| 2020 |
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Sunward-propagating Whistler Waves Collocated with Localized Magnetic Field Holes in the Solar Wind: Parker Solar Probe Observations at 35.7 R ⊙ Radii
Observations by the Parker Solar Probe mission of the solar wind at \~35.7 solar radii reveal the existence of whistler wave packets with frequencies below 0.1 fce (20-80 Hz in the spacecraft frame). These waves often coincide with local minima of the magnetic field magnitude or with sudden deflections of the magnetic field that are called switchbacks. Their sunward propagation leads to a significant Doppler frequency downshift from 200-300 to 20-80 Hz (from 0.2 to 0.5 fce). The polarization of these ...
Agapitov, O.; de Wit, Dudok; Mozer, F.; Bonnell, J.; Drake, J.; Malaspina, D.; Krasnoselskikh, V.; Bale, S.; Whittlesey, P.; Case, A.; Chaston, C.; Froment, C.; Goetz, K.; Goodrich, K.; Harvey, P.; Kasper, J.; Korreck, K.; Larson, D.; Livi, R.; MacDowall, R.; Pulupa, M.; Revillet, C.; Stevens, M.; Wygant, J.;
Published by: The Astrophysical Journal Published on: 03/2020
YEAR: 2020 DOI: 10.3847/2041-8213/ab799c
Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Space Physics; Solar Probe Plus
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Parker Solar Probe In Situ Observations of Magnetic Reconnection Exhausts during Encounter 1
Magnetic reconnection in current sheets converts magnetic energy into particle energy. The process may play an important role in the acceleration and heating of the solar wind close to the Sun. Observations from Parker Solar Probe (PSP) provide a new opportunity to study this problem, as it measures the solar wind at unprecedented close distances to the Sun. During the first orbit, PSP encountered a large number of current sheets in the solar wind through perihelion at 35.7 solar radii. We performed a comprehensive survey ...
Phan, T.; Bale, S.; Eastwood, J.; Lavraud, B.; Drake, J.; Oieroset, M.; Shay, M.; Pulupa, M.; Stevens, M.; MacDowall, R.; Case, A.; Larson, D.; Kasper, J.; Whittlesey, P.; Szabo, A.; Korreck, K.; Bonnell, J.; de Wit, Dudok; Goetz, K.; Harvey, P.; Horbury, T.; Livi, R.; Malaspina, D.; Paulson, K.; Raouafi, N.; Velli, M.;
Published by: The Astrophysical Journal Supplement Series Published on: 02/2020
YEAR: 2020 DOI: 10.3847/1538-4365/ab55ee
Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; Solar Probe Plus
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Switchbacks as signatures of magnetic flux ropes generated by interchange reconnection in the corona
Drake, J.; Agapitov, A.; Swisdak, M.; Badman, S.; Bale, S.; Horbury, T.; Kasper, Justin; MacDowall, R.; Mozer, F.; Phan, T.; Pulupa, M.; Szabo, A.; Velli, M.;
Published by: Astronomy and Astrophysics Published on:
YEAR: 2020 DOI: "10.1051/0004-6361/202039432"
Parker Data Used; parker solar probe; Solar Probe Plus
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Prevalence of magnetic reconnection in the near-Sun heliospheric current sheet
Phan, T.; Lavraud, B.; S., J.; , Halekas; Oieroset, M.; Drake, J.; Eastwood, J.; Shay, M.; Bale, S.; Larson, D.; Livi, R.; Whittlesey, P.; Rahmati, A.; Pulupa, M.; McManus, M.; Verniero, J.; Bonnell, J.; Stevens, M.; Case, A.; al., et;
Published by: Astronomy and Astrophysics Published on:
YEAR: 2020 DOI: "10.1051/0004-6361/202039863"
Parker Data Used; parker solar probe; Solar Probe Plus
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| 2019 |
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Scattering of Energetic Electrons by Heat-flux-driven Whistlers in Flares
Roberg-Clark, G.~T.; Agapitov, O.; Drake, J.~F.; Swisdak, M.;
Published by: \apj Published on: 12/2019
YEAR: 2019 DOI: 10.3847/1538-4357/ab5114
Parker Data Used; solar flares; Plasma physics; 1496; 2089; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics
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Highly structured slow solar wind emerging from an equatorial coronal hole
During the solar minimum, when the Sun is at its least active, the solar wind is observed at high latitudes as a predominantly fast (more than 500 kilometres per second), highly Alfv\ enic rarefied stream of plasma originating from deep within coronal holes. Closer to the ecliptic plane, the solar wind is interspersed with a more variable slow wind of less than 500 kilometres per second. The precise origins of the slow wind streams are less certain; theories and observations suggest that they may originate at the tips of ...
