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A Tolman Surface Brightness Test for Universal Expansion, and the Evolution of Elliptical Galaxies in Distant Clusters
M. A. Pahre, S. G. Djorgovski, R. R. de Carvalho
We use the intercept of the elliptical galaxy radius--surface brightness (SB) relation at a fixed metric radius as the standard condition for the Tolman SB test of the universal ex…
The Near-Infrared Fundamental Plane of Elliptical Galaxies
M. A. Pahre, S. G. Djorgovski, R. R. de Carvalho
We present results from a near-infrared -band imaging survey of 59 elliptical galaxies in five nearby clusters. We measure photometric parameters for each galaxy using surface p…
A Near-Infrared Search for Line Emission from Protogalaxies Using the W. M. Keck Telescope
M. A. Pahre, S. G. Djorgovski
We present the first results from a near-infrared narrow-band search for primeval galaxies (PGs) using the Keck 10~m telescope. We have targeted our fields for three QSOs and one r…
The Discovery of Two Giant Arcs in the Rich Cluster A2219 with the Keck Telescope
Ian Smail, David W. Hogg, Roger Blandford +3
We report the discovery with the Keck telescope of two new multiply-imaged arcs in the luminous X-ray cluster A2219 (). The brighter arc in the field is red and we use spe…