Directly imaging damped Lyα galaxies at z > 2-II. Imaging and spectroscopic observations of 32 quasar fields

被引:35
|
作者
Fumagalli, Michele [1 ,2 ]
O'Meara, John M. [3 ]
Prochaska, J. Xavier [4 ,5 ]
Kanekar, Nissim [6 ]
Wolfe, Arthur M. [7 ,8 ]
机构
[1] Univ Durham, Dept Phys, Inst Computat Cosmol, Durham DH1 3LE, England
[2] Carnegie Observ, Pasadena, CA 91101 USA
[3] St Michaels Coll, Dept Chem & Phys, Colchester, VT 05439 USA
[4] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA
[5] Univ Calif Santa Cruz, Univ Calif Observ, Lick Observ, Santa Cruz, CA 95064 USA
[6] TIFR, Natl Ctr Radio Astrophys, Pune 411007, Maharashtra, India
[7] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA
[8] Univ Calif San Diego, Ctr Astrophys & Space Sci, La Jolla, CA 92093 USA
基金
美国国家科学基金会; 英国科学技术设施理事会;
关键词
ISM: atoms; galaxies: evolution; galaxies: high-redshift; quasars: absorption lines; galaxies: star formation; ultraviolet: ISM; MASS-METALLICITY RELATION; DARK-MATTER UNIVERSE; SIMILAR-TO; 5; NEUTRAL GAS; ABUNDANCE DATABASE; ABSORPTION-LINES; STANDARD STARS; DATA RELEASE; LYMAN LIMIT; SYSTEMS;
D O I
10.1093/mnras/stu1512
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Damped Ly alpha absorbers (DLAs) are a well-studied class of absorption line systems, and yet the properties of their host galaxies remain largely unknown. To investigate the origin of these systems, we have conducted an imaging survey of 32 quasar fields with intervening DLAs between z similar to 1.9 and 3.8, leveraging a technique that allows us to image galaxies at any small angular separation from the background quasars. In this paper, we present the properties of the targeted DLA sample, new imaging observations of the quasar fields, and the analysis of new and archival spectra of the background quasars.
引用
收藏
页码:1282 / 1300
页数:19
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