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APS » Journals » Phys. Rev. Lett. » Volume 88 » Issue 23
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Phys. Rev. Lett. 88, 231301 (2002) [4 pages]

Constraining Dark Energy with Sunyaev-Zel’dovich Cluster Surveys

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Jochen Weller1, Richard A. Battye2, and Rüdiger Kneissl3
1Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, United Kingdom
2Jodrell Bank Observatory, University of Manchester, Macclesfield, Cheshire SK11 9DL, United Kingdom
3Astrophysics Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom

Received 18 October 2001; published 24 May 2002

We discuss the prospects of constraining the properties of a dark energy component, with particular reference to a time varying equation of state, using future cluster surveys selected by their Sunyaev-Zel’dovich effect. We compute the number of clusters expected for a given set of cosmological parameters and propogate the errors expected from a variety of surveys. In the short term they will constrain dark energy in conjunction with future observations of type Ia supernovae, but may in time do so in their own right.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.88.231301
DOI:
10.1103/PhysRevLett.88.231301
PACS:
98.80.Es, 98.65.Cw, 98.80.Cq
 
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