[vsnet-grb-info 15144] GRB 140622A: RATIR Optical and NIR Observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  16436
SUBJECT: GRB 140622A: RATIR Optical and NIR Observations
DATE:    14/06/22 19:55:21 GMT
FROM:    Nat Butler at Az State U  <natbutler at asu.edu>

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), 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 short-duration GRB 140622A (D'Elia, et al., GCN
16433) 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 2014/06 22.40 to
2014/06 22.47 UTC (1.2 minutes to 1.70 hours after the BAT trigger),
obtaining a total of 1.20 hours exposure in the r and i bands and 0.51
hours exposure in the Z and Y bands.

For a source within the Swift-XRT error circle (Osborne, et al., GCN
16434), in comparison with 2MASS, we obtain the following upper limits
(3-sigma):

  r     > 23.64
  i     > 23.49
 Z     > 19.41
  Y     > 18.73

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.