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Title:
The Hubble diagram in V for supernovae of Type IA and the value of H(0) therefrom
Authors:
Sandage, Allan; Tammann, G. A.
Affiliation:
AA(Carnegie Institution of Washington, Observatoires, Pasadena, CA), AB(Basel Univ., Binningen, Switzerland; ESO, Garching bei München, Germany)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 415, no. 1, p. 1-9. (ApJ Homepage)
Publication Date:
09/1993
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Cepheid Variables, Galactic Structure, Hubble Space Telescope, Supernovae, Astronomical Photometry, Calibrating
DOI:
10.1086/173137
Bibliographic Code:
1993ApJ...415....1S

Abstract

The Hubble diagram for Type I supernovae is derived in V and is summarized from the literature in B and in m(pg). The ridge line equation of the diagram in V and the calibration of the absolute magnitudes at maximum are presented. The intrinsic (B - V) color at B maximum light is 0.09 +/- 0.04 mag. The Virgo Cluster distance is derived and found to be 23.9 +/- 2.4 Mpc. This Virgo distance gives the cosmic value of the Hubble constant to be H(0) = 47 +/- 5 km/sec per Mpc.

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