Formation of Multiple Current Sheets in the Heliospheric Plasma Sheet

Autor:	V. Yu. Popov, E. V. Maiewski, A. A. Petrukovich, R. A. Kislov, Olga Khabarova, Lev Zelenyi, Helmi Malova
Rok vydání:	2020
Předmět:	Physics 010504 meteorology & atmospheric sciences Plasma sheet Aerospace Engineering Astronomy and Astrophysics Context (language use) 01 natural sciences Computational physics Magnetic field Azimuth Solar wind Space and Planetary Science Physics::Space Physics 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics Magnetohydrodynamic drive Electric current Current (fluid) 010303 astronomy & astrophysics 0105 earth and related environmental sciences
Zdroj:	Cosmic Research. 58:411-425
ISSN:	1608-3075 0010-9525
Popis:	When spacecraft cross the heliospheric plasma sheet (HPS) that separates large-scale magnetic sectors of opposite directions in the solar wind, multiple rapid fluctuations in the sign of the magnetic radial component are often observed. These fluctuations indicate the change of the sign of the azimuth electric current density within the HPS. Possible mechanisms of formation of the multilayered current structure of the HPS are proposed. Within the context of a stationary magnetohydrodynamic solar wind model, we test one of the most popular hypotheses regarding an extension of multiple current sheets from the streamer belt oriented along the neutral line of the solar magnetic field into the solar wind. Properties of self-consistent distributions of the solar wind key characteristics are investigated as function of the fine structure of streamers. The results show that both single and multiple streamers can be the source of the set of a multilayered structure with alternating azimuthal currents. The significance of the results for the interpretation of solar wind data is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6bffe0eb25f2a77f97657775c836560a https://doi.org/10.1134/s0010952520060076 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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