The Lapex experiment for observation of the supernova SN 1987A in hard X-rays

Details The Lapex experiment for observation of the supernova SN 1987A in hard X-rays The Lapex experiment for observation of the supernova SN 1987A in hard X-rays

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ncimc..13..437f&link_type=abstract

Nuovo Cimento C, Serie 1 (ISSN 0390-5551), vol. 13 C, Mar.-Apr. 1990, p. 437-444.

Astronomy and Astrophysics

Astronomy

2

Balloon-Borne Instruments, Supernova 1987A, X Ray Astronomy, Background Radiation, Balloon Flight, X Rays

Scientific paper

The Lapex payload is described in the configuration that will be launched to observe SN 1987A. The balloon flight is scheduled for Alice Springs (Australia) in April 1989 as a part of a NASA balloon campaign. The experiment aims at simultaneous observations of source and background in order to minimize systematic errors due to background variations. The limiting flux sensitivity of the instrument in the 20-200-keV energy band is about 2.5 mCrab for a 10,000-sec observation of SN 1987A. The presence of a Co-57 emission line in the SN 1987A photon spectrum could be detected down to an intensity level of 0.00008 photons/sq cm sec at the 99.7-percent confidence level.

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