[vsnet-grb-info 9362] GRB 100615A: GROND observations, upper limits
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Tue Jun 15 14:47:46 JST 2010
TITLE: GCN CIRCULAR
NUMBER: 10844
SUBJECT: GRB 100615A: GROND observations, upper limits
DATE: 10/06/15 05:47:41 GMT
FROM: Sylvio Klose at TLS Tautenburg <klose at tls-tautenburg.de>
A. Nicuesa, S. Klose (both TLS Tautenburg), and J. Greiner (MPE Garching),
report on behalf of the GROND team:
GROND (Greiner et al. 2008, PASP 120, 405), the 7-channel imager mounted
at the 2.2m ESO/MPI telescope on La Silla, started follow-up observations
of GRB 100615A (D'Elia et al. 2010, GCN 10841) on June 15 at 2:05 UT
(about 6 min after the trigger).
Within the 3.7 arcsec XRT error circle we do not find any afterglow
candidate. Preliminary measured upper limits based on an 8 min observing
block starting at 2:20 UT are (in the AB system, 3 sigma):
g' > 24.2,
r' > 23.9,
i' > 22.9,
z' > 22.5,
J > 21.4,
H > 20.7,
K > 20.3,
using GROND zeropoints and the 2MASS catalog. This is in agreement with
the report by Dhillon et al. about the non-detection in the i' band (GCN
10842).
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