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A comparison of photospheric electric current and ultraviolet and X-ray emission in a solar active regionThis paper presents an extensive set of coordinated observations of a solar active region, taking into account spectroheliograms obtained with the aid of the Solar Maximum Mission (SMM) Ultraviolet Spectrometer Polarimeter (UVSP) instrument, SMM soft X-ray polychromator (XRP) raster maps, and high spatial resolution ultraviolet images of the sun in Lyman-alpha and in the 1600 A continuum. These data span together the upper solar atmosphere from the temperature minimum to the corona. The data are compared to maps of the inferred photospheric electric current derived from the Marshall Space Flight Center (MSFC) vector magnetograph observations. Some empirical correlation is found between regions of inferred electric current density and the brightest features in the ultraviolet continuum and to a lesser extent those seen in Lyman-alpha within an active region.
Document ID
19860040427
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Haisch, B. M. (Lockheed Missiles and Space Co. Palo Alto, CA, United States)
Bruner, M. E. (Lockheed Research Laboratories Palo Alto, CA, United States)
Hagyard, M. J. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Bonnet, R. M. (ESA Paris, France)
Date Acquired
August 12, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 300
ISSN: 0004-637X
Subject Category
SOLAR PHYSICS
Funding Number(s)
CONTRACT_GRANT: NAS5-23758
CONTRACT_GRANT: NAS5-25727
Distribution Limits
Public
Copyright
Other