The progenitor of SN 1987A - Spatially resolved ultraviolet spectroscopy of the supernova field

Details The progenitor of SN 1987A - Spatially resolved ultraviolet spectroscopy of the supernova field The progenitor of SN 1987A - Spatially resolved ultraviolet spectroscopy of the supernova field

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...323l..35s&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 323, Dec. 1, 1987, p. L35-L39.

Astronomy and Astrophysics

Astrophysics

48

Astronomical Spectroscopy, Iue, Supernova 1987A, Gravitational Collapse, Spatial Resolution, Temporal Distribution, Ultraviolet Spectra

Scientific paper

Careful deconvolution of spatially resolved IUE ultraviolet spectra shows that only two of the three stars detected in plate material before 1987 are now present near the site of SN 1987A. The separation, magnitudes, and spectra of these two are consistent with their identification as star 2 and star 3 of the Sanduleak -69°202 trio. The clear implication is that star 1, the 12th mag B3 I star, has disappeared, and it may be identified as the progenitor of SN 1987A.

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