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Dark Energy and the mass of galaxy clusters

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arxiv astro-ph/0703645 v2 pith:WHTVU6BH submitted 2007-03-26 astro-ph gr-qchep-ph

classification astro-phgr-qchep-ph
keywords darkenergyevidencesgalaxylambdascalesaboveassuming
verification ladder T0 review T1 audit T2 compute T3 formal
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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 $\Lambda$ 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 $\Lambda \neq 0$ at the scale of about 1 Mpc: the main ingredient is the measurement of galaxy cluster masses.

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