GCN Circular 6069

Subject

GRB070124: Swift-XRT Follow-up Observation

Event

Date

2007-02-02T00:13:08Z (20 years ago)

From

Loredana Vetere at PSU <vetere@astro.psu.edu>

L. Vetere, J. Racusin, C. Pagani, D.N. Burrows (PSU) report on behalf
of the Swift-XRT team:

The entire IPN error box for GRB 070124 (Hurley et al., GCN 6022Loading...
 
 ) has
been observed by XRT in three different pointings (target id. 20046,
20048, 20049 for the central, upper and lower part, respectively) with
different exposure times:

 target id           Tstart                     Tend             expo
   20046     2007-01-25  15:36:39.9    2007-01-31  22:55:58.2   22.5ks
   20048     2007-01-31  00:26:23.5    2007-01-31  23:03:57.7    6.1ks
   20049     2007-01-31  00:34:25.5    2007-01-31  23:12:56.4    6.5ks

Only four sources are detected inside the IPN error box with the following
positions (uncertainty of 5 arcsec, radius, 90% containment, including
systematic uncertainty) and count rates:

    Ra(J2000)    Dec(J2000)       count/s         target id
   14 45 03.4   +54 27 56.4   (1.2 +/- 0.3)E-03     20046
   14 46 09.9   +54 38 58.2   (6.9 +/- 2.6)E-04     20046
   14 44 53.2   +54 26 30.5   (1.8 +/- 0.4)E-03     20046
   14 44 53.9   +54 26 37.2   (1.8 +/- 0.8)E-03     20048

None of these sources shows a fading behaviour, we thus conclude that
XRT did not detect the X-ray afterglow of GRB 070124.

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