k 2023

Nodal precession model applied for twin HF QPOs observed around magnetized black holes

VRBA, Jaroslav and Zdeněk STUCHLÍK

Basic information

Original name

Nodal precession model applied for twin HF QPOs observed around magnetized black holes

Edition

RAGtime 23-25: Workshops on black holes and neutron stars, 2023

Other information

Language

English

Type of outcome

Prezentace na konferencích

Field of Study

10308 Astronomy

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Organization unit

Institute of physics in Opava
Změněno: 14/5/2024 14:30, Mgr. Pavlína Jalůvková

Abstract

V originále

The nodal oscillations of matter orbiting compact objects as black holes and neutron stars are usually applied for explanation of the observed low-frequency quasiperiodic oscillations. In the present paper we test applicability of the nodal precession variants of the magnetically modified geodesic model, based on the epicyclic motion of slightly charged matter in magnetosphere of a neutron star represented by a 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 possibility to fit the data similarly to the standard relativistic precession variant, and we show that the other nodal variant can be clearly excluded.