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GRB 100205A: GROND upper limits
Nicuesa et al.
SOURCE: GCN
TITLE: GCN CIRCULAR
NUMBER: 10383
SUBJECT: GRB 100205A: GROND upper limits
DATE: 10/02/06 20:58:37 GMT
FROM: Ana Nicuesa at TLS Tautenburg <ana@tls-tautenburg.de>

A. Nicuesa (Tautenburg Obs.), T. Kruehler (MPE), A. Rossi (Tautenburg Obs.), and J. Greiner (MPE Garching) report on behalf of the GROND team:

We observed the field of GRB 100205A (Swift trigger #411248; Racusin et al., GCN 10361) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2 m MPI/ESO telescope at LaSilla Observatory (Chile). Due to cloud coverage, observations started only on 05 Feb. 2010 at 06:37:58 UT, 2.3 h after the burst, and were severely affected by passing cirrus. In stacked images with a total integration time of 12 minutes in JHK and 13 minutes in g'r'i'z' we do not detect the NIR afterglow candidate reported by Tanvir et al. (GCN 10366) down to the following limits, all in the AB system: g' > 22.8, r' > 23.0, i' > 22.4, z' > 22.2, J > 21.0, H > 20.6 and K > 20.3 These upper limits have been obtained using SDSS and 2MASS field stars as reference, and are consistent with the magnitudes reported by Cucchiara et al. (GCN 10374).

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