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Neutrino halos in clusters of galaxies and their weak lensing signature

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Neutrino halos in clusters of galaxies and their weak lensing signature

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dc.contributor.author Villaescusa Navarro, Francisco Antonio
dc.contributor.author Miralda Escude, Jordi
dc.contributor.author Peña Garay, Carlos
dc.contributor.author Quilis Quilis, Vicent
dc.date.accessioned 2014-10-30T13:34:37Z
dc.date.available 2014-10-30T13:34:37Z
dc.date.issued 2011
dc.identifier.citation Villaescusa Navarro, Francisco Antonio Miralda Escude, Jordi Peña Garay, Carlos Quilis Quilis, Vicent 2011 Neutrino halos in clusters of galaxies and their weak lensing signature Journal Of Cosmology And Astroparticle Physics 06 6 027
dc.identifier.uri http://hdl.handle.net/10550/39509
dc.description.abstract We study whether non-linear gravitational effects of relic neutrinos on the development of clustering and large-scale structure may be observable by weak gravitational lensing. We compute the density profile of relic massive neutrinos in a spherical model of a cluster of galaxies, for several neutrino mass schemes and cluster masses. Relic neutrinos add a small perturbation to the mass profile, making it more extended in the outer parts. In principle, this non-linear neutrino perturbation is detectable in an all-sky weak lensing survey such as EUCLID by averaging the shear profile of a large fraction of the visible massive clusters in the universe, or from its signature in the general weak lensing power spectrum or its cross-spectrum with galaxies. However, correctly modeling the distribution of mass in baryons and cold dark matter and suppressing any systematic errors to the accuracy required for detecting this neutrino perturbation is severely challenging.
dc.language.iso eng
dc.relation.ispartof Journal Of Cosmology And Astroparticle Physics, 2011, vol. 06, num. 6, p. 027
dc.subject Cosmologia
dc.title Neutrino halos in clusters of galaxies and their weak lensing signature
dc.type journal article es_ES
dc.date.updated 2014-10-30T13:34:37Z
dc.identifier.doi 10.1088/1475-7516/2011/06/027
dc.identifier.idgrec 071721
dc.rights.accessRights open access es_ES

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