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

GCN Circular 16469

Subject
GRB 140626A: TAROT La Silla observatory optical observations
Date
2014-06-28T16:54:48Z (10 years ago)
From
Alain Klotz at IRAP-CNRS-OMP <Alain.Klotz@free.fr>
Klotz A., Turpin D. (IRAP-CNRS-OMP),
Boer M., Gendre B., Siellez K., Dereli H., Bardho O. (UNS-CNRS-OCA),
Atteia J.L. (IRAP-CNRS-OMP) report:

We imaged the field of GRB 140626A detected by SWIFT
(trigger 602604) with the TAROT robotic telescope (D=25cm)
located at the European Southern Observatory,
La Silla observatory, Chile.

The observations started 72.1s after the GRB trigger
(15.9s after the notice). The elevation of the field decreased from
23 degrees above horizon and weather conditions
were good. Images were not accessible during two days
due to a disk access problem.

The first image is trailed with a duration of 60.0s
(see the description in Klotz et al., 2006, A&A 451, L39).
We do not detect any OT with a limiting magnitude of:
t0+72.1s to t0+132.1s : R > 16.6

The second image is 30.0s exposure in tracking mode:
t0+145.4s to t0+175.4s : R > 17.6

We co-added a series of exposures:
t0+145.4s to t0+437.3s : R > 19.2

Magnitudes were estimated with the nearby USNO-B1 stars
and are not corrected for galactic dust extinction.
Looking for U.S. government information and services? Visit USA.gov