Proper motion, spectra, and timing of PSR J1813-1749 using Chandra and NICER.

@article{Ho2020ProperMS,
  title={Proper motion, spectra, and timing of PSR J1813-1749 using Chandra and NICER.},
  author={Wynn C. G. Ho and Sebastien Guillot and P M Saz Parkinson and Brent Limyansky and C.-Y. Ng and Michał Bejger and Crist{\'o}bal M. Espinoza and Brynmor Haskell and Gaurava K. Jaisawal and Christian Malacaria},
  journal={Monthly notices of the Royal Astronomical Society},
  year={2020},
  volume={498 3},
  pages={
          4396-4403
        }
}
PSR J1813-1749 is one of the most energetic rotation-powered pulsars known, producing a pulsar wind nebula (PWN) and gamma-ray and TeV emission, but whose spin period is only measurable in X-ray. We present analysis of two Chandra datasets that are separated by more than ten years and recent NICER data. The long baseline of the Chandra data allows us to derive a pulsar proper motion μ R.A. = - ( 0 . ″ 067 ± 0 . ″ 010 ) yr-1 and μ decl. = - ( 0 . ″ 014 ± 0 . ″ 007 ) yr-1 and velocity v ⊥ ≈ 900… 

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