90 citations · 90 across the 3 of their papers we have counts for
10 papers · 1 filter
Supernova search at intermediate z. I. Spectroscopic analysis
G. Altavilla, P. Ruiz-Lapuente, A. Balastegui +7
We study 8 supernovae discovered as part of the International Time Programme (ITP) project ``Omega and Lambda from Supernovae and the Physics of Supernova Explosions'' at the Europ…
A Keck/Deimos Survey of Red Giant Branch Stars in the Outskirts of M31
Annette Ferguson, Scott Chapman, Rodrigo Ibata +3
We are using the DEIMOS multi-object spectrograph on the Keck II 10m telescope to conduct a spectroscopic survey of red giant branch stars in the outskirts of M31. To date, velocit…
ImpZ: a new photometric redshift code for galaxies and quasars
T. S. R Babbedge, M. Rowan-Robinson, E. Gonzalez-Solares +7
We present a combined galaxy-quasar approach to template-fitting photometric redshift techniques and show the method to be a powerful one. The code (ImpZ) is presented, developed a…
Statistical Properties of DLAs and sub-DLAs
Celine Peroux, Mike J. Irwin, Richard G. McMahon +1
Quasar absorbers provide a powerful observational tool with which to probe both galaxies and the intergalactic medium up to high redshift. We present a study of the evolution of th…
Infrared Imaging Data Reduction Software and Techniques
Chris N. Sabbey, Richard G. McMahon, James R. Lewis +1
We describe the InfraRed Data Reduction (IRDR) software package, a small ANSI C library of fast image processing routines for automated pipeline reduction of infrared (dithered) ob…
Metal Abundances in the Lyman Alpha Forest
Sara L. Ellison, Geraint F. Lewis, Max Pettini +3
We present high S/N echelle spectra of the recently discovered ultraluminous QSO APM 08279+5255 and use these data to re-examine the abundance of Carbon in Ly alpha forest clouds.…