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Solar Wind Charge Exchange During Geomagnetic StormsOn March 31st. 2001, a coronal mass ejection pushed the subsolar magnetopause to the vicinity of geosynchronous orbit at 6.6 RE. The NASA/GSFC Community Coordinated Modeling Center (CCMe) employed a global magnetohydrodynamic (MHD) model to simulate the solar wind-magnetosphere interaction during the peak of this geomagnetic storm. Robertson et aL then modeled the expected 50ft X-ray emission due to solar wind charge exchange with geocoronal neutrals in the dayside cusp and magnetosheath. The locations of the bow shock, magnetopause and cusps were clearly evident in their simulations. Another geomagnetic storm took place on July 14, 2000 (Bastille Day). We again modeled X-ray emission due to solar wind charge exchange, but this time as observed from a moving spacecraft. This paper discusses the impact of spacecraft location on observed X-ray emission and the degree to which the locations of the bow shock and magnetopause can be detected in images.
Document ID
20120011917
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Robertson, Ina P. (Kansas Univ. Lawrence, KS, United States)
Cravens, Thomas E. (Kansas Univ. Lawrence, KS, United States)
Sibeck, David G. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Collier, Michael R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kuntz, K. D. (Johns Hopkins Univ. Baltimore, MD, United States)
Date Acquired
August 26, 2013
Publication Date
April 1, 2012
Publication Information
Publication: Astronomical Notes
Volume: 333
Issue: 4
Subject Category
Geophysics
Report/Patent Number
GSFC.JA.01145.2012
Distribution Limits
Public
Copyright
Other