GCN Circular 28822
Subject
GRB 201015A: Late X-ray Detections with Chandra
Date
2020-11-03T16:45:05Z (4 years ago)
From
Ben Gompertz at U of Warwick <b.gompertz@warwick.ac.uk>
B. Gompertz (1); A. Levan (2); N. Tanvir (3); A. Fruchter (4); A.
Cucchiara (5); J. Greiner (6); J. Hjorth (7); T. Kangas (4); G. Lamb
(3); J. Lyman (1); S. Oates (8); P. O'Brien (3); J. Osborne (3); K. Page
(3); D. Perley (9); E. Pian (10); D. Steeghs (1); K. Wiersema (1); G.
Wynn (3)
((1) University of Warwick, (2) Radboud University, (3) University of
Leicester, (4) Space Telescope Science Institute, (5) University of the
Virgin Islands, (6) MPE Garching, (7) University of Copenhagen, (8)
University of Birmingham, (9) Liverpool John Moores University, (10)
INAF-OAS)
report:
We observed the position of GRB 201015A (D'Elia et al., GCN 28632) with
the Chandra X-ray Observatory with epochs 8.4 and 13.6 days after
trigger. The X-ray afterglow is clearly detected with a flux around 100x
brighter than expected based on the extrapolation of the early XRT data
taken between 0.03 and 0.8 days after burst. The source is seen to fade
between the two Chandra epochs with a power-law index of approximately
-0.8. A Swift ToO has been approved.