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Autofib Redshift Survey - I. Evolution of the Galaxy Luminosity Function
Richard S. Ellis, Matthew Colless, Tom Broadhurst +2
We present a detailed determination of the restframe B-band galaxy luminosity function (LF) as a function of redshift and star formation activity from z=0 to z=0.75. The dataset us…
Gravitational `Convergence' and Cluster Masses
Tom Broadhurst
Two colour photometry of the cluster A1689 reveals a `relative magnification-bias' between lensed blue and red background galaxies, arising from a dependence of the faint galaxy co…
A Gravitational Lens Solution for IRAS F10214+4724
Tom Broadhurst, Joseph Lehar
We show that the high redshift IRAS source F10214 is highly magnified by the gravitational field of an intervening elliptical galaxy, accounting for its many anomalous properties.…
Mass Distributions of Clusters Using Gravitational Magnification
Tom Broadhurst
Lensing in the context of rich clusters is normally quantified from small image distortions, yielding a relative mass distribution in the limit of weak lensing. Here we show the ma…