HEAD 2003 Meeting
Session 44. Gamma-ray Bursts II
Oral, Tuesday, March 25, 2003, 6:30-7:30pm

[Previous] | [Session 44] | [Next]

[44.01] The Chandra HETGS Spectrum of GRB 020813: Evidence for Recent SN

N. Butler, H. Marshall, G. Ricker, P. Ford, R. Vanderspek, G. Crew (MIT CSR), D. Lamb (U. Chicago)

We report the detection of lines from light elements (Si, S, and Ca), and possibly Ni, in the Chandra HETGS spectrum taken ~1 day after GRB 020813. These appear to be variable and seem to be well fit by a reflection model. Lines from Fe are not observed, indicating that a pre-cursor SN must have been recent. We discuss the significance and interpretation of the spectral features observed.

This research was supported in part by NASA contract NASW-4690.

[Previous] | [Session 44] | [Next]

Bulletin of the American Astronomical Society, 35#2
© 2003. The American Astronomical Soceity.