H0, why the differences?

Details H0, why the differences? H0, why the differences?

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993rmxaa..26...73v&link_type=abstract

Revista Mexicana de Astronomia y Astrofisica, Vol. 26, p. 73 - 78

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7

Hubble Constant: Supernovae, Hubble Constant: Spiral Galaxies

Scientific paper

An up-to-date review of the present status of the distance scale problem is given. The local (v0 < 10000 km s-1) value of the Hubble parameter is found to be H0 = 83±6 km s-1Mpc-1. A global (v0 > 10000 km s-1) H0 = 76±9 km s-1Mpc-1 is derived. The reasons for some deviant results recently obtained by others are discussed. The main culprits appear to be (1) the assumption that SNeIa are good standard candles with uniform colors, and (2) the belief that the diameters of ScI galaxies are good yardsticks.

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