GCN Circular 16980
Subject
GRB 141028A: RATIR Optical and NIR Observations
Date
2014-10-29T04:12:02Z (10 years ago)
Edited On
2024-11-07T18:49:34Z (2 months ago)
From
Eleonora Troja at GSFC <eleonora.troja@nasa.gov>
Edited By
Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>
Eleonora Troja (GSFC), Antonino Cucchiara (ORAU/GSFC), Nat Butler (ASU),
Alan M. Watson (UNAM),
Alexander Kutyrev (GSFC), William H. Lee (UNAM), Michael G. Richer
(UNAM), Chris Klein (UCB),
Ori Fox (UCB), J. Xavier Prochaska (UCSC), Josh Bloom (UCB), Owen
Littlejohns (ASU),
Enrico Ramirez-Ruiz (UCSC), José A. de Diego (UNAM), Leonid Georgiev
(UNAM),
Jesús González (UNAM), Carlos Román-Zúñiga (UNAM), Neil Gehrels (GSFC),
and Harvey Moseley (GSFC) report:
We observed the field of the Fermi/LAT GRB 141028A (Bissaldi et al., GCN
16969, Roberts et al.
GCN 16971) with the Reionization and Transients Infrared Camera (RATIR;
www.ratir.org <http://www.ratir.org/>) on the
1.5m Harold Johnson Telescope at the Observatorio Astronómico Nacional
on Sierra San Pedro
Mártir from 2014/10 29.08 to 2014/10 29.13 UTC (from 13.62 to 14.82
hours after the
Fermi-GBM trigger), obtaining a total of 1.07 hours exposure in the r,
i and z bands.
At the position of the XRT and optical counterparts (Kennea et al., GCN
16978, Gorbovskoy
et al. GCN 16972, Graham et al. GCN 16977), in comparison with the SDSS
DR9, we
obtain the following detections:
r 20.09 +/- 0.02
i 19.85 +/- 0.02
z 19.50 +/- 0.10
These magnitudes are in the AB system and are not corrected for Galactic
extinction in the direction of the GRB.
We thank the staff of the Observatorio Astronómico Nacional in San Pedro
Mártir.
[GCN OPS NOTE(29oct14)" Per author's request, the Subject-line was
corrected from "29A" to "28A".]