The value of H(0) from the infrared Tully-Fisher relation

Astronomy and Astrophysics – Astronomy

Scientific paper

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Cosmology, Galactic Clusters, Hubble Constant, Infrared Astronomy, Distance, Galaxies, Magnitude, Tables (Data)

Scientific paper

Infrared H-0.5 magnitudes and the Tully-Fisher method are used to study the value of the Hubble constant from field galaxies and clusters of galaxies. Special attention is paid to the Malmquist and cluster population incompleteness biases. The slope of the direct TF relationship in the H-band is shown to be probably in the range 11.5 - 12.0. Both the field galaxies and the cluster galaxies provide values of H0 consistent with the authors' previous determinations using the B-band: H0 lies in the range 70 - 75 km s-1Mpc-1, when using de Vaucouleurs primary calibration.

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