W.M. Keck Observatory

The Sloan Digital Sky Survey: Technical Summary

The Sloan Digital Sky Survey (SDSS) will provide the data to support detailed investigations of the distribution of luminous and nonluminous matter in the universe: a photometri...

Stochastic Problems in Physics and Astronomy

Toward a Precise Measurement of Matter Clustering: Lyα Forest Data at Redshifts 2–4

We measure the filling factor, correlation function, and power spectrum of transmitted flux in a large sample of Lyα forest spectra, comprised of 30 Keck HIRES spectra and 23 Ke...

High-Redshift Quasars Found in Sloan Digital Sky Survey Commissioning Data

We present photometric and spectroscopic observations of 15 high-redshift quasars (z > 3.6) discovered from ~140 deg^2 of five-color (u'g'r'i'z') imaging data taken by the Sloan...