X-ray Clusters and the Search for Cosmic Flows

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dc.creatorLynam, P. D.
dc.creatorCollins, C. A.
dc.creatorJames, P. A.
dc.creatorBoehringer, H.
dc.creatorNeumann, D. M.
dc.date1999-08-31
dc.date.accessioned2026-07-07T02:32:57Z
dc.date.available2026-07-07T02:32:57Z
dc.descriptionWe are engaged in an investigation of the relationship between the properties of BCG candidates and X-ray characteristics of their host clusters for a flux-limited sample of ~250 ACO clusters from the ROSAT all-sky survey. We aim to search for the convergence scale of bulk streaming flows within the ~300 Mpc defined by this sample. X-ray selection provides significant advantages over previous optically selected samples. No R-band magnitude-structure correlation is present in this sample. Furthermore, no correlation between R-band magnitude of the BCG candidate and X-ray luminosity of the host cluster is evident. The resultant scatter of 0.34 mag. is larger than in (corrected) optically selected samples. Hence, attempts to recover Local Group peculiar velocity vectors with respect to inertial frames defined by such samples via standard candle methods may have limited sensitivity.
dc.description4 pages, 3 figures, to appear in proceedings of Cosmic Flows workshop, Victoria, Canada, July 1999, ed. S. Courteau, M. Strauss & J. Willick. ASP Series
dc.identifierhttps://arxiv.org/abs/astro-ph/9908348
dc.identifierhttp://arxiv.org/abs/astro-ph/9908348
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14659
dc.subjectAstrophysics
dc.titleX-ray Clusters and the Search for Cosmic Flows
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