Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...277..361k&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 277, Feb. 1, 1984, p. 361-366. Research supported by the Alfred P. Sloan Fo
Astronomy and Astrophysics
Astrophysics
44
H Alpha Line, Stellar Evolution, Stellar Mass, Supernovae, B Stars, Carbon, Constraints, Dwarf Stars, Giant Stars, Hubble Constant, O Stars, Pulsars, Spiral Galaxies, Star Distribution, Star Formation Rate
Scientific paper
Star formation rates (SFR) for 175 nearby galaxies, derived from H-alpha emission data, are combined with the mean SN II rate to estimate the critical initial mass for a SN II progenitor. The best fitting SFR models, when combined with the observed SN II rate in face-on Sc galaxies, yield a lower limit mass for SN II progenitors of about 8 plus or minus 1 solar masses. A systematic underestimation of either the supernova rate or the Hubble constant used may lower this limit to 5-6 solar mases, but it is unlikely that the critical mass is lower than 5 or higher than 12 solar masses. The distribution of SN II in spiral arms of galaxies, and the low Galactic supernova rate, also suggest a mass limit of 8 plus or minus 3 solar masses. These limits are generally consistent with the recently determined progenitor masses of white dwarfs (Anthony-Twarog, 1982) and pulsars (Shipman and Green, 1980).
No associations
LandOfFree
Constraints on the masses of supernova progenitors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Constraints on the masses of supernova progenitors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraints on the masses of supernova progenitors will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1857656