title: Constraining dark energy with Sunyaev-Zel'dovich cluster surveys.
abstract: 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.
authors.affiliation: Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, United Kingdom.
authors.forename: Jochen
authors.initials: J
authors.lastname: Weller
authors.forename: Richard A
authors.initials: RA
authors.lastname: Battye
authors.forename: Rüdiger
authors.initials: R
authors.lastname: Kneissl