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Dark Energy and the mass of galaxy clusters

Cosimo Bambi
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Abstract

Up to now, Dark Energy evidences are based on the dynamics of the universe on very large scales, above 1 Gpc. Assuming it continues to behave like a cosmological constant $Λ$ on much smaller scales, I discuss its effects on the motion of non-relativistic test-particles in a weak gravitational field and I propose a way to detect evidences of $Λ\neq 0$ at the scale of about 1 Mpc: the main ingredient is the measurement of galaxy cluster masses.

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Cosimo Bambi. 2007-03-31. Dark Energy and the mass of galaxy clusters. https://doi.org/10.1103/physrevd.75.083003

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