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GCN Circular 16026

Subject

GRB 140320A: RATIR Optical and NIR Observations

Date

2014-03-21T23:44:39Z (11 years ago)

Edited On

2024-11-07T18:52:01Z (5 months ago)

From

Owen Littlejohns at Az State U <olittlej@asu.edu>

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>

Owen Littlejohns (ASU), 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), Antonino Cucchiara (ORAU/GSFC), Eleonora
Troja (GSFC), 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 GRB 140320A (Cannizzo, et al., GCN 16000Loading...
 
 ) with
the Reionization and Transients Infrared Camera (RATIR; www.ratir.org)
on the 1.5m Harold Johnson Telescope at the Observatorio Astronómico
Nacional on Sierra San Pedro Mártir from 2014/03 21.42 to 2014/03 21.51
UTC (31.77 to 33.94 hours after the BAT trigger), obtaining a total of
1.40 hours exposure in the r and i bands and 0.56 hours exposure in the
Z, Y, J, and H bands.

For a source within the Swift-XRT error circle, in comparison with 2MASS,
we obtain the following upper limits (3-sigma):

  r     > 22.70
  i     > 22.38
  Z     > 21.23
  Y     > 21.27
  J     > 20.82
  H     > 20.24

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.