Are Submm-Bright GRB Hosts Powered by AGN?

Details Are Submm-Bright GRB Hosts Powered by AGN? Are Submm-Bright GRB Hosts Powered by AGN?

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cxo..prop.2013f&link_type=abstract

Chandra Proposal ID #07701063

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Chandra Proposal Id #07701063

Scientific paper

The association of long-period gamma-ray bursts with stellar core collapse offers a new approach to the study of distant star formation, as GRBs are detectable through large columns of gas and dust and their detection is independent of the host galaxy luminosity. The emerging picture differs notably from that drawn by Lyman break and submm surveys: GRB host galaxies are unusually faint and blue and only a few hosts show high submm or radio luminosities. Furthermore, even these show the blue rest-frame colors of most other GRB hosts rather than the red colors of typical submm-bright galaxies. Here we propose to use Chandra to determine whether the unusual nature of the submm-bright hosts may result from the simultaneous presence of rapid star formation and an obscured AGN.

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