The Hubble Parameter revisited

Details The Hubble Parameter revisited The Hubble Parameter revisited

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pasp..106.1113v&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 106, no. 705, p. 1113-1119

Astronomy and Astrophysics

Astronomy

24

Data Reduction, Distance, Hubble Constant, Spiral Galaxies, Supernovae, Brightness Distribution, Cepheid Variables, Globular Clusters, Luminosity, Planetary Nebulae

Scientific paper

Observations obtained during the last two years are reviewed, and are summarized. These new data appear to have slightly shifted the balance of evidence towards larger values of H0. In particular, it is argued that supernovae of Type Ia have a large luminosity dispersion at maximum light, and may therefore not be good standard candles. Furthermore, spiral galaxies of a given Hubble type and luminosity class have too large a range in diameters to be useful as standard meter sticks. On balance available evidence suggests that H0 equal to or greater than 75 km/s/Mpc.

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