CMB Anisotropies in the Weak Coupling Limit

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dc.creatorHu, Wayne
dc.creatorWhite, Martin
dc.date1995-07-14
dc.date.accessioned2026-07-07T12:01:02Z
dc.date.available2026-07-07T12:01:02Z
dc.descriptionWe present a new, more powerful and accurate, analytic treatment of cosmic microwave background (CMB) anisotropies in the weakly coupled regime. Three applications are presented: gravitational redshifts in a time dependent potential, the Doppler effect in reionized scenarios, and the Vishniac effect. The Vishniac effect can dominate primary anisotropies at small angles even in late and minimally reionized models in flat dark-matter dominated universes with Harrison-Zel'dovich initial conditions. The techniques developed here refine previous calculations yielding a larger coherence angle for the Vishniac effect and moreover can be applied to non-trivial ionization histories. These analytic expressions may be used to modify results for the standard cold dark matter model to its cosmological constant and reionized extensions without detailed and time consuming recalculation.
dc.description8pg, uuencoded postscript, submitted to A&A
dc.identifierhttps://arxiv.org/abs/astro-ph/9507060
dc.identifierhttp://arxiv.org/abs/astro-ph/9507060
dc.identifierAstron.Astrophys.315:33,1996
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206977
dc.subjectAstrophysics
dc.titleCMB Anisotropies in the Weak Coupling Limit
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