5 papers · 1 filter
Can the reionization epoch be detected as a global signature in the cosmic background?
P. A. Shaver, R. A. Windhorst, P. Madau +1
The reionization of the Universe is expected to leave a signal in the form of a sharp step in the spectrum of the sky. If reionization occurs at 5 < z < 20, a feature should appear…
Deep HST/PC Images of a Young Radio Galaxy at z=2.390
Rogier A. Windhorst, William C. Keel, Sebastian M. Pascarelle
We present deep 63-orbit HST/PC images at ~0.06" FWHM resolution in the filters B_450, V_606 & I_814 - as well as in redshifted Lya - of the radio source LBDS 53W002, a compact nar…
Evolution of the morphological luminosity distributions within rich clusters (0.0 < z < 0.55)
S. P. Driver, W. J. Couch, S. C. Odewahn +1
We demonstrate the ability to recover morphological luminosity distributions within medium redshift clusters (z ~ 0.55) based on Hubble Space Telescope WFPC2 observations. We postu…
Caught in the act: The identification of the galaxies responsible for the faint blue excess
Simon P. Driver, Rogier A. Windhorst, Richard E. Griffiths
We summarise recent Hubble Space Telescope results on the morphology of faint field galaxies. Our two principle results are: (1) the galaxies responsible for the faint blue excess…
Morphological number-counts from the ultradeep HST images
Simon P. Driver, Rogier A. Windhorst, Richard E. Griffiths
We discuss the observations leading to the Faint Blue Galaxy problem and the uncertainties upon which faint galaxy models are based. Using deep Hubble Space Telescope (HST) imaging…