GCN Circular 706
Subject
GRB000615, R-band photometry
Event
Date
2000-06-15T19:58:37Z (25 years ago)
From
Krzysztof Z. Stanek at CfA <kstanek@cfa.harvard.edu>
K. Z. Stanek (CfA), P. M. Garnavich (Notre Dame) and P. Berlind (FLWO)
report:
We have observed the BeppoSAX error-box of GRB000615 (GCN 703) using
the FLWO 1.2-meter telescope on Mt. Hopkins. The center of the revised
error-box (GCN 705) is located at Galactic coordinates (l,b)=(109.58
deg, 38.81 deg), and the Schlegel et al. (1998) Galactic reddening
toward this direction is very small, E(B-V)=0.024 mag (A_R=0.063
mag). The stellar field is relatively sparse in this direction.
We obtained two 300 sec R-band images, starting at UT June 15 10:30
(i.e. about 4 hours 12 minutes after the detection by BeppoSAX)
followed by one 600 sec R-band image starting at UT June 15 10:42.
Visual comparison of our combined 1200 sec R-band image with the
POSS-II red plate, which reaches about R~20.0 mag, reveals no obvious
``new'' objects. Using DAOPHOT-II (Stetson 1992) on our combined
R-band image we detect about 180 objects with R<20.0 mag in 11x11
arcmin field.
The combined R-band image of the error-box can be seen at
http://cfa-www.harvard.edu/cfa/oir/Research/GRB/.
Further observations are planned at FLWO.
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