Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Vasko, Ivan Y."'
Autor:
Bowen, Trevor A., Vasko, Ivan Y., Bale, Stuart D., Chandran, Benjamin D. G., Chasapis, Alexandros, de Wit, Thierry Dudok, Mallet, Alfred, McManus, Michael, Meyrand, Romain, Pulupa, Marc, Squire, Jonathan
Circularly polarized, nearly parallel propagating waves are prevalent in the solar wind at ion-kinetic scales. At these scales, the spectrum of turbulent fluctuations in the solar wind steepens, often called the transition-range, before flattening at
Externí odkaz:
http://arxiv.org/abs/2406.10446
We present the analysis of 2,033 current sheets (CS) observed aboard four Cluster spacecraft in a pristine solar wind. Four-spacecraft estimates of the CS normal and propagation velocity are compared with different single-spacecraft estimates. The Mi
Externí odkaz:
http://arxiv.org/abs/2312.06043
Publikováno v:
ApJ 959 65 (2023)
Spacecraft observations showed that electron heat conduction in the solar wind is probably regulated by whistler waves, whose origin and efficiency in electron heat flux suppression is actively investigated. In this paper, we present Particle-In-Cell
Externí odkaz:
http://arxiv.org/abs/2303.18214
We present Magnetospheric Multiscale observations of electrostatic double layers in quasi-perpendicular Earth's bow shock. These double layers have predominantly parallel electric field with amplitudes up to 100 mV/m, spatial widths of 50-700 m, and
Externí odkaz:
http://arxiv.org/abs/2211.16672
Autor:
Verscharen, Daniel, Chandran, Benjamin D. G., Boella, Elisabetta, Halekas, Jasper, Innocenti, Maria Elena, Jagarlamudi, Vamsee K., Micera, Alfredo, Pierrard, Viviane, Stverak, Stepan, Vasko, Ivan Y., Velli, Marco, Whittlesey, Phyllis L.
The electrons are an essential particle species in the solar wind. They often exhibit non-equilibrium features in their velocity distribution function. These include temperature anisotropies, tails (kurtosis), and reflectional asymmetries (skewness),
Externí odkaz:
http://arxiv.org/abs/2206.10403
Autor:
Vasko, Ivan Y., Alimov, Kazbek, Phan, Tai, Bale, Stuart D., Mozer, Forrest, Artemyev, Anton V.
We present analysis of 17,043 proton kinetic-scale current sheets collected over 124 days of Wind spacecraft measurements in the solar wind at 11 Samples/s magnetic field resolution. The current sheets have thickness $\lambda$ from a few tens to one
Externí odkaz:
http://arxiv.org/abs/2112.15256
For more than 12 hours beginning on January 18, 2021, continuous narrowband electrostatic emissions were observed on Parker Solar Probe near 20 solar radii. The observed <1000 Hz frequencies were well below the local ion plasma frequency. Surprisingl
Externí odkaz:
http://arxiv.org/abs/2108.07802
Autor:
Kropotina, Julia A., Webster, Lee, Artemyev, Anton V., Bykov, Andrei M., Vainchtein, Dmitri L., Vasko, Ivan Y.
Publikováno v:
The Astrophysical Journal, 913:142 (18pp), 2021 June 1
Solar wind plasma at the Earth's orbit carries transient magnetic field structures including discontinuities. Their interaction with the Earth's bow shock can significantly alter discontinuity configuration and stability. We investigate such an inter
Externí odkaz:
http://arxiv.org/abs/2106.06414
We present 1.5D Vlasov code simulations of the dynamics of electron holes in non-uniform magnetic and electric fields typical of current sheets and, particularly, of the Earth's magnetotail current sheet. The simulations show that spatial width and a
Externí odkaz:
http://arxiv.org/abs/2011.04198
Autor:
Kuzichev, Ilya V., Vasko, Ivan Y., Soto-Chavez, Angel Rualdo, Tong, Yuguang, Artemyev, Anton V., Bale, Stuart D., Spitkovsky, Anatoly
We use the one-dimensional TRISTAN-MP particle-in-cell code to model the nonlinear evolution of the whistler heat flux instability that was proposed by Gary et al. (1999, 2000) to regulate the electron heat flux in the solar wind and astrophysical pl
Externí odkaz:
http://arxiv.org/abs/1907.04878