The Omega_M-Omega_Lambda Constraint from CNOC Clusters

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dc.creatorCarlberg, R. G.
dc.creatorYee, H. K. C.
dc.creatorEllingson, E.
dc.creatorMorris, S. L.
dc.creatorLin, H.
dc.creatorSawicki, M.
dc.creatorPatton, D.
dc.creatorWirth, G.
dc.creatorAbraham, R.
dc.creatorGravel, P.
dc.creatorPritchet, C. J.
dc.creatorSmecker-Hane, T.
dc.creatorSchade, D.
dc.creatorHartwick, F. D. A.
dc.creatorHesser, J. E.
dc.creatorHutchings, J. B.
dc.creatorOke, J. B.
dc.date1998-04-28
dc.date.accessioned2026-07-07T02:26:43Z
dc.date.available2026-07-07T02:26:43Z
dc.descriptionThe CNOC redshift survey of galaxy clusters measures Omega_M from Omega_e(z)= M/L x j/ρ_c which can be applied on a cluster-by-cluster basis. The mass-to-light ratios, M/L, are estimated from rich galaxy clusters, corrected to the field population over the 0.18 to 0.55 redshift range. Since the luminosity density depends on cosmological volumes, the resulting Omega_e(z) has a strong dependence on cosmology which allows us to place the results in the Omega_M-Omega_Lambda plane. The resulting Omega_M declines if Omega_Lambda>0 and we find that Omega_Lambda<1.5.
dc.description4 pages LaTeX. To appear in "Fundamental Parameters in Cosmology," the proceedings of the XXXIIIrd Rencontres de Moriond
dc.identifierhttps://arxiv.org/abs/astro-ph/9804312
dc.identifierhttp://arxiv.org/abs/astro-ph/9804312
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/12386
dc.subjectAstrophysics
dc.titleThe Omega_M-Omega_Lambda Constraint from CNOC Clusters
dc.typetext

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