High energy phenomena in the supernova 1987A and its hypothetical central pulsar

Details High energy phenomena in the supernova 1987A and its hypothetical central pulsar High energy phenomena in the supernova 1987A and its hypothetical central pulsar

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990nuphs..14...99p&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 14, Issue 2, p. 99-100.

Physics

Nuclear Physics

Scientific paper

The presence of a substantial flux of hard X-rays (>~ 20 KeV) from SN 1987 A has been widely interpreted as due to down-compotonization of nuclear gamma ray lines from Co56 taking place in the expanding envelope. This is supported by the parallel detection of the nuclear lines and by the fact that the hard X-rays have started to decay in the Fall of 1988, as expected.
The presence and persistence of a softer X-ray flux in the range 6-20 KeV cannot be interpreted along the same lines and can perhaps be ascribed to non-thermal radiation from a central pulsar-powered nebula. We will discuss the requirements and expectations of this model, as well as the significance of the 0.5 millisecond optical pulsar which has been recently reported to exist in SN 1987 A.

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