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astro-ph2001
The Extragalactic Ionizing Background at Low Redshift
J. Scott, J. Bechtold, M. Morita +2
We present a measurement of the mean intensity of the hydrogen-ionizing background radiation field at low redshift using 906 Ly-alpha absorption lines in 151 quasar spectra from th…
astro-ph1998
Star Formation in High Redshift Galaxies
Jill Bechtold, Richard Elston, Howard K. C. Yee +2
Observations of the high redshift Universe, interpreted in the context of a new generation of computer simulated model Universes, are providing new insights into the processes by w…
astro-ph1997
Distribution of the Lyman-alpha Forest at z = 0.0-1.7
Adam Dobrzycki, Jill Bechtold
We present the analysis of a sample of the Ly- forest spectra of 152 quasars taken with the HST FOS. The Ly- lines show little evolution at . We see a difference bet…