[AAVSO-HEN] GRB 070509: REM observations

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TITLE:   GCN CIRCULAR
NUMBER:  6395
SUBJECT: GRB 070509: REM observations
DATE:    07/05/09 04:02:46 GMT
FROM:    Stefano Covino at Brera Astronomical Observatory  <stefano.covino at gmail.com>

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

We observed the field of the GRB 070509 (Vetere et al., GCN 6394)  
with the robotic 60-cm REM telescope located at La Silla (Chile). A  
set of observations was performed automatically in the optical and  
near infrared filters (V, R, I and J, H, K, z) starting at 02:56:52  
UT (33 sec after the Swift alert; more than 8 minutes after the burst).

Preliminary analysis does not show any source down to the 2MASS limit  
in the XRT error circle (Vetere et al., GCN 6394).

Further analyses are in progress.

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