GCN Circular 3930
Subject
GRB 050904: more VLT NIR observations
Date
2005-09-06T18:28:44Z (19 years ago)
From
Gianpiero Tagliaferri at OAB-INAF <taglia@merate.mi.astro.it>
P. D'Avanzo (INAF/OABr), L.A. Antonelli(INAF/OAR), S. Covino
(INAF/OABr), A. Grazian, V. Testa (INAF/OAR), D. Malesani (SISSA), D.
Fugazza, G. Tagliaferri (INAF/OABr), G. Chincarini (INAF/OAB & UNIMIB),
L. Stella (INAF/OAR), and A. Fernandez-Soto (Univ. Valencia) report on
behalf of the MISTICI collaboration:
We continued monitoring the afterglow (Haislip et al., GCN 3913;
D'Avanzo et al., GCN 3921) of GRB 050904 (Cummings et al., GCN 3910;
Mineo et al., GCN 3920) with the ESO VLT-UT1 (equipped with ISAAC).
Observations were performed in the J, H, and K bands, at about 50, 51
and 51.5 hours after the burst.
We still detect the afterglow in all filters. The measured magnitudes
are consistent with an unbroken decay with slope ~1 from 3 to ~50 hr
after the GRB.
We thank the ESO staff, in particular Nancy Ageorges for carefully
performing our observations and quickly providing the data.
More observations are planned.
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