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GCN Circular 14764

Subject

GRB 130603B: RATIR Optical and NIR Observations

Date

2013-06-04T17:49:36Z (11 years ago)

From

Eleonora Troja at GSFC <eleonora.troja@nasa.gov>

Eleonora Troja (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), Antonino Cucchiara (UCSC), 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 observed the field of GRB 130603B (Melandri, et al., GCN 14735Not found
 
 
) 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 Astron�mico Nacional on
Sierra San Pedro M�rtir from 2013/06 4.16 to 2013/06 4.27 UTC (12.01
to 14.78 hours after the BAT trigger), obtaining a total of 1.93 hours
exposure in the r' and i' bands and 0.81 hours exposure in the Z,
Y, J, and H bands.

At the location of the optical afterglow (Levan et al., GCN 14742Not found
 
 
),
in comparison with SDSS DR8 and 2MASS, we obtain the following detections:

    r'    20.78 +/- 0.03
    i'    20.52 +/- 0.03
    Z    20.20 +/- 0.05
    Y    19.94 +/- 0.05
    J     19.97 +/- 0.06
    H    19.55 +/- 0.06

These magnitudes are in the AB system and not corrected for Galactic
extinction in the direction of the GRB.
Photometry was performed adopting a large aperture which includes both the
afterglow and its host galaxy.

We thank the staff of the Observatorio Astron�mico Nacional in San Pedro
M�rtir.