[vsnet-grb-info 9326] GRB 100526B: Swift-XRT confirmation of fading afterglow

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  10809
SUBJECT: GRB 100526B: Swift-XRT confirmation of fading afterglow
DATE:    10/05/28 05:40:58 GMT
FROM:    Loredana Vetere at PSU  <vetere at astro.psu.edu>

L. Vetere and M. H. Siegel (PSU) report on behalf of the Swift-XRT team:

We have now collected 5.7 ks of Swift-XRT Photon Counting mode data on
the GRB 100526B (Siegel et al. GCN Circ. 10799), from 3289 s to 34.8 ks
after the BAT trigger.

The source reported by Kennea et al. (GCN Circ. 10802) is now only
marginally detected, with a count rate of 1.5x10^-3 count s^-1
(corresponding to an observed flux of 7.1x10^-14 erg cm^-2 s^-1).

With this fading, we can confirm that this source is the X-ray
afterglow of GRB 100526B.

The results of the XRT-team automatic analysis are available at
http://www.swift.ac.uk/xrt_products/00423184.

This circular is an official product of the Swift-XRT team.