The ultraviolet spectrum of an oxygen-rich supernova remnant in the Small Magellanic Cloud

Details The ultraviolet spectrum of an oxygen-rich supernova remnant in the Small Magellanic Cloud The ultraviolet spectrum of an oxygen-rich supernova remnant in the Small Magellanic Cloud

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...338..812b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 338, March 15, 1989, p. 812-823.

Astronomy and Astrophysics

Astrophysics

37

Magellanic Clouds, Oxygen Spectra, Supernova Remnants, Ultraviolet Spectra, Abundance, Cosmic X Rays, Emission Spectra, Iue, Photoionization, Shock Waves

Scientific paper

Ultraviolet and optical spectra data are presented for the oxygen-rich supernova remnant 1E 0102-7219 in the SMC. These UV data are the first to seriously constrain the UV emission from an oxygen-rich remnant. Emission lines of O I, forbidden O II, semiforbidden O III, semiforbidden O IV, C IV, forbidden Ne IV, and Mg II have been unambiguously detected in the UV. Shock models for material with abundances appropriate to massive stellar ejecta are calculated, and a number of differences between these models and the observations are found. The UV lines are observed to be weaker relative to optical lines than expected from models. Models of photoionization by the remnant's X-ray emission are calculated, and these provide a better qualitative match to the observed spectra. Approximate abundances in the ejecta are derived and the implications these have for the precursor star are discussed.

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