Subject: IAUC 6721: GRB 970815
From: quai@cbatmpc (IAUC mailing list)

Circular No. 6721
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
[email-masked] or FAX 617-495-7231 (subscriptions)
[email-masked] or [email-masked] (science)
URL http://cfa-www.harvard.edu/cfa/ps/cbat.html
Phone 617-495-7244/7440/7444 (for emergency use only)

GRB 970815
     K. Z. Stanek, D. D. Sasselov, and M. R. Garcia, Harvard-
Smithsonian Center for Astrophysics; and C. R. Robinson,
Universities Space Research Association and Marshall Space Flight
Center, communicate:  "Analysis of images centered on the error box
of the x-ray counterpart to GRB 970815 (IAUC 6817) show no
significantly variable objects to a magnitude limit of R = 21.  The
variability for the 200 point sources in the field with 15.5 < R <
21 is rms < 0.2 mag.  The images were obtained with the 1.2-m
telescope of the F. L. Whipple Observatory on Aug. 16.31, 17.16,
17.22, 19.12, 19.19, 19.31, and 20.12 UT in the Cousins R filter.
The images cover a 11' x 11' area and are available as FITS files
by anonymous ftp at cfa-ftp.harvard.edu, in pub/kstanek/GRB970815,
or through the WWW at http://cfa-www.harvard.edu/~kstanek/.  Visual
inspection of the images obtained by D. D. Balam (see item above)
confirms this conclusion.  These images are available as FITS files
by anonymous ftp at astroftp.phys.uvic.ca, in /pub/balam/RXTE6335."

                      (C) Copyright 1997 CBAT
1997 August 22                 (6721)            Daniel W. E. Green