[vsnet-grb-info 5928] GRB 080309: REM optical/NIR observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  7574
SUBJECT: GRB 080309: REM optical/NIR observations
DATE:    08/04/09 02:28:26 GMT
FROM:    Paolo D'Avanzo at INAF-OAB  <paolo.davanzo at brera.inaf.it>

P. D'Avanzo, S. Covino, D. Malesani, D. Fugazza, L.A. Antonelli, L. 
Calzoletti, S. Campana, G. Chincarini, M.L. Conciatore, S. Cutini, V. 
D'Elia, F. D'Alessio, F. Fiore, P. Goldoni, D. Guetta, C. Guidorzi, G.L. 
Israel, E. Maiorano, N. Masetti, A. Melandri, E.J.A. Meurs, L. Nicastro, 
E. Palazzi, E. Pian, F. Piranomonte, S. Piranomonte, L. Stella, G. 
Stratta, G. Tagliaferri, G. Tosti, V. Testa, S.D. Vergani, and F. 
Vitali, report on behalf of the REM team:

The robotic 60-cm REM telescope located at La Silla (Chile) observed 
automatically the field of the GRB 080309 (Holland et al., GCN 7573) 
starting about 81 seconds after the burst. Airmass was large (about 2.9).

Preliminary photometry of our earliest images (R: 30 s, H: 50 s) reveal 
no new sources inside the XRT error circle down to 3sigma limiting 
magnitudes of H ~ 15.0 and R ~ 17.0.