[vsnet-grb-info 5582] GRB 080130: REM NIR observations

GCN Circulars gcncirc at capella.gsfc.nasa.gov
Thu Jan 31 17:43:02 JST 2008


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  <paolo.davanzo at brera.inaf.it>

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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