KFU. Card publication. Modelling of 35-d superorbital cycle of B and V light curves of IMXB HZ Her/Her X-1

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MODELLING OF 35-D SUPERORBITAL CYCLE OF B AND V LIGHT CURVES OF IMXB HZ HER/HER X-1

Form of presentation

Articles in international journals and collections

Year of publication

2020

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Authors, employees of KFU

Bikmaev Ilfan Fyaritovich, author

Bibliographic description in the original language

Kolesnikov D. A., Shakura N, I, Modelling of 35-d superorbital cycle of B and V light curves of IMXB HZ Her/Her X-1//MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. - 2020. - Vol.499, Is.2. - P.1747-1757.

Annotation

The X-ray binary Her X-1 consists of an accreting neutron star and the optical component HZ Her. The 35-d X-ray superorbital variability of this system is known, since its discovery in 1972 by the Uhuru satellite and is believed to be caused by forced precession of a warped accretion disc tilted to the orbital plane. We argue that the observed features of the 35-d optical variability of HZ Her can be explained by free precession of the neutron star with a period close to that of the forced disc. The model parameters include (a) the X-ray luminosity of the neutron star; (b) the optical flux from the accretion disc; and (c) the tilt of the inner and outer edges of the accretion disc. A possible synchronization mechanism based on the coupling between the neutron star free precession and the dynamical action of non-stationary gas streams is discussed.

Keywords

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The name of the journal

Monthly Notices of the Royal Astronomical Society

URL

https://academic.oup.com/mnras/article-abstract/499/2/1747/5921222?redirectedFrom=PDF

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=244722&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Bikmaev Ilfan Fyaritovich	ru_RU
dc.date.accessioned	2020-01-01T00:00:00Z	ru_RU
dc.date.available	2020-01-01T00:00:00Z	ru_RU
dc.date.issued	2020	ru_RU
dc.identifier.citation	Kolesnikov D. A., Shakura N, I, Modelling of 35-d superorbital cycle of B and V light curves of IMXB HZ Her/Her X-1//MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. - 2020. - Vol.499, Is.2. - P.1747-1757.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=244722&p_lang=2	ru_RU
dc.description.abstract	Monthly Notices of the Royal Astronomical Society	ru_RU
dc.description.abstract	The X-ray binary Her X-1 consists of an accreting neutron star and the optical component HZ Her. The 35-d X-ray superorbital variability of this system is known, since its discovery in 1972 by the Uhuru satellite and is believed to be caused by forced precession of a warped accretion disc tilted to the orbital plane. We argue that the observed features of the 35-d optical variability of HZ Her can be explained by free precession of the neutron star with a period close to that of the forced disc. The model parameters include (a) the X-ray luminosity of the neutron star; (b) the optical flux from the accretion disc; and (c) the tilt of the inner and outer edges of the accretion disc. A possible synchronization mechanism based on the coupling between the neutron star free precession and the dynamical action of non-stationary gas streams is discussed.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	��	ru_RU
dc.subject	��	ru_RU
dc.subject	��	ru_RU
dc.title	Modelling of 35-d superorbital cycle of B and V light curves of IMXB HZ Her/Her X-1	ru_RU
dc.type	Articles in international journals and collections	ru_RU