The motion of galaxy clusters in inhomogeneous cosmologies

Abstract

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.

7 pages, 2 figures

References in corpus (8)

• An inhomogeneous alternative to dark energy?
• On cosmic acceleration without dark energy
• Confronting Lemaitre-Tolman-Bondi models with Observational Cosmology
• Effect of inhomogeneities on the expansion rate of the Universe
• A Test of the Copernican Principle
• Mimicking Dark Energy with Lemaitre-Tolman-Bondi Models: Weak Central Singularities and Critical Points
• Cosmic Microwave Background, Accelerating Universe and Inhomogeneous Cosmology
• Inhomogeneous spacetimes as a dark energy model

Cited by in corpus (7)

• Searching for a Cosmological Preferred Axis: Union2 Data Analysis and Comparison with Other Probes
• Establishing homogeneity of the universe in the shadow of dark energy
• Observational constraints on inhomogeneous cosmological models without dark energy
• The Cosmic Microwave Background in an Inhomogeneous Universe - why void models of dark energy are only weakly constrained by the CMB
• CMB observations in LTB universes: Part II: the kSZ effect in an LTB universe
• The isotropic blackbody CMB as evidence for a homogeneous universe
• Constraints on the Hubble Parameter from galaxy clusters and the Validity of the Cosmic Distance Duality Relation