[vsnet-grb-info 5904] GRB 080330: REM optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  7554
SUBJECT: GRB 080330: REM optical observations
DATE:    08/03/31 08:35:23 GMT
FROM:    Paolo D'Avanzo at INAF-OAB  <paolo.davanzo at brera.inaf.it>

P. D'Avanzo, S. Covino, 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. 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 
automatically the field of the GRB 080330 (Mao et al., GCN 7537) on 
March 30 03:42:11 UT (about 55 seconds after the burst).

We clearly detect the afterglow reported in GCNs 7536 (Klotz et al.), 
7537 (Mao et al.) 7538 (Schaefer & Guver), 7539 (Gomboc et al.), 7542 
(Bloom & Starr), 7544 (Malesani et al.), 7545 (Clemens et al.), 7546 
(Lee et al.), 7550 (Wang et al.).

The R-band light curve between 70s < t-t0 < 1800s clearly shows an 
initial rising with a maximum around 330s < t-t0 < 450s and a subsequent 
plateau with a possible rebrightening at 900s < t-t0 < 1100s, as noted 
in GCNs 7538 (Schaefer & Guver), 7543 (Klotz et al.) and 7552 (Kuin & Mao).

Further analysis is in progress.