[vsnet-grb-info 5994] GRB 080319A : Liverpool and Faulkes Telescopes
Observations
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Tue Apr 22 02:34:22 JST 2008
TITLE: GCN CIRCULAR
NUMBER: 7636
SUBJECT: GRB 080319A : Liverpool and Faulkes Telescopes Observations
DATE: 08/04/21 17:34:09 GMT
FROM: Andrea Melandri at Liverpool John Moores U <axm at astro.livjm.ac.uk>
A. Melandri (Liverpool JMU), A. Gomboc (Ljubljana), C. Guidorzi
(INAF-OAB), R.J. Smith, I.A. Steele, C.G. Mundell, D.F. Bersier,
M.F. Bode, M.J. Burgdorf, S. Kobayashi, C.J. Mottram (Liverpool JMU),
P. O'Brien, N. Bannister, N. Tanvir (U. Leicester) report on behalf of
larger GRB collaboration:
We observed the field of GRB 080319A (trigger = 306754, Pagani et al.
GCN 7426) with the Liverpool Telescope (T_start = 32 min after the burst
event) and the Faulkes Telescope North (T_start = 525 min after the burst
event).
The optical counterpart reported by Cenko et al. (GCN 7429) and Malesani
et al. (GCN 7436), is clearly visible inside the XRT error circle
(Beardmore et al., GCN 7448) in our first images :
Telescope Filter DT_mean(min) Exposure(s) Mag Err
----------------------------------------------------------------------
LT r' 34.2 360 21.45 0.16
LT r' 43.3 600 21.94 0.40
FTN r' 542.3 1000 >20.61
----------------------------------------------------------------------
Magnitudes were calibrated with respect to SDSS calibration's field (Cool
et al. GCN 7467).
More information about the vsnet-grb-info
mailing list