Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26as...97...31f&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 97, no. 1, p. 31-33.
Astronomy and Astrophysics
Astronomy
Balloon-Borne Instruments, Gamma Ray Astronomy, Gamma Ray Spectrometers, X Ray Astronomy, X Ray Spectroscopy, Antarctic Regions, Background Radiation, Solar Flares, X Ray Sources
Scientific paper
Preliminary results are presented from HIREGS on its first long-duration balloon flight, during which it observed the sun and the Galactic center. During observations of the Galactic center, a clear excess in the continuum was found, and it is estimated that with the complete data set from four detectors, the present 2-sigma sensitivity for the 511 keV and Al-26 1809 keV lines should be about 0.0001 counts/sec sq cm and about 0.00001 counts/sec sq cm, respectively. To date, roughly 40 percent of the HIREGS data has been superficially scanned, without any prominent solar flares being found.
Cork Chris
Cotin F.
Feffer Paul T.
Hurley Kevin Christopher
Kane Sharad R.
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