Abstract
We present X-ray observations of PWN G16.73+0.08/SNR G16.7+0.1 using archival data of ıt Chandra ACIS. The X-ray emission peak location of this pulsar wind nebula is found to be offset by 24 arcsec from the centre of the 1.4-GHz emission of this nebula. The X-ray nebula is elongated in the direction from the X-ray peak to the 1.4-GHz emission centre. This offset suggests that G16.73+0.08 is an evolved pulsar wind nebula interacting with the supernova remnant reverse shock. We identify a point source, CXO J182058.16-142001.5, near the location of the X-ray peak. The spectrum of the X-ray nebula can be described by an absorbed power law of photon index0.98^(+0.79)_(-0.71)and hydrogen column densityN_(\rm H)=4.99^(+2.75)_(-2.28)× 10²²cm ⁻² . CXO J182058.16-142001.5 is likely a pulsar. We estimate its spin-down power to be about2.6× 10 ³⁶erg s ⁻¹ . Assuming its age at 3000 and 10,000 years, its dipole magnetic field strength at the polar surface is estimated to be about4.2 × 10¹³G and1.3 × 10¹³G, respectively.