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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…
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…
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…
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…
The Homogeneity of Spheroidal Populations in Distant Clusters
Richard S. Ellis, Ian Smail, Alan Dressler +4
The small scatter observed for the U-V colors of spheroidal galaxies in nearby clusters of galaxies provides a powerful constraint on the history of star formation in dense environ…
Starcounts in the Hubble Deep Field: Constraining Galactic Structure Models
R. A. Mendez, D. Minniti, G. de Marchi +2
Stellar sources are identified in the Hubble Deep Field, and accurate colours and magnitudes are presented. The predictions of a Galactic starcounts model are compared with the fai…