Bibliography
Notice:
|
Found 3 entries in the Bibliography.
Showing entries from 1 through 3
2021 |
Spatial structures in solar wind superthermal electrons and polar rain aurora We report a special polar rain aurora case around 11:24 UT on October 27, 2003, where intense polar rain electrons produced observable polar rain auroral emission with the shape of a roughly dawn-dusk aligned bar. Associated solar wind speed and density observations during the event were around 450 km/s and 2.5 cm−3 respectively. The interplanetary magnetic field (IMF) components Bx, By, and Bz were \textasciitilde5, −3, and 5 nT respectively. The negative By condition likely caused the dawnside shift and slight tilt of the polar rain aurora bar. Furthermore, although Kelvin-Helmholtz waves on the high latitude magnetopause have been previously reported to induce dawn-dusk aligned auroral bars (Zhang et al., 2007), the solar wind and IMF conditions of the event are not favorable for generating them (Zhang et al., 2013) and are therefore not a likely cause. Instead, coincident observations by the Geotail satellite show enhanced anti-sunward flux in the solar wind superthermal electrons (7 eV–42 keV) around the time of the auroral bar. The solar wind superthermal electron spatial size, when mapped into the polar ionosphere, is consistent with the width of the auroral bar, confirming a connection between the two. Herschbach, Dennis; Zhang, Yongliang; Published by: Journal of Atmospheric and Solar-Terrestrial Physics Published on: jul YEAR: 2021   DOI: 10.1016/j.jastp.2021.105633 Magnetosphere interaction; Polar rain aurora; Polar rain electrons; solar wind; Solar wind superthermal electrons |
2020 |
Case Study of Asymmetries in Polar Rain Aurora Herschbach, Dennis; Zhang, Yongliang; Published by: Published on: |
2019 |
Case Study of Dawn-Dusk Asymmetry in Polar Rain Aurora Herschbach, Dennis; Zhang, Yongliang; Published by: Published on: |
1