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Pulsed Flows Along a Cusp Structure Observed with SOO/AIAWe present observations of a cusp-shaped structure that formed after a flare and coronal mass ejection on 14 February 2011. Throughout the evolution of the cusp structure, blob features up to a few Mm in size were observed flowing along the legs and stalk of the cusp at projected speeds ranging from 50 to 150 km/sec. Around two dozen blob features, on order of 1 - 3 minutes apart, were tracked in multiple AlA EUV wavelengths. The blobs flowed outward (away from the Sun) along the cusp stalk, and most of the observed speeds were either constant or decelerating. We attempt to reconstruct the 3-D magnetic field of the evolving structure, discuss the possible drivers of the flows (including pulsed reconnect ion and tearing mode instability), and compare the observations to studies of pulsed reconnect ion and blob flows in the solar wind and the Earth's magnetosphere.
Document ID
20110011681
Acquisition Source
Goddard Space Flight Center
Document Type
Other
Authors
Thompson, Barbara
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Demoulin, P.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mandrini, C. H.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mays, M. L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Ofman, L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Driel-Gesztelyi, L. Van
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Viall, N. M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 25, 2013
Publication Date
January 1, 2011
Subject Category
Astrophysics
Report/Patent Number
GSFC.ABS.4267.2011
Report Number: GSFC.ABS.4267.2011
Distribution Limits
Public
Copyright
Public Use Permitted.
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