GCN Circular 3469
Subject
GRB 050525: observatons of the optical afterglow
Date
2005-05-25T04:29:31Z (19 years ago)
From
Daniele Malesani at SISSA-ISAS,Trieste,Italy <malesani@sissa.it>
D. Malesani (SISSA), S. Piranomonte, F. Fiore (INAF/OARm), G.
Tagliaferri, D. Fugazza (INAF/OABr), and R. Cosentino (INAF/TNG), report
on behalf of a larger collaboration:
We imaged the field of the bright GRB 050525 (Band et al., GCN 3466;
Markwardt et al., GCN 3467) with the Italian 3.6m TNG. Observations were
performed under good observing conditions (seeing ~1.1"), even if close
to the bright Moon.
The object reported by Rykoff et al. (GCNs 3465, 3468) is clearly
detected in a single R-band image (2 min exposure) starting on 2005 Apr
25.07138 UT, 1.7 h after the GRB. Based on several nearby USNO stars,
its magnitude is R ~ 17.4. We thus confirm the fading behaviour of this
object.
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