Hot flow anomaly remnant in the far geotail?
Abstract
A hot flow anomaly (HFA) like event was observed by the Solar TErrestrial RElations Observatory (STEREO) in the night side magnetosheath in the far tail in February-March 2007. The magnetic signature of the tangential discontinuity was visible, but the resolution of the plasma ion data is not sufficient for our analysis, so a method is given to identify HFAs without solar wind velocity measurements. The event observed in the night side magnetosheath in the far tail might be the remnant of an HFA event, a not-so-active current sheet. This observation suggests that the lifetime of the HFAs might be several 10 minutes, much longer than the expected several minutes.
Cite
@article{arxiv.1502.01290,
title = {Hot flow anomaly remnant in the far geotail?},
author = {Gábor Facskó and Andrea Opitz and Benoit Lavraud and Janet G. Luhmann and Christopher T. Russell and Jean-Andre Sauvaud and Andrei Fedorov and Árpád Kis and Viktor Wesztergom},
journal= {arXiv preprint arXiv:1502.01290},
year = {2015}
}
Comments
accepted on January 23, 2015 to Journal of Atmospheric and Solar-Terrestrial Physics. 5 pages, 2 figures