GCN Circular 10109
Subject
GRB 090920: Skynet/DSO Detection
Date
2009-10-29T21:38:15Z (15 years ago)
From
Aaron LaCluyze at U.North Carolina <lacluyze@physics.unc.edu>
LaCluyze, A., D. Reichart, A. Smith, D. Caton, L. Hawkins, J. Haislip, K.
Ivarsen, R. Egger, A. Foster, J. Moore, A. Oza, M. Schubel, J. Styblova, A.
Trotter, J. A. Crain, and M. Nysewander report:
Skynet observed the Swift/BAT localization of GRB 090920 (Racusin et al.,
GCN 10048) with the 14" Dark Sky Observatory telescope in North Carolina
beginning 12.0 hours after the trigger in I.
We detect the afterglow (Racusin et al., GCN 10048). Stacking only images
that increase the limiting magnitude yields:
mean 1-sig. 1-sig.
time sys. stat.
since cal. cal. cal.
trig. tel. exp. fil. magnitude stars* unc. unc.
(h) (# x s) (mag) (mag)
12.6 DSO-14 18 x 160 I 19.75 +0.26 -0.21 13 SDSS 7 0.020 0.001
* Transformed using Jester et al., 2005, ApJ, 130, 873.