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The 6dF Galaxy Survey: Mass and Motions in the Local Universe

Published online by Cambridge University Press:  23 September 2016

Matthew Colless ,
Heath Jones ,
Lachlan Campbell ,
Daniel Burkey ,
Andy Taylor  and
Will Saunders
Matthew Colless
Affiliation:
Research School of Astronomy & Astrophysics, The Australian National University, Cotter Road, Weston Creek, ACT 2611, Australia
Heath Jones
Affiliation:
Research School of Astronomy & Astrophysics, The Australian National University, Cotter Road, Weston Creek, ACT 2611, Australia
Lachlan Campbell
Affiliation:
Research School of Astronomy & Astrophysics, The Australian National University, Cotter Road, Weston Creek, ACT 2611, Australia
Daniel Burkey
Affiliation:
Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, U.K.
Andy Taylor
Affiliation:
Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, U.K.
Will Saunders
Affiliation:
Anglo-Australian Observatory, P.O. Box 296, Epping, NSW 1710, Australia

Abstract

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The 6dF Galaxy Survey will provide 167 000 redshifts and about 15000 peculiar velocities for galaxies over most of the southern sky out to about cz = 30000 km s--1. The survey is currently almost half complete, with the final observations due in mid-2005. An initial data release was made public in December 2002; the first third of the dataset will be released at the end of 2003, with the remaining thirds being released at the end of 2004 and 2005. The status of the survey, the survey database and other relevant information can be obtained from the 6dFGS web site at http://www.mso.anu.edu.au/6dFGS.

In terms of constraining cosmological parameters, combining the 6dFGS redshift and peculiar velocity surveys will allow us to: (1) break the degeneracy between the redshift-space distortion parameter β = Ω0.6m/b and the galaxy-mass correlation parameter rg; (2) measure the four parameters Ag, Γ, β and rg with precisions of between 1% and 3%; (3) measure the variation of rg and b with scale to within a few percent over a wide range of scales.

Type
Session III: Local Structure
Information
Symposium - International Astronomical Union , Volume 216: Maps of the Cosmos , 2005 , pp. 180 - 189
Copyright
Copyright © Astronomical Society of the Pacific 2005 

References

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