran, Angels; Lario, David; Pomoell, Jens; Poedts, Stefaan; Published by: \apjl Published on: 02/2021 YEAR: 2021 DOI: 10.3847/2041-8213/abe1cb Solar wind; Corotating streams; Interplanetary particle acceleration; 1534; 314; 826; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics |
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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 |
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Characteristics of Magnetic Holes in the Solar Wind Revealed by Parker Solar Probe Yu, L.; Huang, S.~Y.; Yuan, Z.~G.; Jiang, K.; Xiong, Q.~Y.; Xu, S.~B.; Wei, Y.~Y.; Zhang, J.; Zhang, Z.~H.; Published by: \apj Published on: 02/2021 YEAR: 2021 DOI: 10.3847/1538-4357/abb9a8 Solar wind; Solar Physics; interplanetary magnetic fields; Solar magnetic fields; 1534; 1476; 824; 1503; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics |
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Whistlers in the Solar Vicinity That Are Spiky in Time and Frequency Mozer, F.~S.; Bonnell, J.~W.; Halekas, J.~S.; Rahmati, A.; Schum, G.; Vasko, I.~V.; Published by: \apj Published on: 02/2021 YEAR: 2021 DOI: 10.3847/1538-4357/abce59 Solar wind; Solar Physics; Solar electromagnetic emission; 1534; 1476; 1490 |
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Self-Organization through the Inner Heliosphere: Insights from Parker Solar Probe Stumpo, Mirko; Quattrociocchi, Virgilio; Benella, Simone; Alberti, Tommaso; Consolini, Giuseppe; Published by: Atmosphere Published on: 02/2021 YEAR: 2021 DOI: 10.3390/atmos12030321 |
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Harmonic Radio Emission in Randomly Inhomogeneous Plasma In the present paper, we describe a theoretical model of the generation of harmonic emissions of type III solar radio bursts. The goal of our study is to fully take into account the most efficient physical processes involved in the generation of harmonic electromagnetic emission via nonlinear coupling of Langmuir waves in randomly inhomogeneous plasma of solar wind ( $l+l^\prime \to t$ ). We revisit the conventional mechanism of coalescence of primarily generated and back-scattered Langmuir waves in quasihomogeneous plasma. ... Tkachenko, Anna; Krasnoselskikh, Vladimir; Voshchepynets, Andrii; Published by: The Astrophysical Journal Published on: 02/2021 YEAR: 2021 DOI: 10.3847/1538-4357/abd2bd Parker Data Used; Solar wind; interplanetary turbulence; Solar Coronal Waves; 1534; 830; 1995; Physics - Plasma Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics |
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The addition of Parker Solar Probe (PSP) to the Heliophysics System Observatory has allowed for the unprecedented ability to study Corotating Interaction Regions (CIRs) at multiple radial distances without significant temporal/longitudinal variations. On September 19, 2019, PSP observed a CIR at ∼0.5 au when it was nearly radially aligned with the Solar Terrestrial Relations Observatory Ahead (STEREO A) spacecraft at ∼1 au, allowing for an unambiguous assessment of the radial evolution of a single CIR. Bulk plasma and ma ... Allen, R.; Ho, G.; Mason, G.; Li, G.; Jian, L.; Vines, S.; Schwadron, N.; Joyce, C.; Bale, S.; Bonnell, J.; Case, A.; Christian, E.; Cohen, C.; Desai, M.; Filwett, R.; Goetz, K.; Harvey, P.; Hill, M.; Kasper, J.; Korreck, K.; Lario, D.; Larson, D.; Livi, R.; MacDowall, R.; Malaspina, D.; McComas, D.; McNutt, R.; Mitchell, D.; Paulson, K.; Pulupa, M.; Raouafi, N.; Stevens, M.; Whittlesey, P.; Wiedenbeck, M.; Published by: Geophysical Research Letters Published on: 02/2021 YEAR: 2021 DOI: 10.1029/2020GL091376 Parker Data Used; CIRs; parker solar probe; Solar wind; STEREO; suprathermal ions |
