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Found 4 entries in the Bibliography.
Showing entries from 1 through 4
Strong Perpendicular Velocity-space Diffusion in Proton Beams Observed by Parker Solar Probe
The SWEAP instrument suite on Parker Solar Probe (PSP) has detected numerous proton beams associated with coherent, circularly polarized, ion-scale waves observed by PSP s FIELDS instrument suite. Measurements during PSP Encounters 4-8 revealed pronounced complex shapes in the proton velocity distribution functions (VDFs), in which the tip of the beam undergoes strong perpendicular diffusion, resulting in VDF level contours that resemble a hammerhead. We refer to these proton beams, with their attendant hammerhead fe ...
Verniero, J.~L.; Chandran, B.~D.~G.; Larson, D.~E.; Paulson, K.; Alterman, B.~L.; Badman, S.; Bale, S.~D.; Bonnell, J.~W.; Bowen, T.~A.; de Wit, Dudok; Kasper, J.~C.; Klein, K.~G.; Lichko, E.; Livi, R.; McManus, M.~D.; Rahmati, A.; Verscharen, D.; Walters, J.; Whittlesey, P.~L.;
Published by: \apj Published on: jan
YEAR: 2022   DOI: 10.3847/1538-4357/ac36d5
Parker Data Used; 1544; 23; 1534; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics
Parker Solar Probe Enters the Magnetically Dominated Solar Corona
The high temperatures and strong magnetic fields of the solar corona form streams of solar wind that expand through the Solar System into interstellar space. At 09:33 UT on 28 April 2021 Parker Solar Probe entered the magnetized atmosphere of the Sun 13 million km above the photosphere, crossing below the Alfv\ en critical surface for five hours into plasma in casual contact with the Sun with an Alfv\ en Mach number of 0.79 and magnetic pressure dominating both ion and electron pressure. The spectrum of turbulence below the ...
Kasper, J.~C.; Klein, K.~G.; Lichko, E.; Huang, Jia; Chen, C.~H.~K.; Badman, S.~T.; Bonnell, J.; Whittlesey, P.~L.; Livi, R.; Larson, D.; Pulupa, M.; Rahmati, A.; Stansby, D.; Korreck, K.~E.; Stevens, M.; Case, A.~W.; Bale, S.~D.; Maksimovic, M.; Moncuquet, M.; Goetz, K.; Halekas, J.~S.; Malaspina, D.; Raouafi, Nour; Szabo, A.; MacDowall, R.; Velli, Marco; de Wit, Thierry; Zank, G.~P.;
Published by: \prl Published on: dec
YEAR: 2021   DOI: 10.1103/PhysRevLett.127.255101
Multiscale Solar Wind Turbulence Properties inside and near Switchbacks Measured by the Parker Solar Probe
The Parker Solar Probe (PSP) routinely observes magnetic field deflections in the solar wind at distances less than 0.3 au from the Sun. These deflections are related to structures commonly called "switchbacks" (SBs), whose origins and characteristic properties are currently debated. Here, we use a database of visually selected SB intervals—and regions of solar wind plasma measured just before and after each SB—to examine plasma parameters, turbulent spectra from inertial to dissipation scales, and intermittency ...
Martinovic, Mihailo; Klein, Kristopher; Huang, Jia; Chandran, Benjamin; Kasper, Justin; Lichko, Emily; Bowen, Trevor; Chen, Christopher; Matteini, Lorenzo; Stevens, Michael; Case, Anthony; Bale, Stuart;
Published by: The Astrophysical Journal Published on: 05/2021
YEAR: 2021   DOI: 10.3847/1538-4357/abebe5
Parker Data Used; Space plasmas; interplanetary turbulence; Solar wind; 1544; 830; 1534; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics
Inferred Linear Stability of Parker Solar Probe Observations Using One- and Two-component Proton Distributions
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