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Constraints on neutrino masses from Planck and Galaxy clustering data

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Constraints on neutrino masses from Planck and Galaxy clustering data

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dc.contributor.author	Giusarma, Elena
dc.contributor.author	de Putter, Roland
dc.contributor.author	Ho, Shirley
dc.contributor.author	Mena Requejo, Olga
dc.date.accessioned	2013-11-26T11:56:14Z
dc.date.available	2013-11-26T11:56:14Z
dc.date.issued	2013
dc.identifier.citation	Giusarma, Elena de Putter, R. Ho, S. Mena Requejo, Olga 2013 Constraints on neutrino masses from Planck and Galaxy clustering data Physical Review D 88 6 063515
dc.identifier.uri	http://hdl.handle.net/10550/31431
dc.description.abstract	We present here bounds on neutrino masses from the combination of recent Planck cosmic microwave background (CMB) measurements and galaxy clustering information from the Baryon Oscillation Spectroscopic Survey, part of the Sloan Digital Sky Survey-III. We use the full shape of either the photometric angular clustering (Data Release 8) or the 3D spectroscopic clustering (Data Release 9) power spectrum in different cosmological scenarios. In the Lambda CDM scenario, spectroscopic galaxy clustering measurements improve significantly the existing neutrino mass bounds from Planck data. We find Sigma m(v) < 0.39 eV at 95% confidence level for the combination of the 3D power spectrum with Planck CMB data (wi lensing included) and Wilkinson Microwave Anisoptropy Probe 9-year polarization measurements. Therefore, robust neutrino mass constraints can be obtained without the addition of the prior on the Hubble constant from Hubble Space Telescope. In extended cosmological scenarios with a dark energy fluid or with nonflat geometries, galaxy clustering measurements are essential to pin down the neutrino mass bounds, providing in the majority of cases better results than those obtained from the associated measurement of the baryon acoustic oscillation scale only. In the presence of a freely varying (constant) dark energy equation of state, we find Sigma m(v) < 0.49 eV at 95% confidence level for the combination of the 3D power spectrum with Planck CMB data (with lensing included) and Wilkinson Microwave Anisoptropy Probe 9-year polarization measurements. This same data combination in nonflat geometries provides the neutrino mass bound Sigma m(v) < 0.35 eV at 95% confidence level.
dc.relation.ispartof	Physical Review D, 2013, vol. 88, num. 6, p. 063515
dc.subject	Cosmologia
dc.subject	Partícules (Física nuclear)
dc.title	Constraints on neutrino masses from Planck and Galaxy clustering data
dc.type	journal article	es_ES
dc.date.updated	2013-11-26T11:56:14Z
dc.identifier.doi	10.1103/PhysRevD.88.063515
dc.identifier.idgrec	092073
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1103/PhysRevD.88.063515