Chandra image of PSR J1831–0952 and X2, a point source in the field of view. The green circle is centered at the radio timing position of the pulsar, whereas the yellow circles are centered at the positions of Chandra X-ray sources (with off-axis angle of 12.2″ for the extended source, X, and 1.1′ for X2) with the highest significance in Chandra observations. The image has a pixel scale of 0.49″ and was smoothed with a Gaussian length scale of σ = 1.25″. The red square shows the position of the Chandra optical axis. Altough the X-ray counterpart of the pulsar is much closer to the optical axis, only X2 has a point-like shape, not showing a tail as the pulsar.