Antoinette Songaila Cowie
Keck ESI & HIRES Spectra of the Intergalactic Medium
This site makes available spectra of z > 2 quasars taken over a number of years at the Keck telescopes with the high resolution HIRES spectrograph and, when it became available, the lower resolution ESI spectrograph.

These spectra were taken for a number of programs to investigate properties of the intergalactic medium at high redshift. The ESI spectra have uniform coverage from 4,500 to 10,000 Angstroms; the wavelength coverage of the HIRES spectra is variable, usually covering the Lyman alpha forest, or the CIV forest, but not both. Details are given on the appropriate page.

Please report any problems with the site by email to acowie@ifa.hawaii.edu.

This material is based upon work supported by the National Science Foundation under Grants No. AST00-98480 and AST06-07871.