| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10705300 | Planetary and Space Science | 2011 | 8 Pages |
Abstract
⺠This paper reports that a new type of polar cap aurora, dawn-dusk aligned polar cap aurora (DDAPCA), was detected during the exceptionally intense January 21, 2005 substorm (AEmax=3504 nT). ⺠This transpolar aurora event was developed during the southward IMF. ⺠It is different from the “theta aurora” and “double oval”. ⺠It is speculated that the DDAPCA arises from the formation of an X-line in the distant (>80RE) tail due to polar cap magnetic field reconnection under unusually high solar wind compression conditions.
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Physical Sciences and Engineering
Earth and Planetary Sciences
Geophysics
Authors
A.M. Du, W. Sun, B.T. Tsurutani, R.N. Boroyev, A.V. Moiseyev,