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Left: PANIC Ks-band image
around IGR J17497-2821 obtained on 2006 Sep 21 UT when the source was
in outburst. North is up. East is to the
left. The data were obtained with a seeing of 0.75'' and a
projected pixel size of 0.127''. The error circles for the Swift and Chandra positions (ATel 900 and 907) are
overplotted as green and red circles respectively. Two sources
are visible inside the Chandra
error circle. The closest to the Chandra
position has
Ks~15.9. For the sake of clarity we label from 1 to 6 the near-infrared
sources reported in ATel 906 as
candidates 1 to 6. Brighter sources within the Swift error circle are
2MASS field stars reported in ATel 897. Right: PANIC Ks-band image obtained
on 2007 Feb 10 UT. The Chandra positions
is
overplotted. The NIR counterpart to IGR J17497-2821 has faded
below detection (Ks > 17.8).
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