A Coronal Hole's Effects on CME Shock Morphology in the Inner Heliosphere
| Autor: | Wood, B. E., Wu, C. - C., Rouillard, A. P., Howard, R. A., Socker, D. G. |
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| Rok vydání: | 2012 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/0004-637X/755/1/43 |
| Popis: | We use STEREO imagery to study the morphology of a shock driven by a fast coronal mass ejection (CME) launched from the Sun on 2011 March 7. The source region of the CME is located just to the east of a coronal hole. The CME ejecta is deflected away from the hole, in contrast with the shock, which readily expands into the fast outflow from the coronal hole. The result is a CME with ejecta not well centered within the shock surrounding it. The shock shape inferred from the imaging is compared with in situ data at 1 AU, where the shock is observed near Earth by the Wind spacecraft, and at STEREO-A. Shock normals computed from the in situ data are consistent with the shock morphology inferred from imaging. Comment: to appear in The Astrophysical Journal |
| Databáze: | arXiv |
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