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.

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