High-redshift quasars found in sloan digital sky survey commissioning data. V. Hobby-Eberly telescope observations

Donald P. Schneider, Xiaohui Fan, Michael A. Strauss, James E. Gunn, Gordon T. Richards, Gary J. Hill, Phillip J. MacQueen, Lawrence W. Ramsey, Mark T. Adams, John A. Booth, Grant M. Hill, G. R. Knapp, Robert H. Lupton, David H. Saxe, Matthew Shetrone, Joseph R. Tufts, Daniel E. Vanden Berk, Marsha J. Wolf, Donald G. York, John E. AndersonScott F. Anderson, Neta A. Bahcall, J. Brinkmann, Robert Brunner, Istvan Csabai, Masataka Fukugita, G. S. Hennessy, Željko Ivezić, Donald Q. Lamb, Jeffrey A. Munn, Aniruddha R. Thakar

Research output: Contribution to journalArticlepeer-review

43 Scopus citations


We report the discovery of 27 quasars with redshifts between 3.58 and 4.49. The objects were identified as high-redshift candidates based on their colors in Sloan Digital Sky Survey commissioning data. The redshifts were confirmed with low-resolution spectra obtained at the Hobby-Eberly Telescope. The quasars' i* magnitudes range from 18.55 to 20.97. Nearly 60% of the quasar candidates observed are confirmed spectroscopically as quasars. Two of the objects are broad absorption line quasars, and several other quasars appear to have narrow associated absorption features.

Original languageEnglish (US)
Pages (from-to)1232-1240
Number of pages9
JournalAstronomical Journal
Issue number3
StatePublished - Mar 2001
Externally publishedYes


  • Early universe
  • Quasars: general

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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