X-ray and Radio Variabilities of PSR J2032+4127 near Periastron

  title={X-ray and Radio Variabilities of PSR J2032+4127 near Periastron},
  author={C.-Y. Ng and Wynn C G Ho and Eric Van Gotthelf and Jules P. Halpern and Malcolm James Coe and B. W. Stappers and Andrew G. Lyne and Kent S. Wood and Matthew Kerr},
  • C.-Y. Ng, Wynn C G Ho, +6 authors Matthew Kerr
  • Published 2019
  • Physics
  • We present X-ray and radio monitoring observations of the gamma-ray binary PSR J2032+4127/MT91 213 during its periastron passage in late 2017. Dedicated Chandra, XMM-Newton, NuSTAR X-ray observations and VLA radio observations of this long orbit (50 years), 143 ms pulsar/Be star system clearly revealed flux and spectral variability during the passage. The X-ray spectrum hardened near periastron, with a significant decrease in the power-law photon index from Gamma=2 to 1.2 and evidence of an… CONTINUE READING

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