GCN Circular 2940
Subject
Fourth Epoch VLA observations of SGR 1806-20
Date
2005-01-06T21:28:18Z (22 years ago)
From
Patrick B. Cameron at Caltech <pbc@astro.caltech.edu>
P. B. Cameron (Caltech) and S. R. Kulkarni (Caltech) report:
"We observed a fourth epoch of the position of SGR 1806-20 with the Very
Large Array (VLA) in A-configuration on 2005 Jan 6.77 UT (t ~ 9.9 days
after the giant flare. See GCN #2920, #2928, #2929, #2933, #2934, #2935,
ATEL #373, #375).
We find the following preliminary flux densities:
Freq (GHz) Flux density (mJy)
--------------------------------
1.43 96 +/- 2
4.86 39 +/- 2
8.46 24 +/- 1
Error Bars are 1 sigma. We find an angular size at 8.46 GHz of about 80
mas. We see no variation in this diameter over the last 4 days.
The National Radio Astronomy Observatory is operated by Associated
Universities, Inc., under cooperative agreement with the National Science
Foundation."