J
2010
On magnetic-field induced non-geodesic corrections to relativistic orbital and epicyclic frequencies
BAKALA, Pavel, Zdeněk STUCHLÍK, Eva ŠRÁMKOVÁ and Gabriel TÖRÖK
Basic information
Original name
On magnetic-field induced non-geodesic corrections to relativistic orbital and epicyclic frequencies
Edition
Classical and Quantum Gravity, GB - Spojené království Velké Británie a, 2010, 0264-9381
Other information
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 3.099
Organization unit
Faculty of Philosophy and Science in Opava
Keywords in English
Neutron stars, magnetic field, orbital motion
Tags
International impact, Reviewed
Links
GA202/09/0772, research and development project. LC06014, research and development project. MSM4781305903, plan (intention).
V originále
We discuss non-geodesic corrections to orbital and epicyclic frequencies of charged test particles orbiting a non-rotating neutron star with a dipole magnetic field. Using a fully-relativistic approach we consider influence of both the magnetic attraction and repulsion on the orbital and epicyclic motion. The magnetic repulsion introduces a rather complex and unusual behaviour of the circular orbital motion that is well defined down to the radius where the vertical epicyclic frequency looses its meaning. We demonstrate that for intensity of the magnetic interaction appropriately restricted, the stable circular orbits extend down to the magnetic innermost stable circular orbit (MISCO) that is located well under the geodetic innermost stable circular orbit (GISCO) and even can reach region under the photon circular orbit.
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