An overdensity of Lyα emitters at redshift z ≈ 5.7 near the Hubble Ultra Deep Field

被引：25
|
作者：
Wang, JX [1 ]
Malhotra, S
Rhoads, JE
机构：
[1] Univ Sci & Technol China, Ctr Astrophys, Hefei 230026, Anhui, Peoples R China
[2] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
[3] Space Telescope Sci Inst, Baltimore, MD 21218 USA
来源：
ASTROPHYSICAL JOURNAL | 2005年 / 622卷 / 02期
关键词：
cosmology : observations; galaxies : evolution; galaxies : high-redshift; large-scale structure of universe;
D O I：
10.1086/429617
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have identified an obvious and strong large-scale structure at redshift z approximate to 5.75 in a wide (31' x 33') field, narrowband survey of the Chandra Deep Field-South region. This structure is traced by 17 candidate Ly alpha emitters, among which 12 are found in an 823 nm filter (corresponding to Lya at z = 5.77 +/- 0.03) and five in an 815 nm image (z = 5.70 +/- 0.03). The Ly alpha emitters in both redshift bins are concentrated in one quadrant of the field. The Hubble Ultra Deep Field, the Chandra Deep Field-South, and the Great Observatories Origins Deep Survey-South fields all lie near the edge of this overdensity region. Our results are consistent with reports of an overdensity in the Ultra Deep Field region at z approximate to 5.9. This structure is the highest redshift overdensity found so far.
引用
收藏
页码：L77 / L80
页数：4
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