[vsnet-grb-info 15267] GRB 140709A : Virtual Telescope optical observations
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Thu Jul 10 08:35:34 JST 2014
TITLE: GCN CIRCULAR
NUMBER: 16559
SUBJECT: GRB 140709A : Virtual Telescope optical observations
DATE: 14/07/09 23:35:27 GMT
FROM: Gianluca Masi at Bellatrix Astronomical Obs <gianluca at bellatrixobservatory.org>
G. Masi, the Virtual Telescope Project - Italy, reports:
I started observations of GRB 140709A (Hagen et al. GCN 16546) with the 17"
robotic unit part of the Virtual Telescope (Ceccano, Italy) at 02:04:00 UT, 3000
seconds after the burst.
An optical source is visible where described by Castro-Tirado et al. (GCN 16554)
in a image coming from the sum of three, 180-seconds exposures, unfiltered. The
position of the source is RA: 20h18m38.94s +51d13'29.9" (J2000.0, mean residuals
of 0.2") and the magnitude was estimated to be 21.0, assuming R mags for the
reference stars from UCAC-4.
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