ROSAT observations of SN 1993J in M81.

Details ROSAT observations of SN 1993J in M81. ROSAT observations of SN 1993J in M81.

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996rftu.proc..289z&link_type=abstract

International Conference on X-ray Astronomy and Astrophysics: Röntgenstrahlung from the Universe, p. 289 - 290

Astronomy and Astrophysics

Astrophysics

1

Supernovae: X-Ray Light Curves

Scientific paper

Although detections of supernovae by optical instruments are not rare, X-ray emission from these events has been observed only in a few cases. The most detailed X-ray light curves have been collected from SN 1993J in M81. The authors report on results obtained from observations with the ROSAT observatory during the initial 2 yr after the explosion. While during the first year the (unabsorbed) luminosity decreased by almost a factor 6, from initially 2.6×1039erg/s in the ROSAT band (0.1 to 2.4 keV), since then it is consistent with a constant or even slowly rising behaviour. Published numerical model calculations indicate that a more complex density distribution of the circumstellar matter is required to explain details of the X-ray light curve and the spectra.

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