GCN Circular 3319
Subject
GRB 050401: Rc observation
Date
2005-04-27T15:23:16Z (19 years ago)
From
Corrado Bartolini at Universita di Bologna <corrado.bartolini@unibo.it>
G. Greco, C. Bartolini, A. Guarnieri, A. Piccioni (Bologna University),
G. Pizzichini (IASF-CNR, Sezione di Bologna), S. Bernabei and S. Marinoni
(Osservatorio di Bologna) report:
"We observed the optical afterglow (Mc Naught and Price, GCN 3163) of the Swift
GRB050401 (Angelini et al. GCN 3161) with the 152-cm G. D. Cassini telescope
of Bologna University equipped with the BFOSC CCD imager.
We obtained 2x1800s Rc images on 2005 April 2.056 and April 2.092 UT.
From the first image, in good sky conditions (seeing about 2"), we find
Rc =3D 22.7 +- 0.4, using the calibration kindly provided to us by P. D'Avanzo
and N. Masetti, performed at TNG telescope.
In the second image, less deep, the object is hardly visible.
The first image of the OT is posted into a public directory from where
it can be retrieved by sftp using
hostname: ermione.bo.astro.it
username: publicGRB
password: GRB_bo
directory: GRB050401".