Skip to main content
Introducing Einstein Probe, Astro Flavored Markdown, and Notices Schema v4.0.0. 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