[vsnet-grb-info 5606] GRB080207: Swift/UVOT refined analysis

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  7268
SUBJECT: GRB080207: Swift/UVOT refined analysis
DATE:    08/02/08 07:18:30 GMT
FROM:    Antonino Cucchiara at PSU  <cucchiara at astro.psu.edu>

A. Cucchiara (PSU), J. Racusin (PSU)
report on behalf of the Swift-UVOT team:

The Swift/UVOT observed the field of GRB080207 (trigger #302728)
starting 55 sec days after the BAT detection (Racusin et
al. 2008, GCN Circ. 7264). We do not find any new source in any
of the UVOT coadded observations inside the XRT enhanced error
circle (Beardmore et al. 2008, GCN Circ. 7265).

The 3-sigma upper limits (in the UVOT photometric system,
Breeveld et al., GCN Circ. 6614) are listed.

Filter     Tstart   Tstop     Exp    Upper limit  
             (s)      (s)     (s)           
white        55      11428   1167      22.40
v          4733      13063   1097      20.50
b          5553      16909    983      21.53
u          5347       6982    393      20.57
uvw1       5143       6777    393      20.75
uvm2       4937       6572    393      20.58
uvw2       5963      12334   1082      21.62

The values quoted above are not corrected for the expected Galactic
extinction corresponding to a reddening of E_{B-V} = 0.02  mag in the
direction of the burst (Schlegel et al. 1998).