X-ray emission from MSH 14-63 - Probable remnant of the A.D. 185 supernova

Astronomy and Astrophysics – Astronomy

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Radio Sources (Astronomy), Supernova Remnants, X Ray Astronomy, Astronomical Spectroscopy, Oso-7, Radiant Flux Density

Scientific paper

Observations during 1972 from an experiment on OSO 7 detected a 2-10-keV X-ray flux of 1.7 by 10 to the -10th power erg/sq cm per sec from a source coincident with MSH 14-63, the most probable candidate for association with the A.D. 185 supernova. Both the present data and those of Naranan et al. (1977) at lower energy can be fitted by a dual-temperature thermal spectrum similar to that observed in other young supernova remnants. Model calculations indicate that a mass in excess of 5 solar masses must have been ejected in the A.D. 185 supernova event.

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