Showing 1996 · astro-phShow all

14 papers · 2 filters

astro-ph1996★ 8 cited

Cosmic Microwave Background Observations: Implications for Hubble's Constant and the Spectral Parameters $\n$ and in Cold Dark Matter Critical Density Universes

Charles H. Lineweaver, Domingos Barbosa

Recent cosmic microwave background (CMB) measurements over a large range of angular scales have become sensitive enough to provide interesting constraints on cosmological parameter…

astro-ph1996★ 18 cited

Are the Perseus-Pisces chain and the Pavo-Indus wall connected?

Helene Di Nella, W. Couch, G. Paturel +1

A significant empty region was found between the southern Pavo- Indus (PI) wall and the northern Perseus-Pisces (PP) chain. This survey tests the reality of this void which may sim…

astro-ph1996★ 155 cited

A Catalog of Morphological Types in 10 Distant Rich Clusters of Galaxies

Ian Smail, Alan Dressler, Warrick J. Couch +4

We present catalogs of objects detected in deep images of 11 fields in 10 distant clusters obtained using WFPC-2 on board the Hubble Space Telescope. The clusters span the redshift…

astro-ph1996★ 143 cited

A Comparison of Direct and Indirect Mass Estimates for Distant Clusters of Galaxies

Ian Smail, Richard S. Ellis, Alan Dressler +4

We present weak lensing results for 12 distant clusters determined from images obtained with the refurbished HST. We detect the signature of gravitational lensing in 11 of the 12 c…

astro-ph1996★ 57 cited

The Faint End of the Galaxy Luminosity Function In Moderate Redshift Clusters

Gillian Wilson, Ian Smail, Richard S. Ellis +1

We present deep two-colour photometry of two rich clusters at z=0.18, A665 and A1689. We use these data to construct number counts as a function of magnitude in the two fields. By…

astro-ph1996★ 1.6k cited

Measurements of the Cosmological Parameters Omega and Lambda from the First 7 Supernovae at z >= 0.35

S. Perlmutter, S. Gabi, G. Goldhaber +21

We have developed a technique to systematically discover and study high-redshift supernovae that can be used to measure the cosmological parameters. We report here results based on…