The motion of galaxy clusters in inhomogeneous cosmologies

Details The motion of galaxy clusters in inhomogeneous cosmologies The motion of galaxy clusters in inhomogeneous cosmologies

2009-08-27

arxiv.org/abs/0908.4102v1

Class.Quant.Grav.27:065002,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages, 2 figures

Scientific paper

10.1088/0264-9381/27/6/065002

Lemaitre-Tolman-Bondi inhomogeneous spacetimes can be used as a cosmological model to account for the type Ia supernova data. However, such models also give rise to large velocities of galaxy clusters with respect to the cosmic microwave background. Those velocities can be measured using the kinematic Sunyaev-Zeldovich effect. This paper presents a calculation of galaxy cluster velocities as a function of redshift for such a model.

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