[vsnet-grb-info 8473] GRB 091003: Skynet/DSO Observations
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Mon Oct 5 03:14:20 JST 2009
TITLE: GCN CIRCULAR
NUMBER: 9989
SUBJECT: GRB 091003: Skynet/DSO Observations
DATE: 09/10/04 18:14:15 GMT
FROM: Josh Haislip at U.North Carolina <haislip at physics.unc.edu>
J. Haislip, D. Reichart, A. Smith, D. Caton, L. Hawkins, K. Ivarsen, A.
LaCluyze, A. Foster, J. Moore, A. Oza, M. Schubel, J. Styblova, A. Trotter,
J. A. Crain, and M. Nysewander report:
Skynet observed the Fermi/LAT localization (McEnery, Chiang & Hanabata, GCN
9985) of GRB 091003 (Rau, GCN 9935) with the 14" Dark Sky Observatory
telescope in North Carolina beginning 20.2 hours after the trigger in BVRI.
We do not detect the afterglow (Starling & Beardmore, GCN 9986; Gronwall &
Starling, GCN 9987). Stacking only images that increase the limiting
magnitude yields:
mean 1-sig. 1-sig.
time 3-sig. sys. stat.
since lim. cal. cal. cal.
trig. tel. exp. fil. mag. stars* unc. unc.
(h) (# x s) (mag) (mag)
21.0 DSO-14 16 x 80 V 19.6 58 SDSS 7 0.076 0.000
21.0 DSO-14 17 x 80 B 19.5 33 SDSS 7 0.087 0.001
21.0 DSO-14 16 x 80 R 19.8 64 SDSS 7 0.064 0.000
21.0 DSO-14 16 x 80 I 19.3 45 SDSS 7 0.049 0.000
* Transformed using Jester et al., 2005, ApJ, 130, 873.
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