The Malmquist bias in the extragalactic distance scale - Controversies and misconceptions

Details The Malmquist bias in the extragalactic distance scale - Controversies and misconceptions The Malmquist bias in the extragalactic distance scale - Controversies and misconceptions

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...328....4b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 328, May 1, 1988, p. 4-22.

Statistics

Computation

43

Astronomical Photometry, Cosmology, Hubble Constant, Virgo Galactic Cluster, Computational Astrophysics, Lyra Constellation, Morphology

Scientific paper

Several critical statements which have been made about the authors' work on the Malmquist bias in the Tully-Fisher relation are examined; they are shown to be unjustified and to rely on a misconception of the bias. It is emphasized that photometric distances such as those obtained from the TF relation are affected by a strong bias; properties of galaxies, when they are established from a sample whose distances are affected by a bias, are a priori suspected to be influenced by the bias and should not be taken as instrinsic ones. Both field and cluster samples, when restricted to unbiased data, lead to H0= 72±3 km s-1Mpc-1, with the primary calibration of de Vaucouleurs.

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