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Measurement of Magnetic Field Fluctuations in the Parker Solar Probe and Solar Orbiter Missions The search coil magnetometer (SCM) measures the magnetic signature of solar wind fluctuations with three components in the 3 Hz-50 kHz range and one single component in the 1 kHz-1 MHz range. This instrument is important for providing in situ observations of transients caused by interplanetary shocks and reconnection, for the identification of electromagnetic wave modes in plasmas and the determination of their characteristics (planarity, polarization, ellipticity, and k vector) and for studying the turbulent cascade in the ... Jannet, G.; de Wit, Dudok; Krasnoselskikh, V.; Kretzschmar, M.; Fergeau, P.; Bergerard-Timofeeva, M.; Agrapart, C.; . Y. Brochot, J; Chalumeau, G.; Martin, P.; Revillet, C.; Bale, S.; Maksimovic, M.; Bowen, T.; Brysbaert, C.; Goetz, K.; Guilhem, E.; Harvey, P.; Leray, V.; Lorfèvre, E.; Published by: Journal of Geophysical Research (Space Physics) Published on: 02/2021 YEAR: 2021 DOI: 10.1029/2020JA028543 Parker Data Used; magnetometer; parker solar probe; search coil; Solar Orbiter |
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Melnik, V.~N.; Brazhenko, A.~I.; Konovalenko, A.~A.; Frantsuzenko, A.~V.; Yerin, S.~M.; Dorovskyy, V.~V.; Bubnov, I.~M.; Published by: \solphys Published on: 01/2021 YEAR: 2021 DOI: 10.1007/s11207-020-01754-5 Type III bursts; Type IIIb bursts; Frequency drift rates; Durations; Brightness temperatures; Astrophysics - Solar and Stellar Astrophysics |
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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 |
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Three-dimensional Simulations of the Inhomogeneous Low Solar Wind Magyar, N.; Nakariakov, V.~M.; Published by: \apj Published on: 01/2021 YEAR: 2021 DOI: 10.3847/1538-4357/abd02f Fast solar wind; interplanetary turbulence; Magnetohydrodynamical simulations; Solar Coronal Waves; 1872; 830; 1966; 1995; Astrophysics - Solar and Stellar Astrophysics |
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Plumelets: Dynamic Filamentary Structures in Solar Coronal Plumes Uritsky, V.~M.; DeForest, C.~E.; Karpen, J.~T.; DeVore, C.~R.; Kumar, P.; Raouafi, N.~E.; Wyper, P.~F.; Published by: \apj Published on: 01/2021 YEAR: 2021 DOI: 10.3847/1538-4357/abd186 Solar coronal holes; Solar activity; Solar coronal transients; Solar Coronal Waves; Solar magnetic reconnection; Solar wind; Plasma jets; Solar coronal plumes; Solar extreme ultraviolet emission; Direct imaging; Astronomy data analysis; Solar oscillations; 1484; 1475; 312; 1995; 1504; 1534; 1263; 2039; 1493; 387; 1858; 1515; Astrophysics - Solar and Stellar Astrophysics |
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We present a major update to the 3D coronal rope ejection (3DCORE) technique for modeling coronal mass ejection flux ropes in conjunction with an approximate Bayesian computation (ABC) algorithm that is used for fitting the model to in situ magnetic field measurements. The model assumes an empirically motivated torus-like flux rope structure that expands self-similarly within the heliosphere, is influenced by a simplified interaction with the solar wind environment, and carries along an embedded analytical magnetic field. Th ... Weiss, Andreas; Moestl, Christian; Amerstorfer, Tanja; Bailey, Rachel; Reiss, Martin; Hinterreiter, Juergen; Amerstorfer, Ute; Bauer, Maike; Published by: ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES Published on: 01/2021 YEAR: 2021 DOI: 10.3847/1538-4365/abc9bd |
