Signature of the interaction between dark energy and dark matter in galaxy clusters

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dc.creatorAbdalla, E.
dc.creatorAbramo, L. R.
dc.creatorSodre, L.
dc.creatorWang, B.
dc.date2007-10-05
dc.date2009-02-27
dc.date.accessioned2026-07-07T12:46:52Z
dc.date.available2026-07-07T12:46:52Z
dc.descriptionWe investigate the influence of an interaction between dark energy and dark matter upon the dynamics of galaxy clusters. We obtain the general Layser-Irvine equation in the presence of interactions, and find how, in that case, the virial theorem stands corrected. Using optical, X-ray and weak lensing data from 33 relaxed galaxy clusters, we put constraints on the strength of the coupling in the dark sector. We find that this coupling is small but positive, indicating that dark energy can be decaying into dark matter.
dc.descriptionMinor changes. Replaced to match version published in Phys. Lett. B673: 107 (2009) -- 4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0710.1198
dc.identifierhttp://arxiv.org/abs/0710.1198
dc.identifierPhysics Letters B 673: 107-110 (2009)
dc.identifierdoi:10.1016/j.physletb.2009.02.008
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/221529
dc.subjectAstrophysics
dc.titleSignature of the interaction between dark energy and dark matter in galaxy clusters
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