Exploring First Stars Era with GLAST

Details Exploring First Stars Era with GLAST Exploring First Stars Era with GLAST

2007-04-02

arxiv.org/abs/0704.0225v1

AIP Conf.Proc.921:243-245,2007

Astronomy and Astrophysics

Astrophysics

to appear in Proceedings of 1st International GLAST Symposium

Scientific paper

10.1063/1.2757312

Cosmic infrared background (CIB) includes emissions from objects inaccessible to current telescopic studies, such as the putative Population III, the first stars. Recently, strong direct evidence for significant CIB levels produced by the first stars came from CIB fluctuations discovered in deep Spitzer images. Such CIB levels should have left a unique absorption feature in the spectra of high-z GRBs and blazars as suggested in [4]. This is observable with GLAST sources at z>2 and measuring this absorption will give important information on energetics and constituents of the first stars era.

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