NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-17 T10:59:27 PDT
Help | Comment | NED Home

For refcode 2000ApJ...529..698S:
Retrieve 43 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
2000ApJ...529..698S The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XXIV. The Calibration of Tully-Fisher Relations and the Value of the Hubble Constant Shoko Sakai, Jeremy R. Mould, Shaun M. G. Hughes, John P. Huchra, Lucas M. Macri, Robert C. Kennicutt, Jr., Brad K. Gibson, Laura Ferrarese, Wendy L. Freedman, Mingsheng Han, Holland C. Ford, John A. Graham, Garth D. Illingworth, Daniel D. Kelson, Barry F. Madore, Kim Sebo, N. A. Silbermann, and Peter B. Stetson Received 1999 May 20; accepted 1999 September 17 ABSTRACT This paper presents the calibration of BVRIH_-0.5_ Tully-Fisher relations based on Cepheid distances to 21 galaxies within 25 Mpc and 23 clusters within 10,000 km s^-1^. These relations have been applied to several distant cluster surveys in order to derive a value for the Hubble constant, H_0_, mainly concentrating on an I-band all-sky survey by Giovanelli and collaborators, consisting of total I magnitudes and 50% line width data for ~550 galaxies in 16 clusters. For comparison, we also derive the values of H_0_ using surveys in the B and V bands by Bothun and collaborators, and in H band by Aaronson and collaborators. Careful comparisons with various other databases from the literature suggest that the H-band data, which have isophotal magnitudes extrapolated from aperture magnitudes rather than total magnitudes, are subject to systematic uncertainties. Taking a weighted average of the estimates of Hubble constants from four surveys, we obtain H_0_ = 71 +/- 4 (random) +/- 7 (systematic). We have also investigated how the value of H_0_ is affected by various systematic uncertainties, such as the internal extinction correction method used, Tully-Fisher slopes and shapes, a possible metallicity dependence of the Cepheid period-luminosity relation, and cluster population incompleteness bias. Subject headings: distance scale-galaxies: distances and redshifts - galaxies: kinematics and dynamics-galaxies: photometry
Retrieve 43 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home