Possible local variation of the Hubble constant in van den Bergh's calibration of Sc-type galaxies

Details Possible local variation of the Hubble constant in van den Bergh's calibration of Sc-type galaxies Possible local variation of the Hubble constant in van den Bergh's calibration of Sc-type galaxies

Oct 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975natur.257..773d&link_type=abstract

Nature, Volume 257, Issue 5529, pp. 773-774 (1975).

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Scientific paper

IN an important series of papers for the determination of the Hubble constant, Sandage and Tammann1-6 have concluded that the Universe is expanding in a remarkably uniform and isotropic way, with Hubble constant (H) 55+/-5 km s-1 Mpc-1. If true, this result is evidently crucial for all future cosmological models. As a consequence it should be tested and analysed in all possible ways. Their low H value is evidently based on their recalibration of the absolute magnitudes of the various luminosity classes of Sc-type galaxies based on two samples of nearby, and one sample of distant galaxies (Tables 3 and 4, ref. 5, and the Table, ref. 6).

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