单词 | plasma sheet |
释义 | plasma sheetn. Physics. A layer of plasma in the magnetotail of the earth, which lies in the equatorial plane some distance beyond the plasmapause and has two divergent branches that reach the earth in polar latitudes. ΘΚΠ the world > the earth > weather and the atmosphere > [noun] > cloud or layer of plasma plasma cloud1960 plasma sheet1966 1966 Physical Rev. Lett. 16 138 (heading) Electrons in the plasma sheet of the earth's magnetic tail. 1970 V. M. Vasyliunas in G. Skovli Polar Ionosphere ii. 27 Intense fluxes of electrons extend across the entire magnetotail, forming the plasma sheet, first detected by the Luna 2 space probe in 1959. 1988 Physics Bull. Feb. 68/3 In the centre of the earth's tail is the plasma sheet where disruptions generating bright auroras at the earth and propelling vast bodies of hot magnetised gas (plasmoids) into interplanetary space can occur. 1993 D. A. Bryant in R. O. Dandy Plasma Physics i. ix. 223 The plasmasheet boundary layer forms at the boundary between the hot and dense plasmasheet and the relatively cool, diffuse plasma of the tail lobes. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < |
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