The cosmic horseshoe: Discovery of an Einstein ring around a giant luminous red galaxy

被引：87

作者：

Belokurov, V. ^{[1
]}

Evans, N. W. ^{[1
]}

Moiseev, A. ^{[2
]}

King, L. J. ^{[1
]}

Hewett, P. C. ^{[1
]}

Pettini, M. ^{[1
]}

Wyrzykowski, L. ^{[1
,3
]}

McMahon, R. G. ^{[1
]}

Smith, M. C. ^{[1
]}

Gilmore, G. ^{[1
]}

Sanchez, S. F. ^{[4
]}

Udalski, A. ^{[3
]}

Koposov, S. ^{[5
]}

Zucker, D. B. ^{[1
]}

Walcher, C. J. ^{[6
]}

机构：

[1] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[2] Special Astrophys Observ, Karachaevo Cherkessiya, Russia

[3] Univ Warsaw Observ, PL-00479 Warsaw, Poland

[4] CSIC, MPIA, CAHA Calar Alto, E-4004 Almeria, Spain

[5] MPIA, D-69117 Heidelberg, Germany

[6] Univ Aix Marseille 1, CNRS, F-13376 Marseille 12, France

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2007年 / 671卷 / 01期

基金：

英国科学技术设施理事会;

关键词：

galaxies : evolution; galaxies : structure; gravitational lensing;

D O I：

10.1086/524948

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the discovery of an almost complete (similar to 300 degrees) Einstein ring of diameter 10 '' in Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5). Spectroscopic data from the 6 m telescope of the Special Astrophysical Observatory reveal that the deflecting galaxy has a line-of-sight velocity dispersion in excess of 400 km s(-1) and a redshift of 0.444, while the source is a star- forming galaxy with a redshift of 2.379. From its color, luminosity, and velocity dispersion, we argue that this is the most massive galaxy lens hitherto discovered.

引用

页码：L9 / L12

页数：4

共 26 条

[1] The SCORPIO universal focal reducer of the 6-m telescope [J].

Afanasiev, VL ;

Moiseev, AV .

ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS, 2005, 31 (03) :194-204

[2] The 8 o'clock arc: A serendipitous discovery of a strongly lensed lyman break galaxy in the SDSS DR4 imaging data [J].

Allam, Sahar S. ;

Tucker, Douglas L. ;

Lin, Huan ;

Diehl, H. Thomas ;

Annis, James ;

Buckley-Geer, Elizabeth J. ;

Frieman, Joshua A. .

ASTROPHYSICAL JOURNAL, 2007, 662 (02) :L51-L54

[3]

[Anonymous], MNRAS

[4] A search for the most massive galaxies: Double trouble? [J].

Bernardi, M ;

Sheth, RK ;

Nichol, RC ;

Miller, CJ ;

Schlegel, D ;

Frieman, J ;

Schneider, DP ;

Subbarao, M ;

York, DG ;

Brinkmann, J .

ASTRONOMICAL JOURNAL, 2006, 131 (04) :2018-2034

[5] Early-type galaxies in the Sloan Digital Sky Survey. II. Correlations between observables [J].

Bernardi, M ;

Sheth, RK ;

Annis, J ;

Burles, S ;

Eisenstein, DJ ;

Finkbeiner, DP ;

Hogg, D ;

Lupton, RH ;

Schlegel, DJ ;

SubbaRao, M ;

Bahcall, NA ;

Blakeslee, JP ;

Brinkmann, J ;

Castander, FJ ;

Connolly, AJ ;

Csabai, I ;

Doi, M ;

Fukugita, M ;

Frieman, J ;

Heckman, T ;

Hennessy, GS ;

Ivezic, Z ;

Knapp, GR ;

Lamb, DQ ;

McKay, T ;

Munn, JA ;

Nichol, R ;

Okamura, S ;

Schneider, DP ;

Thakar, AR ;

York, DG .

ASTRONOMICAL JOURNAL, 2003, 125 (04) :1849-1865

[6] The Sloan Lens ACS Survey. I. A large spectroscopically selected sample of massive early-type lens galaxies [J].

Bolton, AS ;

Burles, S ;

Koopmans, LVE ;

Treu, T ;

Moustakas, LA .

ASTROPHYSICAL JOURNAL, 2006, 638 (02) :703-724

[7] Discovery of a high-redshift Einstein ring [J].

Cabanac, RA ;

Valls-Gabaud, D ;

Jaunsen, AO ;

Lidman, C ;

Jerjen, H .

ASTRONOMY & ASTROPHYSICS, 2005, 436 (02) :L21-L25

[8] The dust content and opacity of actively star-forming galaxies [J].

Calzetti, D ;

Armus, L ;

Bohlin, RC ;

Kinney, AL ;

Koornneef, J ;

Storchi-Bergmann, T .

ASTROPHYSICAL JOURNAL, 2000, 533 (02) :682-695

[9] The stellar content of nearby star-forming galaxies. III. Unravelling the nature of the diffuse ultraviolet light [J].

Chandar, R ;

Leitherer, C ;

Tremonti, CA ;

Calzetti, D ;

Aloisi, A ;

Meurer, GR ;

de Mello, D .

ASTROPHYSICAL JOURNAL, 2005, 628 (01) :210-230

[10] The stellar, gas, and dynamical masses of star-forming galaxies at z ∼ 2 [J].

Erb, Dawn K. ;

Steidel, Charles C. ;

Shapley, Alice E. ;

Pettini, Max ;

Reddy, Naveen A. ;

Adelberger, Kurt L. .

ASTROPHYSICAL JOURNAL, 2006, 646 (01) :107-132

← 1 2 3 →