Gamma-ray burst host galaxies: A legacy approach

被引：0
作者：
Malesani, Daniele [1 ]
Hjorth, Jens [1 ]
Fynbo, Johan P. U. [1 ]
Milvang-Jensen, Bo [1 ]
Jakobsson, Pall [2 ]
Jaunsen, Andreas O. [3 ]
机构：
[1] Niels Bohr Inst, Dark Cosmol Ctr, Juliane Maries Vej 30, DK-2100 Copenhagen O, Denmark
[2] Univ Iceland, Ctr Astrophys & Cosmol, Reykjavik, Iceland
[3] Univ Oslo, Inst Theoret Astrophys, Oslo, Norway
来源：
PROBING STELLAR POPULATIONS OUT TO THE DISTANT UNIVERSE | 2009年 / 1111卷
基金：
新加坡国家研究基金会;
关键词：
gamma-rays:; bursts; LY-ALPHA; REDSHIFT; METALLICITY; AFTERGLOW; DISTRIBUTIONS; DUST;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Long-duration gamma-ray burs are produced in the death of young, massive stars. GRBs thus provide a precious cosmological tool, since they pinpoint locations in the Universe where active star formation is ongoing. We describe here the preparation and collection of a large, unbiased sample of GRB host galaxies. The goals of our program are the very discovery of the hosts, the search for reddened systems, the determination of redshifts, and the study of the Ly alpha emission. Preliminary results include a large detection rate in the optical, a low fraction of red systems, an increase of the redshift completeness (including several systems in the "redshift desert"), and a lower-then-expected recovery of Ly alpha emission.
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页码：513 / +
页数：2
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