Revised supernova rates in Shapley-Ames galaxies
1989; IOP Publishing; Volume: 345; Linguagem: Inglês
10.1086/167946
ISSN1538-4357
AutoresRobert Evans, Sidney van den Bergh, R. D. McClure,
Tópico(s)Astronomy and Astrophysical Research
Resumoview Abstract Citations (106) References (11) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Revised Supernova Rates in Shapley-Ames Galaxies Evans, Robert ; van den Bergh, Sidney ; McClure, Robert D. Abstract Observations of 855 Shapley-Ames galaxies made during the period 1980 November 1-1988 October 31, together with improved supernova luminosities, have been used to derive the frequency of supernovae of differing types. For an average Shapley-Ames galaxy we find the following supernova rates: SN Ia (0.28 +/- 0.10)h^2^ SNU, SN Ib (0.27 +/- 0.15)h^2^ SNU, and SN Il (1.04 +/- 0.30)h^2^ SNU, in which 1 SNU is defined as one supernova per 10^10^L_B_(sun) per 100 yr. These rates are similar to those derived in our previous paper. Publication: The Astrophysical Journal Pub Date: October 1989 DOI: 10.1086/167946 Bibcode: 1989ApJ...345..752E Keywords: Galaxies; Supernovae; Luminosity; Statistical Analysis; Tables (Data); Astrophysics; GALAXIES: STELLAR CONTENT; STARS: STELLAR STATISTICS; STARS: SUPERNOVAE full text sources ADS | data products NED (862) SIMBAD (856)
Referência(s)