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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 ------------------------------------------------------------------------- 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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