X-ray-luminous radio supernovae in the centre of M82?

Details X-ray-luminous radio supernovae in the centre of M82? X-ray-luminous radio supernovae in the centre of M82?

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999mnras.308l..23s&link_type=abstract

Monthly Notices, Volume 308, Issue 3, pp. L23-L27.

Physics

10

Scientific paper

We investigate the X-ray emission from the central regions of the prototypical starburst galaxy M82. Previous observations have shown a bright central X-ray point source, with suggestions as to its nature including a low-luminosity active galactic nucleus or an X-ray binary. A new analysis of ROSAT HRI observations finds four X-ray point sources in the central kiloparsec of M82, and we identify radio counterparts for the two brightest X-ray sources. The counterparts are probably young radio supernovae (SNe) and are amongst the most luminous and youthful SNe in M82. We therefore suggest that we are seeing X-ray emission from young SNe in M82, and in particular that the brightest X-ray source is associated with the radio source 41.95+57.5. We discuss the implications of these observations for the evolution of X-ray-luminous SNe.

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