[vsnet-grb-info 14468] GRB 140129A: Continued RATIR Optical and NIR Observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  15782
SUBJECT: GRB 140129A: Continued RATIR Optical and NIR Observations
DATE:    14/01/31 15:09:30 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 again observed the field of GRB 140129A (Melandri, et al., GCN 15760)
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 2014/01 31.11 to 2014/01 31.20 UTC
(47.35 to 49.51 hours after the BAT trigger), obtaining a total of 1.38
hours exposure in the r and i bands and 0.58 hours exposure in the Z, Y, J,
and H bands.

The afterglow observed previously by RATIR (Cucchiara, et al., GCN 15762;
Butler, et al., GCN 15779) is no longer detected.  In comparison with the
SDSS DR9 and 2MASS, we obtain the following upper limits (3-sigma):

  r     > 22.99
  i     > 22.59
  Z     > 21.59
  Y     > 21.14
  J     > 20.82
  H     > 20.49

These magnitudes are in the AB system and are not corrected for Galactic

extinction in the direction of the GRB.