Short-Hard Gamma-Ray Burst Afterglows with Chandra

Details Short-Hard Gamma-Ray Burst Afterglows with Chandra Short-Hard Gamma-Ray Burst Afterglows with Chandra

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cxo..prop.1724f&link_type=abstract

Chandra Proposal ID #06501007

Other

Chandra Proposal Id #06501007

Scientific paper

Seven years after the afterglow detections that revolutionized studies of the long-soft gamma-ray bursts, not even one afterglow of a short-hard GRB has been seen. Theoretical calculations suggest that short-hard afterglows will be much fainter than their long-soft counterparts, faint enough that ground-based detections will be challenging under the best of circumstances. Deep Chandra observations, on the other hand, should be able to detect the X-ray afterglow and localize it to sub-arcsecond precision. Such a localization will be critical to identifying the GRB host galaxy and and will also address burst progenitor models: high-mass stars will be found in the midst of their host galaxy's rest-frame optical light, while neutron star mergers may occur in the host galaxy halos.

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