[vsnet-grb-info 5049] GRB 070810B : Faulkes Telescope South
Observations
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Mon Aug 13 03:59:43 JST 2007
TITLE: GCN CIRCULAR
NUMBER: 6758
SUBJECT: GRB 070810B : Faulkes Telescope South Observations
DATE: 07/08/12 18:59:35 GMT
FROM: Cristiano Guidorzi at INAF-OAB <cristiano.guidorzi at brera.inaf.it>
C. Guidorzi (U. Bicocca/INAF-OAB), R.J. Smith, A. Melandri,
I.A. Steele, C.G. Mundell, M.J. Burgdorf, C.J. Mottram,
M.F. Bode, S.N. Fraser, S. Kobayashi, D.F. Bersier (Liverpool JMU),
A. Gomboc (Ljubljana), P. O'Brien, E. Rol, N. Bannister, N. Tanvir
(U. Leicester) report on behalf of larger GRB collaboration:
On 2007 Aug 10 at 15:22:06 UT the 2-m Faulkes Telescope South
automatically observed the field of GRB 070810B (trigger 287409,
Marshall et al., GCN Circ. 6743).
In our coadded frames we do not detect anything corresponding to
XRT sources 1 or 2 (Starling et al., GCN Circ. 6754)
down to the limiting magnitudes reported below.
Filter Tstart(min) Tstop(min) Exposure(s) M_lim
-------------------------------------------------------
R 2.80 64.3 840 21.2
i' 6.22 54.9 520 21.5
-------------------------------------------------------
Magnitudes are calibrated with respect to USNOB1 R2 in the R filter.
For the SDSS-i' filter we calibrated with the i' magnitudes derived for
USNOB1 field stars by converting from the (R2,I) magnitudes.
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