GCN Circular 6052
Subject
GRB 070126: Swift/UVOT refined analysis
Date
2007-01-29T17:37:37Z (17 years ago)
From
Stefan Immler at NASA/GSFC <immler@milkyway.gsfc.nasa.gov>
S. Immler (NASA/USRA) and L. Vetere (PSU) report on the behalf
of the Swift UVOT team:
An extended source is found at the position reported by Malesani
et al. (GCN 6046) in UVOT images of GRB 070126, consistent with
the position of the XRT source (Vetere & Racusin, GCN 6045). The
source is also present in DSS images and could be the host galaxy of
the faint burst.
The table below gives the measured UVOT magnitudes. The position
of the burst is outside the UVOT field-of-view for all other filters.
Filter T_start T_end Exposure Mag Error
WHITE 123 6146 590 21.8 0.4
UVW1 3900 40895 3592 21.0 0.3
UVM2 5128 40337 3333 21.5 0.3
UVW2 4719 6214 2588 >20.4 (3-sigma UL)
T_start and T_end are the start and stop times of the summed
exposures in seconds from the trigger. No correction has been
made for the expected extinction corresponding to E(B-V) =
0.05 mag (Schlegel et al. 1998).