BAKALA, Pavel, Zdeněk STUCHLÍK, Eva ŠRÁMKOVÁ and TOROK. Dipole magnetic field on a Schwarzschild background and related epicyclic frequencies. In Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars. Opava: Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky, 2007, p. 1-10. ISBN 978-80-7248-419-5.
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Basic information
Original name Dipole magnetic field on a Schwarzschild background and related epicyclic frequencies
Authors BAKALA, Pavel, Zdeněk STUCHLÍK, Eva ŠRÁMKOVÁ and TOROK.
Edition Opava, Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars, p. 1-10, 10 pp. 2007.
Publisher Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10308 Astronomy
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
Organization unit Faculty of Philosophy and Science in Opava
ISBN 978-80-7248-419-5
Keywords in English X-ray, neutron stars, binaries, accretion discs, QPOs, magnetic field
Tags , LC06014, MSM4781305903, RAGtime, sbornik
Tags International impact
Links LC06014, research and development project. MSM4781305903, plan (intention).
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 7/12/2020 10:26.
Abstract
Several models of the X-ray ux modulation observed in the low-mass X-ray binaries (LMXBs), in particular the neutron star LMXBs, deal with Keplerian and epicyclic frequencies of geodesic orbital motion. We discuss non-geodesic corrections to the orbitaland epicyclic frequencies of charged test particles caused by presence of a neutron star magnetic field. The magnetic field is considered to be generated by an intrinsic static dipole magnetic moment of a neutron star represented by the Schwarzschild geometry. We present fully general relativistic formulae for the orbital and epicyclic frequencies, obtained using the appropriate equations governing perturbations of the circular motion. The most significant correction arises for the radial epicyclic frequency. The zero point of the corrected radial epicyclic frequency defines radius of the effective innermost stable circular orbit (EISCO)."
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