Journal
ASTROPHYSICAL JOURNAL
Volume 770, Issue 1, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/0004-637X/770/1/38
Keywords
acceleration of particles; solar-terrestrial relations; solar wind; Sun: coronal mass ejections (CMEs); Sun: flares
Categories
Funding
- National Aeronautics and Space Administration under NASA Grant [NAS5-00133]
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The giant, superfast, interplanetary coronal mass ejection, detected by STEREO A on 2012 July 23, well away from Earth, appears to have reached 1 AU with an unusual set of leading bow waves resembling in some ways a subsonic interaction, possibly due to the high pressures present in the very energetic particles produced in this event. Eventually, a front of record high-speed flow reached STEREO. The unusual behavior of this event is illustrated using the magnetic field, plasma, and energetic ion observations obtained by STEREO. Had the Earth been at the location of STEREO, the large southward-oriented magnetic field component in the event, combined with its high speed, would have produced a record storm.
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