Free motion around black holes with discs or rings: between integrability and chaos - II

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10131655" target="_blank" >RIV/00216208:11320/12:10131655 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1111/j.1365-2966.2012.21630.x" target="_blank" >http://dx.doi.org/10.1111/j.1365-2966.2012.21630.x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/j.1365-2966.2012.21630.x" target="_blank" >10.1111/j.1365-2966.2012.21630.x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Free motion around black holes with discs or rings: between integrability and chaos - II

Popis výsledku v původním jazyce

We continue the study of time-like geodesic dynamics in exact static, axially and reflection symmetric spacetimes describing the fields of a Schwarzschild black hole surrounded by thin discs or rings. In the previous paper, the rise (and decline) of geodesic chaos with ring/disc mass and position and with test particle energy was revealed on Poincare sections, on time series of position or velocity and their power spectra, and on time evolution of the orbital latitudinal action. In agreement with the KAM theory of nearly integrable dynamical systems and with the results observed in similar gravitational systems in the literature, we found orbits of very different degrees of chaoticity in the phase space of perturbed fields. Here we compare selected orbits in more detail and try to classify them according to the characteristics of the corresponding phase-variable time series, mainly according to the shape of the time-series power spectra, and also applying two recurrence methods: the me

Název v anglickém jazyce

Free motion around black holes with discs or rings: between integrability and chaos - II

Popis výsledku anglicky

We continue the study of time-like geodesic dynamics in exact static, axially and reflection symmetric spacetimes describing the fields of a Schwarzschild black hole surrounded by thin discs or rings. In the previous paper, the rise (and decline) of geodesic chaos with ring/disc mass and position and with test particle energy was revealed on Poincare sections, on time series of position or velocity and their power spectra, and on time evolution of the orbital latitudinal action. In agreement with the KAM theory of nearly integrable dynamical systems and with the results observed in similar gravitational systems in the literature, we found orbits of very different degrees of chaoticity in the phase space of perturbed fields. Here we compare selected orbits in more detail and try to classify them according to the characteristics of the corresponding phase-variable time series, mainly according to the shape of the time-series power spectra, and also applying two recurrence methods: the me

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BE - Teoretická fyzika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Monthly Notices of the Royal Astronomical Society

ISSN

0035-8711

e-ISSN

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Svazek periodika

425

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

22

Strana od-do

2455-2476

Kód UT WoS článku

000308132500007

EID výsledku v databázi Scopus

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