CMB Radiation in the Direction of a Moving Cluster of Galaxies with Hot Gas: Relativistic Corrections

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dc.creatorSazonov, S. Y.
dc.creatorSunyaev, R. A.
dc.date1998-04-13
dc.date1998-04-14
dc.date.accessioned2026-07-07T02:26:35Z
dc.date.available2026-07-07T02:26:35Z
dc.descriptionIt has been recently realized (Rephaeli 1995) that the relativistic corrections to the spectral distortions of the cosmic microwave background (CMB) measured in the direction of clusters of galaxies containing hot gas are significant and should be detectable with the forthcoming experiments. In the present paper we calculate the correction terms that are proportional to $V_{r}/c\times kT_e/m_ec^2$ and $(V/c)^2$ to the standard formulae describing the spectral distortions caused by the bulk motion of the free electrons (kinematic effect) and due to the presence of the hot gas (thermal effect) for the case of a cluster having a peculiar velocity $V$ ($V_{r}$ is its radial component). The results of our analytical calculations are confirmed by Monte-Carlo simulations (Sazonov & Sunyaev 1998).
dc.description14 pages, 2 PS-figures, AASTeX4.0
dc.identifierhttps://arxiv.org/abs/astro-ph/9804125
dc.identifierhttp://arxiv.org/abs/astro-ph/9804125
dc.identifierAstrophys.J. 508 (1998) 1-5
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/12330
dc.subjectAstrophysics
dc.titleCMB Radiation in the Direction of a Moving Cluster of Galaxies with Hot Gas: Relativistic Corrections
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