X-rays from supernova 1987A - Beneath the radioactive layers

Details X-rays from supernova 1987A - Beneath the radioactive layers X-rays from supernova 1987A - Beneath the radioactive layers

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...344..844b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 344, Sept. 15, 1989, p. 844-847.

Astronomy and Astrophysics

Astrophysics

1

Emission Spectra, Supernova 1987A, X Ray Sources, Gamma Ray Spectra, Neutron Stars, Nuclear Fusion, Radioactive Materials

Scientific paper

The detection of X-rays from Sn 1987A is providing important information about the processes taking place in the early evolution of SNs. In the energy range above 20 keV, down-Comptonization of gamma-ray lines emitted by Co-56 represents a significant source of X-rays. If the emission is dominated by this process, the presence of 0.07 solar mass of Co-56 means that the hard X-ray flux should dramatically decrease around the end of 1988, independent of any assumption about the envelope structure. The X-ray flux below 20 keV arises probably from a nonthermal nebula produced by a rotating neutron star.

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