X-ray temperature distribution function of clusters in presence of large non-radial motions

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dc.creatorDel Popolo, A.
dc.creatorGambera, M.
dc.date2004-01-29
dc.date.accessioned2026-07-07T02:12:03Z
dc.date.available2026-07-07T02:12:03Z
dc.descriptionWe consider the non-radial motions, originating in the outskirts of clusters of galaxies and we show how it may reduce the discrepancy between Cold Dark Matter (CDM) predicted X-ray temperature distribution function of clusters of galaxies and that really observed, so resolving the problem of the X-ray clusters abundance over-production predicted by the CDM model. We construct the X-ray temperature distribution function using Press-Schechter's (1974) theory and Evrard's (1990) prescriptions for the mass-temperature relation, taking also account of the non-radial motions originating from the gravitational interaction of the quadrupole moment of the protocluster. Then, we compare our X-ray temperature distribution function with the tidal field of the matter of the neighboring protostructures. We find that the model produces a reasonable cluster temperature distribution.
dc.description14 pages, 2 encapsulated figures. In: Proceedings of " The VII Conference on Theoretical Physics: General Relativity and Gravitation " BISTRITZA - MAY 26-30, 1997 - Romania
dc.identifierhttps://arxiv.org/abs/astro-ph/0401611
dc.identifierhttp://arxiv.org/abs/astro-ph/0401611
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/7321
dc.subjectAstrophysics
dc.titleX-ray temperature distribution function of clusters in presence of large non-radial motions
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