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Abstract The addition of Parker Solar Probe (PSP) to the Heliophysics System Observatory has allowed for the unprecedented ability to study Corotating Interaction Regions (CIRs) at multiple radial distances without significant temporal/longitudinal variations. On September 19, 2019, PSP observed a CIR at ∼0.5 au when it was nearly radially aligned with the Solar Terrestrial Relations Observatory-Ahead (STEREO-A) spacecraft at ∼1 au, allowing for an unambiguous assessment of the radial evolution of a single CIR. Bulk pl ... Allen, R.; Ho, G.; Mason, G.; Li, G.; Jian, L.; Vines, S.; Schwadron, N.; Joyce, C.; Bale, S.; Bonnell, J.; Case, A.; Christian, E.; Cohen, C.; Desai, M.; Filwett, R.; Goetz, K.; Harvey, P.; Hill, M.; Kasper, J.; Korreck, K.; Lario, D.; Larson, D.; Livi, R.; MacDowall, R.; Malaspina, D.; McComas, D.; McNutt, R.; Mitchell, D.; Paulson, K.; Pulupa, M.; Raouafi, N.; Stevens, M.; Whittlesey, P.; Wiedenbeck, M.; Published by: Geophysical Research Letters Published on: YEAR: 2021 DOI: https://doi.org/10.1029/2020GL091376 Parker Data Used; CIRs; parker solar probe; Solar wind; STEREO; suprathermal ions |
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Evidence of Subproton-Scale Magnetic Holes in the Venusian Magnetosheath Abstract Depressions in magnetic field strength, commonly referred to as magnetic holes, are observed ubiquitously in space plasmas. Subproton-scale magnetic holes with spatial scales smaller than or on the order of a proton gyroradius, are likely supported by electron current vortices, rotating perpendicular to the ambient magnetic field. While there are numerous accounts of subproton-scale magnetic holes within the Earth’s magnetosphere, there are few, if any, reported observations in other space plasma environments. We ... Goodrich, Katherine; Bonnell, John; Curry, Shannon; Livi, Roberto; Whittlesey, Phyllis; Mozer, Forrest; Malaspina, David; Halekas, Jasper; McManus, Michael; Bale, Stuart; Bowen, Trevor; Case, Anthony; de Wit, Thierry; Goetz, Keith; Harvey, Peter; Kasper, Justin; Larson, Davin; MacDowall, Robert; Pulupa, Marc; Stevens, Michael; Published by: Geophysical Research Letters Published on: YEAR: 2021 DOI: https://doi.org/10.1029/2020GL090329 |
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Parker Solar Probe observations of He/H abundance variations in SEP events inside 0.5 au Cohen, C.M.S.; Christian, E.R.; Cummings, A.C.; Davis, A.J.; Desai, M.I.; Giacalone, J.; Hill, M.E.; Joyce, C.J.; Labrador, A.W.; Leske, R.A.; Matthaeus, W.H.; McComas, D.J.; McNutt, R.L.; Mewaldt, R.A.; Mitchell, D.G.; Rankin, J.S.; Roelof, E.C.; al., et; Published by: Astronomy and Astrophysics Published on: YEAR: 2021 DOI: "10.1051/0004-6361/202039299" |
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Switchbacks: Statistical properties and deviations from Alfv\ enicity Larosa, A.; Krasnoselskikh, V.; de Wit, Dudok; Agapitov, O.; Froment, C.; al., et; Published by: Astronomy and Astrophysics Published on: YEAR: 2021 DOI: "10.1051/0004-6361/202039442" |
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Cattell, C.; Short, B.; Breneman, A.; Halekas, J.; Whittesley, P.; Larson, D.; Kasper, J.; Stevens, M.; Case, T.; , al; Published by: Astronomy and Astrophysics Published on: YEAR: 2021 DOI: "10.1051/0004-6361/202039550" |
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Solar wind energy flux observations in the inner heliosphere: First results from Parker Solar Probe 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: YEAR: 2021 DOI: "10.1051/0004-6361/202039615" |
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Wiedenbeck, M.; Burnham, J.; Cohen, C.; Cook, W.; Crabill, R.; Cummings, A.; Davis, A.; Kecman, B.; Labrador, A.; Leske, R.; Mewaldt, R.; Rankin, J.; Rusert, M.; Stone, E.; Christian, E.; Goodwin, P.; al., et; Published by: Astronomy and Astrophysics Published on: YEAR: 2021 DOI: "10.1051/0004-6361/202039754" |
