The XMM-Newton $Ω$ Project

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dc.creatorBartlett, J. G.
dc.creatorAghanim, N.
dc.creatorArnaud, M.
dc.creatorBernard, J. -Ph.
dc.creatorBlanchard, A.
dc.creatorBoer, M.
dc.creatorBurke, D. J.
dc.creatorCollins, C. A.
dc.creatorGiard, M.
dc.creatorLumb, D. H.
dc.creatorMajerowicz, S.
dc.creatorMarty, Ph.
dc.creatorNeumann, D.
dc.creatorNevalainen, J.
dc.creatorNichol, R. C.
dc.creatorPichon, C.
dc.creatorRomer, A. K.
dc.creatorSadat, R.
dc.creatorAdami, C.
dc.date2001-06-06
dc.date.accessioned2026-07-07T01:58:49Z
dc.date.available2026-07-07T01:58:49Z
dc.descriptionThe abundance of high-redshift galaxy clusters depends sensitively on the matter density $\OmM$ and, to a lesser extent, on the cosmological constant $Λ$. Measurements of this abundance therefore constrain these fundamental cosmological parameters, and in a manner independent and complementary to other methods, such as observations of the cosmic microwave background and distance measurements. Cluster abundance is best measured by the X-ray temperature function, as opposed to luminosity, because temperature and mass are tightly correlated, as demonstrated by numerical simulations. Taking advantage of the sensitivity of XMM-Newton, our Guaranteed Time program aims at measuring the temperature of the highest redshift (z>0.4) SHARC clusters, with the ultimate goal of constraining both $\OmM$ and $Λ$.
dc.descriptionTo appear in the Proceedings of the XXI Moriond Conference: Galaxy Clusters and the High Redshift Universe Observed in X-rays, edited by D. Neumann, F. Durret, & J. Tran Thanh Van
dc.identifierhttps://arxiv.org/abs/astro-ph/0106098
dc.identifierhttp://arxiv.org/abs/astro-ph/0106098
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/2867
dc.subjectAstrophysics
dc.titleThe XMM-Newton $Ω$ Project
dc.typetext

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