The redshift of a lensing galaxy in PMN J0134-0931

被引：24
作者：
Hall, PB
Richards, GT
York, DG
Keeton, CR
Bowen, DV
Schneider, DP
Schlegel, DJ
Brinkmann, J
机构：
[1] Princeton Univ Observ, Princeton, NJ 08544 USA
[2] Pontificia Univ Catolica Chile, Fac Fis, Dept Astron & Astrofis, Santiago 22, Chile
[3] Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA
[4] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA
[5] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[6] Apache Point Observ, Sunspot, NM 88349 USA
来源：
ASTROPHYSICAL JOURNAL | 2002年 / 575卷 / 02期
基金：
美国国家航空航天局; 美国国家科学基金会;
关键词：
dust; extinction; gravitational lensing; quasars : individual (PMN J0134-0931);
D O I：
10.1086/342784
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The Sloan Digital Sky Survey (SDSS) automatically targeted as a quasar candidate the recently discovered, gravitationally lensed, extremely reddened z = 2.2 quasar PMN 0134-0931. The SDSS spectrum exhibits Ca II absorption at z = 0.76451, which we identify as the redshift of a lensing galaxy. Hubble Space Telescope imaging shows that components C, D, and E of the system are significantly redder than components A or B and detects faint galaxy emission between D and A+B. The redshift of the dust responsible for the reddening remains unconstrained with current data. However, we outline a model wherein lensing and differential reddening by a z = 0.76454 galaxy pair can entirely explain this system.
引用
收藏
页码：L51 / L54
页数：4
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