Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 3693

GRB 050726, SMARTS optical/IR observations
2005-07-28T05:18:50Z (19 years ago)
Bethany Cobb at Yale U <>
B. E. Cobb and C. D. Bailyn (Yale), part of the larger SMARTS
consortium, report:

Using the ANDICAM instrument on the 1.3m telescope at CTIO, we
obtained optical/IR imaging of the error region of GRB 050726
(GCN 3682, Barthelmy et al.) with a mid-exposure time of
2005-07-27 00:39 UT, which is ~19.6 hours post-burst.
Total summed exposure times amounted to 36 minutes in I and 30 minutes in 
J, resulting in approximate limiting magnitudes of I>22 and J>20.

In comparison with SDSS and 2MASS frames, no new optical
or IR sources are detected in the vicinity of the
reported X-ray afterglow.

[GCN OPS NOTE(28jul05):  Per author's request, the Subject-line
was changed from "050124" to "050726".]
Looking for U.S. government information and services? Visit