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The Virgo Cluster

Published online by Cambridge University Press:  26 February 2013

Jeremy Mould
Jeremy Mould*
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University, Hawthorn 3122, Australia ARC Centre of Excellence for All-sky Astrophysics (CAASTRO) email: jmould@swin.edu.au
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Abstract

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In the era of precision cosmology, the Virgo cluster takes on a new role in the cosmic distance scale. Its traditional role of testing the consistency of secondary distance indicators is replaced by an ensemble of distance measurements within the Local Supercluster, united by a velocity-field model obtained from a reconstruction based on redshift surveys. The Wilkinson Microwave Anisotropy Probe (WMAP) leads us to see the Hubble constant as one of six parameters in a standard model of cosmology with considerable covariance among parameters. Independent experiments, such as WMAP, the Hubble Space Telescope Key Project on the Extragalactic Distance Scale, and their successors constrain these parameters.

Keywords

surveysgalaxies: distances and redshifts
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S289: Advancing the Physics of Cosmic Distances , August 2012 , pp. 262 - 268
Copyright
Copyright © International Astronomical Union 2013

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