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GCN Circular 11552

Subject
GRB 110106B: early optical and near-IR observations
Date
2011-01-11T11:38:30Z (13 years ago)
From
Javier Gorosabel at IAA-CSIC <jgu@iaa.es>
J. Gorosabel, A.J. Castro-Tirado, M. Jelinek (IAA-CSIC, Granada), P. Kubanek (U. Valencia & IAA-CSIC, Granada), M. Visus, R. Tata (IAC, Obs. del Teide, Tenerife), A. Sota (OSN, Granada), S. Mottola, C. Faber (DLR, German  Aerospace Center, Berlin), report on behalf of a larger collaboration:

"We have carried out VRIH-band observations of the GRB 110106B XRT error circle (Sbarufatti et al. GCN Circ. 11525Not found
 
 
) using the 0.6m BOOTES2, 1.23m CAHA, the 1.5m OSN, the 0.82m IAC80 and the 1.5m TCS telescopes, as follows:

  Telescope              Date Jan.2011    Post-GRB-time   Filter    Lim.Mag.
                                               (UT)                    (min)                         (3sigma)
 -------------------------------------------------------------------------------------------
  0.6m BOOTES2    6.90041-6.90212    10.3-12.8            R        16.5
  1.23m CAHA         6.90179-6.91123    12.3-25.9            R        20.4
  1.5m OSN              6.90258-6.91564    13.4-32.2             I         21.0
  1.23m CAHA         6.91184-6.96185    26.8-98.8            V        20.5
  IAC80                     6.91533-6.92520    31.8-46.0            R        20.3
  1.5m TCS              6.94378-6.96465   72.8-102.8           H        18.0
 --------------------------------------------------------------------------------------------

No optical object is detected coincident with the optical afterglow position (Levan et al. GCN Circ. 11534Not found
 
 
, Berger et al. GCN Circ. 11540Not found
 
 
) down to the limiting magnitudes (Vega system) displayed in the above table."