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Froment, C.; Krasnoselskikh, V.; de Wit, Dudok; Agapitov, O.; Fargette, N.; Lavraud, B.; Kretzschmar, M.; Jagarlamudi, V.; Larosa, A.; Velli, M.; Malaspina, D.; Bale, S.; Case, A.; Goetz, K.; Kasper, J.; Korreck, K.; Larson, D.; , al; Published by: Astronomy and Astrophysics Published on: YEAR: 2021 DOI: "10.1051/0004-6361/202039806" |
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Jagarlamudi, V.K.; de Wit, Dudok; Froment, C.; Krasnoselskikh, V.; Larosa, A.; Bercic, L.; Agapitov, O.; Halekas, J.S.; Kretzschmar, M.; Malaspina, D.; Moncuquet, M.; Bale, S.; Case, A.; Kasper, J.; Korreck, K.; Larson, D.; Pulupa, M.; Stevens, M.; Published by: Astronomy and Astrophysics Published on: YEAR: 2021 DOI: "10.1051/0004-6361/202039808" |
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Chhiber, R.; Matthaeus, W.; Cohen, C.; Ruffolo, D.; Sonsrettee, W.; Tooprakai, P.; Seripienlert, A.; Chuychai, P.; Usmanov, A.; Goldstein, M.; McComas, D.; Leske, R.; Christian, E.; Mewaldt, R.; Labrador, A.; al., et; Published by: Astronomy and Astrophysics Published on: YEAR: 2021 DOI: "10.1051/0004-6361/202039816" |
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Alfvenic versus non-Alfvenic turbulence in the inner heliosphere as observed by Parker Solar Probe Shi, C.; Velli, M.; Panasenco, O.; Tenerani, A.; eville, V.; Bale, S.; Kasper, J.; Korreck, K.; Bonnell, J.; de Wit, Dudok; Goetz, K.; Harvey, P.; MacDowall, R.; Pulupa, M.; Case, A.; Larson, D.; Verniero, J.; Livi, R.; Stevens, M.; al., et; Published by: Astronomy and Astrophysics Published on: YEAR: 2021 DOI: "10.1051/0004-6361/202039818" |
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The near-Sun streamer belt solar wind: turbulence and solar wind acceleration Chen, C.; Chandran, B.; Woodham, L.; Jones, S.; Perez, J.; Bourouaine, S.; Bowen, T.; Klein, K.; Moncuquet, M.; Kasper, J.; Bale, S.; Published by: Astronomy and Astrophysics Published on: YEAR: 2021 DOI: "10.1051/0004-6361/202039872" |
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Investigating the Chromospheric Footpoints of the Solar Wind Bryans, Paul; McIntosh, Scott; Brooks, David; De Pontieu, Bart; Published by: \apjl Published on: 12/2021 YEAR: 2020 DOI: 10.3847/2041-8213/abce69 Quiet solar chromosphere; Solar magnetic fields; Solar coronal holes; Solar corona; 1986; 1503; 1484; 1483 |
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Turbulence Characteristics of Switchback and Nonswitchback Intervals Observed by Parker Solar Probe We use Parker Solar Probe (PSP) in situ measurements to analyze the characteristics of solar wind turbulence during the first solar encounter covering radial distances between 35.7R and 41.7R. In our analysis we isolate so-called switchback (SB) intervals (folded magnetic field lines) from nonswitchback (NSB) intervals, which mainly follow the Parker spiral field. Using a technique based on conditioned correlation functions, we estimate the power spectra of Elsasser, magnetic, and bulk velocity fields separately in the SB an ... Bourouaine, Sofiane; Perez, Jean; Klein, Kristopher; Chen, Christopher; Martinovic, Mihailo; Bale, Stuart; Kasper, Justin; Raouafi, Nour; Published by: ASTROPHYSICAL JOURNAL LETTERS Published on: 12/2020 YEAR: 2020 DOI: 10.3847/2041-8213/abbd4a |