Bale, S.; Badman, S.; Bonnell, J.; Bowen, T.; Burgess, D.; Case, A.; Cattell, C.; Chandran, B.; Chaston, C.; Chen, C.; Drake, J.; de Wit, Dudok; Eastwood, J.; Ergun, R.; Farrell, W.; Fong, C.; Goetz, K.; Goldstein, M.; Goodrich, K.; Harvey, P.; Horbury, T.; Howes, G.; Kasper, J.; Kellogg, P.; Klimchuk, J.; Korreck, K.; Krasnoselskikh, V.; Krucker, S.; Laker, R.; Larson, D.; MacDowall, R.; Maksimovic, M.; Malaspina, D.; Martinez-Oliveros, J.; McComas, D.; Meyer-Vernet, N.; Moncuquet, M.; Mozer, F.; Phan, T.; Pulupa, M.; Raouafi, N.; Salem, C.; Stansby, D.; Stevens, M.; Szabo, A.; Velli, M.; Woolley, T.; Wygant, J.;
Published by: Nature Published on: 12/2019
YEAR: 2019 DOI: 10.1038/s41586-019-1818-7
Parker Data Used; parker solar probe; Solar Probe Plus
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Large-scale parallel electric fields and return currents in a global simulation model
Arnold, H.; Drake, J.~F.; Swisdak, M.; Dahlin, J.;
Published by: Physics of Plasmas Published on: 10/2019
YEAR: 2019 DOI: 10.1063/1.5120373
Parker Data Used; Physics - Plasma Physics; Physics - Space Physics
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Instabilities and turbulence in low-\ensuremath\beta guide field reconnection exhausts with kinetic Riemann simulations
Zhang, Qile; Drake, J.~F.; Swisdak, M.;
Published by: Physics of Plasmas Published on: 10/2019
YEAR: 2019 DOI: 10.1063/1.5121782
Parker Data Used; Physics - Plasma Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics
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Particle heating and energy partition in low-\ensuremath\beta guide field reconnection with kinetic Riemann simulations
Zhang, Qile; Drake, J.~F.; Swisdak, M.;
Published by: Physics of Plasmas Published on: 07/2019
YEAR: 2019 DOI: 10.1063/1.5104352
Parker Data Used; Physics - Plasma Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics
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A computational model for exploring particle acceleration during reconnection in macroscale systems
Drake, J.~F.; Arnold, H.; Swisdak, M.; Dahlin, J.~T.;
Published by: Physics of Plasmas Published on: 01/2019
YEAR: 2019 DOI: 10.1063/1.5058140
Parker Data Used; Astrophysics - Solar and Stellar Astrophysics; Astrophysics - High Energy Astrophysical Phenomena; Physics - Plasma Physics
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| 2016 |
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The FIELDS Instrument Suite for Solar Probe Plus
NASA\textquoterights Solar Probe Plus (SPP) mission will make the first in situ measurements of the solar corona and the birthplace of the solar wind. The FIELDS instrument suite on SPP will make direct measurements of electric and magnetic fields, the properties of in situ plasma waves, electron density and temperature profiles, and interplanetary radio emissions, amongst other things. Here, we describe the scientific objectives targeted by the SPP/FIELDS instrument, the instrument design itself, and the instrument conce ...
Bale, S.; Goetz, K.; Harvey, P.; Turin, P.; Bonnell, J.; de Wit, T.; Ergun, R.; MacDowall, R.; Pulupa, M.; Andre, M.; Bolton, M.; Bougeret, J.-L.; Bowen, T.; Burgess, D.; Cattell, C.; Chandran, B.; Chaston, C.; Chen, C.; Choi, M.; Connerney, J.; Cranmer, S.; Diaz-Aguado, M.; Donakowski, W.; Drake, J.; Farrell, W.; Fergeau, P.; Fermin, J.; Fischer, J.; Fox, N.; Glaser, D.; Goldstein, M.; Gordon, D.; Hanson, E.; Harris, S.; Hayes, L.; Hinze, J.; Hollweg, J.; Horbury, T.; Howard, R.; Hoxie, V.; Jannet, G.; Karlsson, M.; Kasper, J.; Kellogg, P.; Kien, M.; Klimchuk, J.; Krasnoselskikh, V.; Krucker, S.; Lynch, J.; Maksimovic, M.; Malaspina, D.; Marker, S.; Martin, P.; Martinez-Oliveros, J.; McCauley, J.; McComas, D.; McDonald, T.; Meyer-Vernet, N.; Moncuquet, M.; Monson, S.; Mozer, F.; Murphy, S.; Odom, J.; Oliverson, R.; Olson, J.; Parker, E.; Pankow, D.; Phan, T.; Quataert, E.; Quinn, T.; Ruplin, S.; Salem, C.; Seitz, D.; Sheppard, D.; Siy, A.; Stevens, K.; Summers, D.; Szabo, A.; Timofeeva, M.; Vaivads, A.; Velli, M.; Yehle, A.; Werthimer, D.; Wygant, J.;
Published by: Space Science Reviews Published on: 12/2016
YEAR: 2016 DOI: 10.1007/s11214-016-0244-5
Coronal heating; Parker Data Used; parker solar probe; Solar Probe Plus
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| 2014 |
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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
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