String loop vibration around Schwarzschild black hole

Fuente: arXiv
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Autores principales: Churilova, Mariia, Kološ, Martin, Stuchlík, Zdeněk
Formato: Preprint
Publicado: 2023
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author Churilova, Mariia
Kološ, Martin
Stuchlík, Zdeněk
author_facet Churilova, Mariia
Kološ, Martin
Stuchlík, Zdeněk
contents String loop vibrations in a central plane of a Schwarzschild black hole are investigated for various string equations of state. We discuss string loop stability and derive frequencies of vibrational modes. Using the vibrating string loop model we fit the quasi-periodic oscillation (QPO) observed in X-ray signal coming from some compact sources. We demonstrate how the string-loop parameters are related to the radial and vertical fundamental vibration modes, and how the vibrational instability can be related to the Q-factor characterizing the observed QPOs.
format Preprint
id arxiv_https___arxiv_org_abs_2310_07540
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle String loop vibration around Schwarzschild black hole
Churilova, Mariia
Kološ, Martin
Stuchlík, Zdeněk
General Relativity and Quantum Cosmology
String loop vibrations in a central plane of a Schwarzschild black hole are investigated for various string equations of state. We discuss string loop stability and derive frequencies of vibrational modes. Using the vibrating string loop model we fit the quasi-periodic oscillation (QPO) observed in X-ray signal coming from some compact sources. We demonstrate how the string-loop parameters are related to the radial and vertical fundamental vibration modes, and how the vibrational instability can be related to the Q-factor characterizing the observed QPOs.
title String loop vibration around Schwarzschild black hole
topic General Relativity and Quantum Cosmology
url https://arxiv.org/abs/2310.07540