SIMBAD references

2008ApJ...686L..75M - Astrophys. J., 686, L75-L78 (2008/October-3)

The extragalactic distance scale without Cepheids.

MOULD J. and SAKAI S.

Abstract (from CDS):

Distances of galaxies in the Hubble Space Telescope Key Project are based on the Cepheid period-luminosity relation. An alternative basis is the tip of the red giant branch. Using archival HST data, we calibrate the infrared Tully-Fisher relation using 14 galaxies with tip of the red giant branch measurements. Compared with the Key Project, a higher value of the Hubble constant by 10%±7% is inferred. Within the errors the two distance scales are therefore consistent. We describe the additional data required for a conclusive tip of the red giant branch measurement of H0.

Abstract Copyright:

Journal keyword(s): Cosmology: Distance Scale - Galaxies: Distances and Redshifts

Simbad objects: 16

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