Corpus ID: 232092475

On the nature of the 35-day cycle in HZ Her/Her X-1

@inproceedings{Shakura2021OnTN,
  title={On the nature of the 35-day cycle in HZ Her/Her X-1},
  author={N. Shakura and D. Kolesnikov and K. Postnov},
  year={2021}
}
Regular variations of the pulse period of Her X-1 with X-ray flux observed by Fermi/GBM are examined. We argue that these regular variations result from free precession of the neutron star in Her X-1. Among outstanding discoveries of the 1960s, the most bright is the discovery of accreting black holes and neutron stars in close binary stars made by the Uhuru Xray satellite. Her X-1 is one of the first X-ray pulsars discovered. It is a magnetized accreting neutron star (NS) in a 1.7-day orbit… Expand

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References

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