Type I supernovae come from short-lived stars

Abstract

view Abstract Citations (141) References (17) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Type I supernovae come from short-lived stars. Oemler, A., Jr. ; Tinsley, B. M. Abstract Statistics for a sample of 178 supernovae in external galaxies are presented which show convincingly that at least most Type I supernovae (SN I), viz., those in spiral and irregular galaxies, are associated with a young stellar population. Relative SN rates in galaxies of different types are discussed which establish an association between SN I and newly formed stars, at least in spirals and irregulars, and SN rates in spirals are derived as a function of color, confirming this association. Problems of associating SN I in elliptical galaxies with ongoing star formation are also considered. It is concluded that SN I have fairly short-lived precursors, with lifetimes between a few tens of millions of years and a few hundred million years. Publication: The Astronomical Journal Pub Date: July 1979 DOI: 10.1086/112502 Bibcode: 1979AJ.....84..985O Keywords: Galactic Structure; Stellar Evolution; Supernovae; Distance; Elliptical Galaxies; Protostars; Spiral Galaxies; Stellar Luminosity; Astrophysics; Galaxies:Supernovae; Supernovae:Statistics full text sources ADS |