D
2023
Nodal precession model applied for twin HF QPOs observed around magnetized neutron stars
STUCHLÍK, Zdeněk and Jaroslav VRBA
Basic information
Original name
Nodal precession model applied for twin HF QPOs observed around magnetized neutron stars
Edition
Opava, Proceedings of RAGtime 23-25: Workshops on black holes and neutron stars, p. 187-198, 12 pp. 2023
Publisher
Slezská univerzita v Opavě, Fyzikální ústav v Opavě
Other information
Type of outcome
Stať ve sborníku
Field of Study
10308 Astronomy
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
Publication form
printed version "print"
RIV identification code
RIV/47813059:19630/23:A0000332
Organization unit
Institute of physics in Opava
Keywords in English
Dipole magnetic field; neutron star; observed quasi-periodic oscillations; orbiting charged matter
Tags
International impact, Reviewed
V originále
The nodal oscillations of matter orbiting compact objects such as black holes and neutron stars are usually applied for the explanation of the observed low-frequency quasiperiodic oscillations. In the present paper, we test the applicability of the nodal precession variants of the magnetically modified geodesic model based on the epicyclic motion of slightly charged matter in the magnetosphere of a neutron star represented by the Schwarzschild geometry combined with the dipole magnetic field for fitting of the twin high-frequency quasiperiodic oscillations observed around magnetized neutron stars. We demonstrate that there is a nodal precession variant giving a possibility to fit the data similarly to the standard relativistic precession variant, and we show that the other nodal variant can be clearly excluded.
Displayed: 28/12/2024 07:59