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Gamma-Ray and Optical Observation of the 1979 November 8 Solar Flare

Riegler, Guenter R. and Ling, James C. and Mahoney, William A. and Prince, Thomas A. and Wheaton, William A. and Willett, James B. and Zirin, Harold and Jacobson, Allan S. (1982) Gamma-Ray and Optical Observation of the 1979 November 8 Solar Flare. Astrophysical Journal, 259 (1). pp. 392-396. ISSN 0004-637X. doi:10.1086/160176.

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The solar flare on 1979 November 8 11h 21m 28s UT was observed by the Tel Aviv telescope of the Big Bear Solar Observatory and the High Resolution Gamma-Ray Spectrometer on the High Energy Astronomy Observatory HEAO 3. Photographs in Hα show the development of the flare and a subsequent Moreton wave. Although the flare was not detected with the high spectral resolution germanium detectors, the HEAO C-1 CsI shield detected a statistically significant signal above 80 keV, from 420 to 585 keV, and above 3.8 MeV. The temporal structure of microwave, optical, X-ray, and gamma-ray emission is consistent to within ~1 s with a simultaneous flare response at all energies. There is no evidence for either second-stage acceleration of charged particles (Bai and Ramaty, 1979) or a delay between gamma-ray and X-ray continuum emission due to energy-dependent electron energy loss times (Bai and Ramaty).

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Prince, Thomas A.0000-0002-8850-3627
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Additional Information:© 1982 American Astronomical Society. Provided by the NASA Astrophysics Data System. Received 1980 December 8; accepted 1982 February 18. This work was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under NASA contract NAS7-100. The Tel Aviv Telescope is supported by the Atmospheric Sciences Section of the National Science Foundation under grant ATM79-11139. Space Radiation Laboratory SRL ID #: 1981-21.
Group:Space Radiation Laboratory
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Subject Keywords:gamma rays: general - Sun: flares
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Space Radiation Laboratory1981-21
Issue or Number:1
Record Number:CaltechAUTHORS:20140417-154129989
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45042
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Deposited On:23 Apr 2014 19:18
Last Modified:10 Nov 2021 16:59

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