Observations of the antique wind of SN 1987 A

Details Observations of the antique wind of SN 1987 A Observations of the antique wind of SN 1987 A

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988msngr..52...14w&link_type=abstract

ESO Messenger (ISSN 0722-6691), June 1988, p. 14-16.

Astronomy and Astrophysics

Astronomy

14

Astronomical Spectroscopy, Stellar Winds, Supernova 1987A, Emission Spectra, Fluorescence, Forbidden Bands, Shock Fronts, Stellar Evolution, Velocity Distribution

Scientific paper

Green spectra obtained for SN 1987 A in the last days of 1987 show strong, narrow lines of forbidden O III. Arguments are presently adduced for the characterization of these observation results as indications of fluorescence radiation that is due to the ionization, by SN 1987 A's UV flash, of a shock front that had been generated in the progenitor wind during the star's progression from red to blue supergiant stage. The red supergiant wind is designated 'antique' to emphasize that it stopped blowing at about the time when human civilization began.

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