3 papers
astro-ph1998
The Omega_M-Omega_Lambda Constraint from CNOC Clusters
R. G. Carlberg, H. K. C. Yee, E. Ellingson +14
The 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 est…
astro-ph1997
Omega_M and the CNOC Surveys
R. G. Carlberg, H. K. C. Yee, H. Lin +15
The CNOC1 cluster survey measures Omega_M via Oort's method, Omega_M= M/L x j/rho_c, where M/L is the field mass-to-light ratio, j is the field luminosity density and rho_c is the…
astro-ph1997
Omega baryon via Oort's Method
R. G. Carlberg, S. L. Morris, H. K. C. Yee +11
The baryon density of the universe is equal to the product of the baryon-to-light ratio, M_b/L, and the luminosity density, j. We estimate M_b/L as the sum of the masses of the X-r…