WMAP 5-year constraints on time variation of $α$ and $m_e$ in a detailed recombination scenario

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dc.creatorScóccola, Claudia G.
dc.creatorLandau, Susana. J.
dc.creatorVucetich, Hector
dc.date2008-09-29
dc.date2008-10-29
dc.date.accessioned2026-07-07T10:14:03Z
dc.date.available2026-07-07T10:14:03Z
dc.descriptionWe study the role of fundamental constants in an updated recombination scenario. We focus on the time variation of the fine structure constant, and the electron mass in the early Universe, and put bounds on these quantities by using data from CMB including WMAP 5-yr release and the 2dFGRS power spectrum. We analyze how the constraints are modified when changing the recombination scenario.
dc.description11 pages, accepted for publication in Physics Letters B
dc.identifierhttps://arxiv.org/abs/0809.5028
dc.identifierhttp://arxiv.org/abs/0809.5028
dc.identifierPhysics Letters B 669 (2008) 212-216
dc.identifierdoi:10.1016/j.physletb.2008.09.051
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/172746
dc.subjectAstrophysics
dc.titleWMAP 5-year constraints on time variation of $α$ and $m_e$ in a detailed recombination scenario
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