High-redshift quasars found in sloan digital sky survey commissioning data. II. The spring equatorial stripe

Xiaohui Fan, Michael A. Strauss, Donald P. Schneider, James E. Gunn, Robert H. Lupton, Scott F. Anderson, Wolfgang Voges, Bruce Margon, James Annis, Neta A. Bahcall, J. Brinkmann, Robert J. Brunner, Michael A. Carr, István Csabai, Mamoru Doi, Joshua A. Frieman, Masataka Fukugita, G. S. Hennessy, Robert B. Hindsley, Željko IvezićG. R. Knapp, D. Q. Lamb, Timothy A. Mckay, Jeffrey A. Munn, Heidi Jo Newberg, A. George Pauls, Jeffrey R. Pier, Ron Rechenmacher, Gordon T. Richards, Constance M. Rockosi, Chris Stoughton, Alexander S. Szalay, Aniruddha R. Thakar, Douglas L. Tucker, Patrick Waddell, Donald G. York

Research output: Contribution to journalArticle

32 Scopus citations

Abstract

This is the second paper in a series aimed at finding high-redshift quasars from five-color (u′g′r′i′z′) imaging data taken along the Celestial Equator by the Sloan Digital Sky Survey (SDSS) during its commissioning phase. In this paper, we present 22 high-redshift quasars (z > 3.6) discovered from ∼250 deg2 of data in the spring Equatorial Stripe, plus photometry for two previously known high-redshift quasars in the same region of the sky. Our success rate in identifying high-redshift quasars is 68%. Five of the newly discovered quasars have redshifts higher than 4.6 (z = 4.62, 4.69, 4.70, 4.92, and 5.03). All the quasars have i* < 20.2 with absolute magnitude -28.8 < MB < -26.1 (h = 0.5, q0 = 0.5). Several of the quasars show unusual emission and absorption features in their spectra, including an object at z = 4.62 without detectable emission lines, and a broad absorption line (BAL) quasar at z = 4.92.

Original languageEnglish (US)
Pages (from-to)1-11
Number of pages11
JournalAstronomical Journal
Volume119
Issue number1
DOIs
StatePublished - Jan 2000

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Fingerprint Dive into the research topics of 'High-redshift quasars found in sloan digital sky survey commissioning data. II. The spring equatorial stripe'. Together they form a unique fingerprint.

  • Cite this

    Fan, X., Strauss, M. A., Schneider, D. P., Gunn, J. E., Lupton, R. H., Anderson, S. F., Voges, W., Margon, B., Annis, J., Bahcall, N. A., Brinkmann, J., Brunner, R. J., Carr, M. A., Csabai, I., Doi, M., Frieman, J. A., Fukugita, M., Hennessy, G. S., Hindsley, R. B., ... York, D. G. (2000). High-redshift quasars found in sloan digital sky survey commissioning data. II. The spring equatorial stripe. Astronomical Journal, 119(1), 1-11. https://doi.org/10.1086/301191