GRB 091015
GCN Circular 10026
Subject
GRB 091015: correction to GCN 10025
Date
2009-10-16T13:36:13Z (16 years ago)
From
Diego Gotz at CEA <diego.gotz@cea.fr>
D. Gotz (CEA Saclay) on behalf of the IBAS Team reports:
GCN number 10025 contains a mistake: the burst name is 091015 since it has been detected on October 15th, and not on August 15th as stated ih the GCN.
GCN Circular 10029
Subject
GRB 091015: RTT150 optical observations
Date
2009-10-16T22:15:32Z (16 years ago)
From
Rodion Burenin at IKI, Moscow <rodion@hea.iki.rssi.ru>
R. Gumerov, A. Nemtinov, I. Bikmaev, N. Sakhibullin (KSU/AST),
R. Burenin, M. Pavlinsky, R. Sunyaev (IKI),
M. Parmaksizoglu, I. Khamitov, Z. Eker (TUG),
U. Kiziloglu (METU), E. Gogus (Sabanci Uni.)
report:
The optical afterglow of GRB 091015 (Ferrigno et al., GCN 10025, Gotz et
al., GCN 10026) was observed with Russian-Turkish 1.5-m telescope (RTT150,
Bakirlitepe, TUBITAK National Observatory, Turkey) in partially cloudy
conditions. We obtained a serie of 60s images in R centered at October 16,
17:40 UT, i.e. 0.76 days after the burst. The limiting magnitude in combined
image is estimated as R=~22. We do not detect any new optical object as
compared to DSS II red plate.
GCN Circular 10035
Subject
GRB 091015: Skynet/PROMPT Observations
Date
2009-10-18T21:20:57Z (16 years ago)
From
Aaron LaCluyze at U.North Carolina <lacluyze@physics.unc.edu>
A. LaCluyze, D. Reichart, K. Ivarsen, J. Haislip, R. Egger, A. Foster, J.
Moore, A. Oza, M. Schubel, J. Styblova, A. Trotter, J. A. Crain, and M.
Nysewander report:
Skynet observed ~90% of the INTEGRAL/IBAS localization of GRB 091015
(Ferrigno et al., GCN 10025; Gotz, GCN 10026) with one of the 16" PROMPT
telescopes at CTIO beginning 25.3 hours after the the trigger in z.
We do not detect any uncatalogued sources. 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)
27.1 PROMPT-5 144 x 80 z* 21.2 319 USNO B1 0.313 0.000
* Calibrated to I