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LASCO/EIT Observations of Coronal Mass Ejections from Large-Scale Filament Channels

Published online by Cambridge University Press:  12 April 2016

S.P. Plunket
Affiliation:
E.O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, DC 20375, USA
K.P. Dere
Affiliation:
E.O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, DC 20375, USA
R.A. Howard
Affiliation:
E.O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, DC 20375, USA
D.J. Michels
Affiliation:
E.O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, DC 20375, USA
G.E. Brueckner
Affiliation:
E.O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, DC 20375, USA
B.J. Thompson
Affiliation:
NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
J.-P. Delaboudinière
Affiliation:
Institut d’Astrophysique Spatiale, Université Paris XI, 91405 Orsay Cedex, France
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Abstract

Solar activity in the latter half of 1996 was dominated by the presence of an extended filament channel in the southern hemisphere, forming a switchback configuration where it merged with the polar crown. Several large coronal mass ejections (CMEs) were observed to originate on or near this magnetic neutral line by the LASCO and EIT instruments on SOHO. As this channel gradually disappeared, a new, extended channel formed to the west of the old one, and this new channel also produced a number of large CMEs. We report here on observations of two events (December 23, 1996 and February 7,1997), and discuss the global nature of these events.

Type
Global Patterns
Copyright
Copyright © Astronomical Society of the Pacific 1998

References

Brueckner, G.E. et al. 1995, Solar Phys., 162, 357 CrossRefGoogle Scholar
Delaboudinière, J.-P. et al. 1995, Solar Phys., 162, 291 CrossRefGoogle Scholar
Dere, K.P. et al. 1997, Solar Phys., 175, 601 CrossRefGoogle Scholar
Gopalswamy, N. 1997, SHINE Report on the February 7, 1997 CMEGoogle Scholar
Plunkett, S.P. et al. 1997, in The Corona and Solar Wind Near Minimum Activity, ESA SP-404, ESA: Noordwijk, Holland, p. 615 Google Scholar
Thompson, B.J. 1998, in preparationGoogle Scholar

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