Evidence for neutron star triaxial free precession in Her X-1 from Fermi/GBM pulse period measurements
Her X-1/HZ Her is one of the best studied accreting X-ray pulsars. In addition to the pulsating and orbital periods, the X-ray and optical light curves of the source exhibit an almost periodic 35-d variability caused by a precessing accretion disc. The nature of the observed long-term stability of t...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Oxford University Press
2022
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| Subjects: | |
| Online Access: | View Fulltext in Publisher |