The YOHKOH Wide-Band Spectrometer - Performance and initial results

Details The YOHKOH Wide-Band Spectrometer - Performance and initial results The YOHKOH Wide-Band Spectrometer - Performance and initial results

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasj...44l..51y&link_type=abstract

PASJ: Publications of the Astronomical Society of Japan (ISSN 0004-6264), vol. 44, no. 5, p. L51-L54.

Astronomy and Astrophysics

Astronomy

7

Gamma Ray Astronomy, Satellite-Borne Instruments, Solar Spectra, Solar Spectrometers, Solar X-Rays, Broadband, Japanese Spacecraft, Solar Flares

Scientific paper

Descriptions of the in-flight performance of the Wide-Band Spectrometer (WBS) and the initial results of both gamma-ray and hard X-ray observations are presented. The gamma-ray observations indicate that there are two types of gamma-ray flares. The 1991 October 27 flare emitted strong gamma-ray lines, while the 1991 December 3 flare emitted a strong bremsstrahlung continuum spectrum extending to 10 MeV. The hard X-ray observation of the 1991 November 10 flare shows that the spectrum shape significantly varies with the time and spectral index, since the high-energy band (80-600 keV) varies largely with time, compared with that for the low-energy band (20-80 keV).

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