Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988esasp.281a.107s&link_type=abstract
In ESA, A Decade of UV Astronomy with the IUE Satellite, Volume 1 p 107-110 (SEE N89-10682 01-89)
Astronomy and Astrophysics
Astronomy
Iue, Spaceborne Astronomy, Stellar Evolution, Supernova 1987A, Ultraviolet Astronomy, Spectrum Analysis, Ultraviolet Spectra
Scientific paper
Spatially resolved IUE spectra (1150 to 2000 A) taken at the position of SN 1987A in March 1987 show that the 12th mag B3 I star Sk -69 deg 202 disappeared. Only the fainter companion stars (Star 2 and Star 3) are present near the site of the supernova. It is concluded that Sk -69 deg 202 exploded to produce SN 1987A. The known characteristics of Sk -69 deg 202 are consistent with the interpretation that the progenitor was a relatively compact star, having a high-velocity low-density stellar wind prior to the outburst. Recent IUE spectra of SN 1987A (May 1988) show no evidence that Sk -69 deg 202 still exists inside the expanding ejecta.
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