GCN Circular 3259
Subject
GRB 050412: PROMPT VRcIc Observations
Event
Date
2005-04-13T19:53:06Z (21 years ago)
From
Melissa Nysewander at UNC,Chapel Hill <mnysewan@physics.unc.edu>
M. Nysewander, D. Reichart, J. A. Crain report on behalf of the UNC team of
the FUN GRB Collaboration:
We observed the BAT localization of GRB 050412 (Cummings et al., GCN 3237)
with PROMPT beginning 5m 50s after the burst.
We do not detect a source within the XRT localization (Tamburelli et al.,
GCN 3241; Mangano et al. GCN 3253) nor the source identified by Jensen et
al. (GCN 3243).
3-sigma limiting magnitudes are based on 10 USNO-B1.0 stars for Rc and Ic
observations, and 10 NOMAD stars for V observations:
Start Time Integration Filter Limiting Telescope
Since GRB Time Magnitude
5m 50s 10 x 10s Rc 18.5 PROMPT-5
8m 48s 10 x 10s Ic 18.0 PROMPT-5
+ 1 x 20s
14m 30s 1 x 30s Rc 17.9 PROMPT-5
15m 46s 3 x 30s V 20.0 PROMPT-5
+ 10 x 60s
39m 44s 10 x 60s Rc 20.3 PROMPT-5
50m 42s 10 x 60s Ic 18.9 PROMPT-5
61m 46s 10 x 60s V 19.2 PROMPT-5
73m 22s 10 x 60s Rc 20.0 PROMPT-5
84m 29s 10 x 60s Ic 18.3 PROMPT-5
95m 24s 30 x 60s Rc 17.6 PROMPT-5
PROMPT is still being built and commissioned.