Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 7244
SUBJECT: GRB 080130: REM NIR observations
DATE: 08/01/31 08:42:57 GMT
FROM: Paolo D'Avanzo at INAF-OAB
P. D'Avanzo, S. Covino, L.A. Antonelli, D. Fugazza, L. Calzoletti, S.
Campana, G. Chincarini, M.L. Conciatore, S. Cutini, V. D'Elia, F.
Dalessio, F. Fiore, P. Goldoni, D. Guetta, C. Guidorzi, G.L. Israel,
N. Masetti, A. Melandri, E. Meurs, L. Nicastro, E. Palazzi, E. Pian, S.
Piranomonte, L. Stella, G. Stratta, G. Tagliaferri, G. Tosti, V.Testa,
S.D. Vergani, F. Vitali report on behalf of the REM team:
The robotic 60-cm REM telescope located at La Silla (Chile) observed the
field of the GRB 080130 (Copete et al., GCN 7242). Observations were
performed in the H-band on Jan 31.3041 (about 0.8 days after the burst ) .
We detect two objects inside the XRT error box (Starling & Stamatikos,
GCN 7243), both present in the 2MASS catalogue, at the following
coordinates (J2000):
A) R.A. = 17:26:27.71, Dec. = -53:11:20.3
B) R.A. = 17:26:29.22, Dec. = -53:11:20.3
with an uncertainty of 0.4". The magnitude of both objects seems to be
consistent with the value reported in the 2MASS catalogue. We note that
a third 2MASS object is present inside the XRT error box at the
coordinates (J2000):
C) R.A. = 17:26:28.76, Dec. = -53:11:14.4
but it is below our detection limit. No other sources are visible within
the XRT error box down to a limiting magnitude of H > 16.1 (3sigma c.l.
, calibrated against the 2MASS catalogue).
Sources A, B and C are also visible in the DSS image catalogue and seem
to have a stellar-like profile.
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