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26 April 2024 |
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Article overview
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Inversion of the decay of the cyclotron line energy in Her X-1 | | R. Staubert
; D. Klochkov
; F. Fürst
; J. Wilms
; R.E. Rothschild
; F. Harrison
; | | Date: |
14 Oct 2017 | | Abstract: | Recent observations of Her X-1 with NuSTAR and INTEGRAL in 2016 have provided
evidence that the 20-year decay of the cyclotron line energy found between 1996
and 2015 has ended and that an inversion with a new increase, possibly similar
to the one observed around 1990-1993, has started. We consider this a strong
motivation for further observations and for enhanced efforts to significantly
improve our theoretical understanding of the accretion process in binary X-ray
pulsars. We speculate about the physics behind the long-term decay and its
inversion, a possible cyclic behavior, and correlations with other variable
observables. | | Source: | arXiv, 1710.5150 | | Services: | Forum | Review | PDF | Favorites | |
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