[vsnet-grb-info 5682] GRB 071021: Faulkes Telescope South optical
limit
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Sat Mar 1 05:44:10 JST 2008
TITLE: GCN CIRCULAR
NUMBER: 7337
SUBJECT: GRB 071021: Faulkes Telescope South optical limit
DATE: 08/02/29 20:43:58 GMT
FROM: James Smith at ARI,Liverpool John Moors U <rjs at astro.livjm.ac.uk>
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R.J. Smith, D.F. Bersier, S. Kobayashi, A. Monfardini, C.G. Mundell,
I. A. Steele (Liverpool JMU), A. Gomboc (U. Ljubljana),
C. Guidorzi (U. Bicocca & INAF-OAB)
P. O'Brien, E. Rol, N. Bannister (Leicester) report:
The 2-m Faulkes Telescope South (Siding Spring) robotically followed
up GRB080229 (SWIFT trigger 304379) starting 4.6 min after the GRB
trigger time. The automatic "detection mode" procedure did not find
any afterglow. In manual inspection of later observations we do not
find any optical candidate corresponding to the XRT X-ray afterglow
(Cannizzo et al., GCN 7335) to the following limiting magnitudes.
Magnitude zero points are relative to the USNO measure of R=13.3 for
the adjacent bright star.
-----------------------------------------------
Mid Time Filter Tot.Exposure Lim. Mag.
since GRB
10.95 min R 60s 18.7
28.10 min R 180s 21.9
-----------------------------------------------
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<html><body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; =
-webkit-line-break: after-white-space; "><div style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal =
normal normal 13px/normal Courier; ">R.J. Smith, D.F. Bersier, S. =
Kobayashi, A. Monfardini, C.G. Mundell, </div><div =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; font: normal normal normal 13px/normal Courier; ">I. =
A. Steele (Liverpool JMU), A. Gomboc (U. =
Ljubljana), </div><div style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; font: normal normal normal =
13px/normal Courier; ">C. Guidorzi (U. Bicocca & INAF-OAB)</div><div =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; font: normal normal normal 13px/normal Courier; ">P. =
O'Brien, E. Rol, N. Bannister (Leicester) report:</div><div =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; font: normal normal normal 13px/normal Courier; =
min-height: 16px; "><br></div><div style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal =
normal normal 13px/normal Courier; ">The 2-m Faulkes Telescope South =
(Siding Spring) robotically followed up GRB080229 (SWIFT trigger =
304379) starting 4.6 min after the GRB trigger time. The automatic =
"detection mode" procedure did not find any afterglow. In manual =
inspection of later observations we do not find any optical candidate =
corresponding to the XRT X-ray afterglow (Cannizzo et al., GCN =
7335) to the following limiting magnitudes. Magnitude zero points are =
relative to the USNO measure of R=3D13.3 for the adjacent bright =
star.</div><div style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; font: normal normal normal =
13px/normal Courier; min-height: 16px; "><br></div><div =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; font: normal normal normal 13px/normal Courier; =
">-----------------------------------------------</div><div =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; font: normal normal normal 13px/normal Courier; ">Mid =
Time Filter Tot.Exposure Lim. =
Mag.</div><div style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; font: normal normal normal =
13px/normal Courier; ">since GRB</div><p style=3D"margin: 0.0px 0.0px =
0.0px 0.0px; font: 13.0px Courier; min-height: 16.0px"> <br =
class=3D"webkit-block-placeholder"></p><div style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal =
normal normal 13px/normal Courier; ">10.95 min =
R 60s =
18.7</div><div style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; font: normal normal normal =
13px/normal Courier; ">28.10 min R =
180s 21.9</div><div =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; font: normal normal normal 13px/normal Courier; =
">-----------------------------------------------</div><div><font =
class=3D"Apple-style-span" face=3D"Courier" size=3D"3"><span =
class=3D"Apple-style-span" style=3D"font-size: 13px;"><br =
class=3D"webkit-block-placeholder"></span></font></div>
</body></html>=
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