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Radio Signature of a Distant behind-the-limb CME on 2017 September 6 We discuss properties of a Type IV burst, which was observed on 2017 September 6, as a result of the powerful flare X 9.3. At decameter wavelengths this burst was observed by the radio telescopes STEREO A, URAN-2, and the Nancay Decameter Array at frequencies 5-35 MHz. This moving Type IV burst was associated with a coronal mass ejection (CME) propagating in the southwest direction with a speed of 1570 km s(-1). The maximum radio flux of this burst was about 300 s.f.u. and the polarization was more than 40\%. In the frequenc ... Melnik, V.; Rucker, H.; Brazhenko, I.; Panchenko, M.; Konovalenko, A.; , Frantsuzenko; Dorovskyy, V.; , Shevchuk; Published by: ASTROPHYSICAL JOURNAL Published on: 12/2020 YEAR: 2020 DOI: 10.3847/1538-4357/abbfb3 |
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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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Magnetohydrodynamic Turbulent Evolution of a Magnetic Cloud in the Outer Heliosphere Telloni, Daniele; Zhao, Lingling; Zank, Gary; Liang, Haoming; Nakanotani, Masaru; Adhikari, Laxman; Carbone, Francesco; Amicis, Raffaella; Perrone, Denise; Bruno, Roberto; Dasso, Sergio; Published by: \apjl Published on: 12/2020 YEAR: 2020 DOI: 10.3847/2041-8213/abcb03 Parker Data Used; Magnetohydrodynamics; interplanetary turbulence; Solar coronal mass ejections; interplanetary magnetic fields; Heliosphere; Solar wind; Solar magnetic reconnection; 1964; 830; 310; 824; 711; 1534; 1504 |
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A Model for Coronal Inflows and In/Out Pairs Published by: \apj Published on: 12/2020 YEAR: 2020 DOI: 10.3847/1538-4357/abc5b3 Active Solar Corona; Solar coronal streamers; Solar coronal transients; Solar magnetic fields; Solar magnetic reconnection; Magnetohydrodynamics; 1988; 1486; 312; 1503; 1504; 1964; Astrophysics - Solar and Stellar Astrophysics |
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The Parker Solar Probe mission has shown the ubiquitous presence of strong magnetic field deflections, namely switchbacks, during its first perihelion where it was embedded in a highly Alfvenic slow stream. Here, we study the turbulent magnetic fluctuations around ion scales in three intervals characterized by a different switchback activity, identified by the behavior of the magnetic field radial component, B-r. Quiet (B-r does not show significant fluctuations), weakly disturbed (B-r has strong fluctuations but no reversal ... Perrone, Denise; Bruno, Roberto; Amicis, Raffaella; Telloni, Daniele; De Marco, Rossana; Stangalini, Marco; Perri, Silvia; Pezzi, Oreste; Alexandrova, Olga; Bale, Stuart; Published by: ASTROPHYSICAL JOURNAL Published on: 12/2020 YEAR: 2020 DOI: 10.3847/1538-4357/abc480 |
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Solar Wind Plasma Particles Organized by the Flow Speed Recent reports of the first data from Parker Solar Probe (PSP) have pointed to a series of links, correlations or anti-correlations between the solar wind bulk speed (VSW) and physical properties of plasma particles from less than 0.25 AU in the corona. In the present paper, we describe corresponding and additional links of solar wind properties, at 0.4 AU and 1.0 AU, in an attempt to complement the PSP data and understand their evolution. A detailed analysis is carried out for the main electron populations, comparing the lo ... Pierrard, Viviane; Lazar, Marian; Stverak, Stepan; Published by: SOLAR PHYSICS Published on: 11/2020 YEAR: 2020 DOI: 10.1007/s11207-020-01730-z |
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Tearing Modes in Partially Ionized Astrophysical Plasma Pucci, Fulvia; Singh, Alkendra; Tenerani, Anna; Velli, Marco; Published by: \apjl Published on: 11/2020 YEAR: 2020 DOI: 10.3847/2041-8213/abc0e7 Parker Data Used; Solar magnetic reconnection; Plasma astrophysics; Space plasmas; Collision processes; 1504; 1261; 1544; 2065; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics |
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Novel aspects of cosmic ray diffusion in synthetic magnetic turbulence Dundovic, Andrej; Pezzi, Oreste; Blasi, Pasquale; Evoli, Carmelo; Matthaeus, William; Published by: \prd Published on: 11/2020 YEAR: 2020 DOI: 10.1103/PhysRevD.102.103016 Parker Data Used; Astrophysics - High Energy Astrophysical Phenomena; Physics - Plasma Physics; Physics - Space Physics |
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Goldstein, Melvyn; Ruffolo, D.; Matthaeus, W.~H.; Chhiber, R.; Usmanov, A.~V.; Yang, Y.; Bandyopadhyay, R.; Parashar, T.~N.; DeForest, E.; Wan, M.; Chasapis, A.; Maruca, B.~A.; Velli, M.; Kasper, J.~C.; Published by: Radiation Effects and Defects in Solids Published on: 11/2020 YEAR: 2020 DOI: 10.1080/10420150.2020.1845690 |
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Energy Supply for Heating the Slow Solar Wind Observed by Parker Solar Probe between 0.17 and 0.7 au Energy supply sources for the heating process in the slow solar wind remain unknown. The Parker Solar Probe (PSP) mission provides a good opportunity to study this issue. Recently, PSP observations have found that the slow solar wind experiences stronger heating inside 0.24 au. Here for the first time we measure in the slow solar wind the radial gradient of the low-frequency breaks on the magnetic trace power spectra and evaluate the associated energy supply rate. We find that the energy supply rate is consistent with the ob ... Wu, Honghong; Tu, Chuanyi; Wang, Xin; He, Jiansen; Yang, Liping; Published by: The Astrophysical Journal Published on: 11/2020 YEAR: 2020 DOI: 10.3847/2041-8213/abc5b6 Parker Data Used; Slow solar wind; interplanetary turbulence; Solar coronal heating |
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The Parker Solar Probe (PSP) and Solar Orbiter missions are designed to make groundbreaking observations of the Sun and interplanetary space within this decade. We show that a particularly interesting in situ observation of an interplanetary coronal mass ejection (ICME) by PSP may arise during close solar flybys (<0.1 au). During these times, the same magnetic flux rope inside an ICME could be observed in situ by PSP twice, by impacting its frontal part as well as its leg. Investigating the odds of this situation, we forecas ... Möstl, Christian; Weiss, Andreas; Bailey, Rachel; Reiss, Martin; Amerstorfer, Tanja; Hinterreiter, Jürgen; Bauer, Maike; McIntosh, Scott; Lugaz, No\; Stansby, David; Published by: The Astrophysical Journal Published on: 11/2020 YEAR: 2020 DOI: 10.3847/1538-4357/abb9a1 Solar coronal mass ejection; Solar storm; Ejecta; space weather; Solar system; Solar wind; Solar Physics; interplanetary magnetic fields; Solar magnetic fields |
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We present results of a two-dimensional fully kinetic particle-in-cell simulation in order to shed light on the role of whistler waves in the scattering of strahl electrons and in the heat-flux regulation in the solar wind. We model the electron velocity distribution function as initially composed of core and strahl populations as typically encountered in the near-Sun solar wind as observed by Parker Solar Probe. We demonstrate that, as a consequence of the evolution of the electron velocity distribution function (VDF), two ... Micera, A.; Zhukov, A.; opez, R.; Innocenti, M.; Lazar, M.; Boella, E.; Lapenta, G.; Published by: The Astrophysical Journal Published on: 11/2020 YEAR: 2020 DOI: 10.3847/2041-8213/abc0e8 Parker Data Used; Solar wind; Space plasmas; Plasma astrophysics |
