Please use this identifier to cite or link to this item: http://hdl.handle.net/2381/39489
Title: An analysis of magnetic reconnection events and their associated auroral enhancements
Authors: Case, N. A.
Grocott, A.
Milan, S. E.
Nagai, T.
Reistad, J. P.
First Published: 18-Feb-2017
Publisher: American Geophysical Union (AGU), Wiley
Citation: Journal of Geophysical Research: Space Physics, 2017, 122
Abstract: An analysis of simultaneous reconnection events in the near-Earth magnetotail and enhancements in the aurora is undertaken. Exploiting magnetospheric data from the Geotail, Cluster, and Double Star missions, along with auroral images from the IMAGE and Polar missions, the relationship between a reconnection signature and its auroral counterpart is explored. In this study of 59 suitable reconnection events, we find that 43 demonstrate a clear coincidence of reconnection and auroral enhancement. The magnetic local time (MLT) locations of these 43 reconnection events are generally located within ±1 h MLT of the associated auroral enhancement. A positive correlation coefficient of 0.8 between the two MLT locations is found. The enhancements are localized and short-lived (τ≤10 min) and are as likely to occur during the substorm process as in isolation of a substorm. No significant dependence of the reconnection or auroral enhancement location on the dusk-dawn components of the solar wind velocity (Vy), IMF (By) or local By or Vy, as measured by the reconnection-detecting spacecraft, is found.
DOI Link: 10.1002/2016JA023586
ISSN: 2169-9380
eISSN: 2169-9402
Links: http://onlinelibrary.wiley.com/doi/10.1002/2016JA023586/abstract
http://hdl.handle.net/2381/39489
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © 2017, American Geophysical Union (AGU), Wiley. Deposited with reference to the publisher’s open access archiving policy.
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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