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Magnetic field configuration associated with solar gamma ray flares in June, 1991The vector magnetic field configuration of the solar active region AR 6659 that produced very high levels of flare activity in Jun. 1991 is described. The morphology and evolution of the photospheric fields are described for the period 7-10 Jun., and the flares taking place around these dates and their locations relative to the photospheric fields are indicated. By comparing the observed vector field with the potential field calculated from the observed line-of-sight flux, we identify the nonpotential characteristics of the fields along the magnetic neutral lines where the flares were observed. These results are compared with those from the earlier study of gamma-ray flares.
Document ID
19920012699
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hagyard, M. J. (Ecole Normale Superieure Lyon (France)., United States)
West, E. A. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Smith, J. E. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Trussart, F.-M. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Kenney, E. G. (Boeing Co. Huntsville, AL., United States)
Date Acquired
September 6, 2013
Publication Date
February 1, 1992
Publication Information
Publication: NASA. Goddard Space Flight Center, The Compton Observatory Science Workshop
Subject Category
Solar Physics
Accession Number
92N21942
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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