A fossil record of galaxy encounters

被引：68

作者：

Elbaz, D ^{[1
]}

Cesarsky, CJ

机构：

[1] Ctr Etud Saclay, CEA, Serv Astrophys, F-91191 Gif Sur Yvette, France

[2] European So Observ, D-85748 Garching, Germany

来源：

SCIENCE | 2003年 / 300卷 / 5617期

关键词：

D O I：

10.1126/science.1081525

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The cosmic infrared background (CIRB) is a record of a large fraction of the emission of light by stars and galaxies over time. The bulk of this emission has been resolved by the Infrared Space Observatory camera. The dominant contributors are bright starburst galaxies with redshift z similar to 0.8; that is, in the same redshift range as the active galactic nuclei responsible for the bulk of the x-ray background. At the longest wavelengths, sources of redshift z greater than or equal to 2 tend to dominate the CIRB. It appears that the majority of present-day stars have been formed in dusty starbursts triggered by galaxy-galaxy interactions and the buildup of large-scale structures.

引用

页码：270 / 274

页数：5

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