High Resolution Grating Spectroscopy of HETE-Localized GRBs with the Chandra X-ray Observatory

Details High Resolution Grating Spectroscopy of HETE-Localized GRBs with the Chandra X-ray Observatory High Resolution Grating Spectroscopy of HETE-Localized GRBs with the Chandra X-ray Observatory

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.6905b&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #69.05; Bulletin of the American Astronomical Society, Vol. 34, p.1220

Astronomy and Astrophysics

Astronomy

Scientific paper

Very recently, two gamma-ray bursts (GRBs) detected by the HETE satellite (GRB 020813, GRB 021004) have each been observed for 80 ksec with the Chandra X-ray Observatory commencing less than one day after the event. The rapid dissimination of accurate HETE localizations resulted in the prompt identification of optical counterparts for these two bursts, and the X-rays detected from these two bursts are the brightest GRB afterglows measured by Chandra to date. We will present detailed analyses of X-ray spectra and light curves from these bursts, particularly for GRB 020813, and will discuss the relevance of spectral features in understanding and constraining the GRB host environment. This research was supported in part by NASA contract NASW-4690.

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