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[vsnet-alert 7684] IGR J17464-3213 = XTE J17464-3213: infrared counterpart candidate



IGR J17464-3213 = XTE J17464-3213: infrared counterpart candidate

Dear Colleagues,

   The following article has been submitted to the IAUC.  The associated
images can be seen at:

  http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Xray/igrj1746.html

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IGR J17464-3213 = XTE J17464-3213

D. Baba and T. Nagata, Nagoya University, on behalf of the InfraRed 
Survey Facility (IRSF)/ Simultaneous three-color InfraRed Imager for 
Unbiased Survey (SIRIUS) team of Nagoya University and the National 
Astronomical Observatory of Japan; I. Iwata, T. Kato, Kyoto University; 
and H. Yamaoka, Kyushu University report on  near-infrared (J, H, Ks) 
imaging of the field of the x-ray transient IGR J17464-3213.  Two
distinct infrared sources exist within 2" of the radio counterpart (IAUC 
8105); the NE one is not visible on public 2MASS images, and the SW one 
has similar brightness to the source on the 2MASS image.  Given the 
proximity to the radio counterpart and the apparent absence on the 2MASS 
images, the NE source is likely the infrared counterpart of IGR 
J17464-3213.  The coordinates of NE source is R.A. = 17h 46m 15s.573, 
Decl. = -32o 14' 01".13 (equinox 2000.0; from 34 2MASS reference stars; 
rms error 0.1"), which is consistent with the radio position.
Ks magnitudes for the NE source are : April 5.97, Ks=13.9 +/- 0.2;
April 6.97, Ks=13.6 +/- 0.2.  The finding chart is available at
"http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Xray/j17464sirius.gif";.


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