7–12 Jul 2024
Aurum, the ‘Gabriele d’Annunzio’ University and ICRANet
Europe/Rome timezone

Vibrating ring around black hole

12 Jul 2024, 17:00
30m
Aula 35 ( ‘Gabriele d’Annunzio’ University)

Aula 35

‘Gabriele d’Annunzio’ University

Viale Pindaro, 42, Pescara
Talk in a parallel session Spectral and temporal properties of accretion flows and jets around compact objects and the theoretical models Spectral and temporal properties of accretion flows and jets around compact objects and the theoretical models

Speaker

Martin Kološ (Institute of Physics, Silesian University in Opava)

Description

A thin circular structure vibrating in the central plane of a black hole will be investigated. This circular ring (string loop) can be considered a simplified model for thin magnetic flux tubes (in plasma physics), and connections to accreting fluid structures around the black hole will be demonstrated. The stability of the string loop and the frequencies of its vibrational modes will be provided and compared with the vibrational modes of thick toroidal fluid structure around black holes, which is the standard analytical model for the temporal properties of accretion flow.

Primary author

Martin Kološ (Institute of Physics, Silesian University in Opava)

Presentation materials