Titlebook: Observational Tests of Cosmological Inflation; T. Shanks,A. J. Banday,A. W. Wolfendale Book 1991 Kluwer Academic Publishers 1991 Big Bang.

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Globular Cluster Ages and Cosmology,it is usual to assume the present age of the universe as given by its age at the epoch of galaxy formation, plus the age of globular clusters, i.e.: . where .. is the redshift of the epoch of galaxy formation. Preasumably .(..)... [say, .(Z.) ≃ 1– 2 Gyr], so .. ≃ ... Unlike for the case of .. (for w

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The Luminosity-Line-Width Relations and the Value of Ho,ground contamination in the Virgo Cluster is presented. It is shown that this contamination is responsible for much of the controversy regarding the distance to the Virgo Cluster. The absolute calibration is examined and it appears that the technique is now limited by the uncertainty in the . distan

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Observational Status of Ho,d the cosmic recession velocity of the cluster (v = 1144 ±18 km s.) within a nearly Machian frame can be determined using . distances to more distant clusters. The resulting value of the Hubble constant — freed from all velocity perturbations — is H. = 52 km s.Mpc.. The formal error of this determin

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New , Results for Coma Ellipticals,outside the cluster core. These data have been used to estimate the environmental dependence of the . relation. The zero-point of the . relation is found to vary by only -8% α10% from Coma’s core to a projected distance of ~4.. Mpc. The projected galaxian density from the core to our outermost ellip

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Novae and the Distance Scale, estimate of .. are discussed. In the future it should prove possible to push distance determinations using novae out beyond the Local Supercluster, and hence determine a value of .. less affected by local velocity anomalies.