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 Ivezić; G. 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

doi:10.1086/301191

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

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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 < M_B < -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 language	English (US)
Pages (from-to)	1-11
Number of pages	11
Journal	Astronomical Journal
Volume	119
Issue number	1
DOIs	https://doi.org/10.1086/301191
State	Published - Jan 2000

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Quasars: general
Surveys

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10.1086/301191

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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

@article{4f233af34010470d89be65fb711762ce,

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

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.",

keywords = "Quasars: general, Surveys",

author = "Xiaohui Fan and Strauss, {Michael A.} and Schneider, {Donald P.} and Gunn, {James E.} and Lupton, {Robert H.} and Anderson, {Scott F.} and Wolfgang Voges and Bruce Margon and James Annis and Bahcall, {Neta A.} and J. Brinkmann and Brunner, {Robert J.} and Carr, {Michael A.} and Istv{\'a}n Csabai and Mamoru Doi and Frieman, {Joshua A.} and Masataka Fukugita and Hennessy, {G. S.} and Hindsley, {Robert B.} and {\v Z}eljko Ivezi{\'c} and Knapp, {G. R.} and Lamb, {D. Q.} and Mckay, {Timothy A.} and Munn, {Jeffrey A.} and Newberg, {Heidi Jo} and Pauls, {A. George} and Pier, {Jeffrey R.} and Ron Rechenmacher and Richards, {Gordon T.} and Rockosi, {Constance M.} and Chris Stoughton and Szalay, {Alexander S.} and Thakar, {Aniruddha R.} and Tucker, {Douglas L.} and Patrick Waddell and York, {Donald G.}",

year = "2000",

month = jan,

doi = "10.1086/301191",

language = "English (US)",

volume = "119",

pages = "1--11",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "IOP Publishing Ltd.",

number = "1",

}

Fan, X, Strauss, MA, Schneider, DP, Gunn, JE, Lupton, RH, Anderson, SF, Voges, W, Margon, B, Annis, J, Bahcall, NA, Brinkmann, J, Brunner, RJ, Carr, MA, Csabai, I, Doi, M, Frieman, JA, Fukugita, M, Hennessy, GS, Hindsley, RB, Ivezić, Ž, Knapp, GR, Lamb, DQ, Mckay, TA, Munn, JA, Newberg, HJ, Pauls, AG, Pier, JR, Rechenmacher, R, Richards, GT, Rockosi, CM, Stoughton, C, Szalay, AS, Thakar, AR, Tucker, DL, Waddell, P & York, DG 2000, 'High-redshift quasars found in sloan digital sky survey commissioning data. II. The spring equatorial stripe', Astronomical Journal, vol. 119, no. 1, pp. 1-11. https://doi.org/10.1086/301191

TY - JOUR

T1 - High-redshift quasars found in sloan digital sky survey commissioning data. II. The spring equatorial stripe

AU - Fan, Xiaohui

AU - Strauss, Michael A.

AU - Schneider, Donald P.

AU - Gunn, James E.

AU - Lupton, Robert H.

AU - Anderson, Scott F.

AU - Voges, Wolfgang

AU - Margon, Bruce

AU - Annis, James

AU - Bahcall, Neta A.

AU - Brinkmann, J.

AU - Brunner, Robert J.

AU - Carr, Michael A.

AU - Csabai, István

AU - Doi, Mamoru

AU - Frieman, Joshua A.

AU - Fukugita, Masataka

AU - Hennessy, G. S.

AU - Hindsley, Robert B.

AU - Ivezić, Željko

AU - Knapp, G. R.

AU - Lamb, D. Q.

AU - Mckay, Timothy A.

AU - Munn, Jeffrey A.

AU - Newberg, Heidi Jo

AU - Pauls, A. George

AU - Pier, Jeffrey R.

AU - Rechenmacher, Ron

AU - Richards, Gordon T.

AU - Rockosi, Constance M.

AU - Stoughton, Chris

AU - Szalay, Alexander S.

AU - Thakar, Aniruddha R.

AU - Tucker, Douglas L.

AU - Waddell, Patrick

AU - York, Donald G.

PY - 2000/1

Y1 - 2000/1

N2 - 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.

AB - 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.

KW - Quasars: general

KW - Surveys

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UR - http://www.scopus.com/inward/citedby.url?scp=0006373078&partnerID=8YFLogxK

U2 - 10.1086/301191

DO - 10.1086/301191

M3 - Article

AN - SCOPUS:0006373078

SN - 0004-6256

VL - 119

SP - 1

EP - 11

JO - Astronomical Journal

JF - Astronomical Journal

IS - 1

ER -

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

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