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Date and Time of the Query: 2019-05-26 T09:24:28 PDT
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For refcode 2012ApJ...749..174C:
Retrieve 112 NED objects in this reference.
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NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
2012ApJ...749..174C Cosmicflows-2: Type Ia Supernova Calibration and H_0_ Courtois, Helene M.; Tully, R. Brent Abstract. The construction of the Cosmicflows-2 compendium of distances involves the merging of distance measures contributed by the following methods: (Cepheid) period-luminosity, tip of the red giant branch (TRGB), surface brightness fluctuation (SBF), luminosity-linewidth (TF), fundamental plane (FP), and Type Ia supernova (SNIa). The method involving SNIa is at the top of an interconnected ladder, providing accurate distances to well beyond the expected range of distortions to Hubble flow from peculiar motions. In this paper, the SNIa scale is anchored by 36 TF spirals with Cepheid or TRGB distances, 56 SNIa hosts with TF distances, and 61 groups or clusters hosting SNIa with Cepheid, SBF, TF, or FP distances. With the SNIa scale zero-point set, a value of the Hubble constant is evaluated over a range of redshifts 0.03 < z < 0.5, assuming a cosmological model with Omega_ m_ = 0.27 and Omega_Lambda_ = 0.73. The value determined for the Hubble constant is H_0_ = 75.9 +/- 3.8 km s^-1^ Mpc^-1^. Key words: distance scale, galaxies: distances and redshifts
Retrieve 112 NED objects in this reference.
Please click here for ADS abstract

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