Radio observations of XTE J1739-285
ATel #604; M. P. Rupen (NRAO/GSFC), A. J. Mioduszewski, V. Dhawan (NRAO)
on 12 Sep 2005; 20:28 UT
Credential Certification: Michael P. Rupen (mrupen@nrao.edu)
Subjects: Radio, Optical, X-ray, Binary, Black Hole, Neutron Star, Transient
Very Large Array (VLA) observations of the X-ray transient XTE J1739-285
(IAUC 7300 ) during its on-going X-ray outburst (ATel #592, #602)
have detected no radio source within the Swift error circle (ATel #602), and
no variable source within the INTEGRAL or RXTE error circles (ATel #592;
IAUC 7300 ). For the Swift error circle:
| UT |
Frequency |
rms noise |
Min. |
Max. |
| 27 Aug. 2005, 04.2 hrs |
4.86 GHz |
0.097 mJy/beam |
-0.16 mJy/beam |
+0.07 mJy/beam |
| 29 Aug. 2005, 03.8 hrs |
4.86 GHz |
0.085 mJy/beam |
-0.20 mJy/beam |
+0.12 mJy/beam |
| 4 Sep. 2005, 01.4 hrs |
4.86 GHz |
0.095 mJy/beam |
-0.16 mJy/beam |
+0.19 mJy/beam |
| 4 Sep. 2005, 01.5 hrs |
8.46 GHz |
0.109 mJy/beam |
-0.16 mJy/beam |
+0.21 mJy/beam |
In this table, the rms noise is the root-mean-squared noise measured in a
source-free region near the Swift error box; the min. and max. are the
minimum and maximum flux densities observed within the Swift error box, and
are consistent with no detection. Summing up the 4.86 GHz data from all
three days gives an rms noise level of 0.053 mJy/beam, and min/max within
the Swift error circle of -0.090/+0.048 mJy/beam. A contour plot of this
image is available at
http://www.aoc.nrao.edu/~mrupen/XRT/X1739-285/x1739-285.shtml
The National Radio Astronomy Observatory is a facility of the National
Science Foundation operated under cooperative agreement by Associated
Universities, Inc.
VLA Observations of XTE J1739-285
