Balloon-borne measurements of the SN1987A hard X ray continuum

Details Balloon-borne measurements of the SN1987A hard X ray continuum Balloon-borne measurements of the SN1987A hard X ray continuum

Feb 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994bda..workt....p&link_type=abstract

In Alabama Univ., BATSE Data Analysis 1 p (SEE N94-26685 07-93)

Mathematics

Cobalt Isotopes, Continuous Spectra, In-Flight Monitoring, Supernova 1987A, X Ray Spectra, Balloon Flight, Mathematical Models, Matrices (Mathematics), Measuring Instruments

Scientific paper

SN1987A hard x ray continuum spectra obtained on 29 Oct. 1987, 9-10 Apr. 1988, and 11 Nov. 1988, from balloon flight measurements are presented. The spectra, spanning the energy range from 25 keV to 300 keV, were analyzed using a detector response matrix inversion technique that converts the spectra from counts/sec-sq cm-kev to photons/sec-sq cm-kev allowing direct comparison with theoretical models. The results indicate that the bulk of the Co-56 is mixed moderately through the inner regions of the SN envelope but they do not preclude the mixing of a small amount of the Co-56 further out into the envelope necessary to account for the observed Co-56 line fluxes. The effect of the ratio of Co-57 to Co-56 on the 11 Nov. 1988, continuum spectrum is discussed.

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