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GCN Circular 15782

Subject
GRB 140129A: Continued RATIR Optical and NIR Observations
Date
2014-01-31T15:09:30Z (10 years ago)
From
Nat Butler at Az State U <natbutler@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), Jos� A. de Diego (UNAM), Leonid Georgiev
(UNAM), Jes�s Gonz�lez (UNAM), Carlos Rom�n-Z��iga (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 Astron�mico
Nacional on Sierra San Pedro M�rtir 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.
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