String loops in the field of braneworld spherically symmetric black holes and naked singularities

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F12%3A%230004518" target="_blank" >RIV/47813059:19240/12:#0004518 - isvavai.cz</a>

Výsledek na webu

<a href="http://iopscience.iop.org/1475-7516/2012/10/008/pdf/1475-7516_2012_10_008.pdf" target="_blank" >http://iopscience.iop.org/1475-7516/2012/10/008/pdf/1475-7516_2012_10_008.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1475-7516/2012/10/008" target="_blank" >10.1088/1475-7516/2012/10/008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

String loops in the field of braneworld spherically symmetric black holes and naked singularities

Popis výsledku v původním jazyce

We study motion of current-carrying string loops in the field of braneworld spherically symmetric black holes and naked singularities. The spacetime is described by the Reissner-Nordström geometry with tidal charge b reflecting the non-local tidal effects coming from the external dimension; both positive and negative values of the spacetime parameter b are considered. We restrict attention to the axisymmetric motion of string loops when the motion can be fully governed by an appropriately defined effective potential related to the energy and angular momentum of the string loops. In dependence on these two constants of the motion, the string loops can be captured, trapped, or can escape to infinity. In close vicinity of stable equilibrium points at thecentre of trapped states the motion is regular. We describe how it is transformed to chaotic motion with growing energy of the string loop. In the field of naked singularities the trapped states located off the equatorial plane of the sys

Název v anglickém jazyce

String loops in the field of braneworld spherically symmetric black holes and naked singularities

Popis výsledku anglicky

We study motion of current-carrying string loops in the field of braneworld spherically symmetric black holes and naked singularities. The spacetime is described by the Reissner-Nordström geometry with tidal charge b reflecting the non-local tidal effects coming from the external dimension; both positive and negative values of the spacetime parameter b are considered. We restrict attention to the axisymmetric motion of string loops when the motion can be fully governed by an appropriately defined effective potential related to the energy and angular momentum of the string loops. In dependence on these two constants of the motion, the string loops can be captured, trapped, or can escape to infinity. In close vicinity of stable equilibrium points at thecentre of trapped states the motion is regular. We describe how it is transformed to chaotic motion with growing energy of the string loop. In the field of naked singularities the trapped states located off the equatorial plane of the sys

Druh

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

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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Projekt

—

Návaznosti

O - Projekt operacniho programu

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Journal of Cosmology and Astroparticle Physics

ISSN

1475-7516

e-ISSN

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Svazek periodika

—

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

31

Strana od-do

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Kód UT WoS článku

000310793700009

EID výsledku v databázi Scopus

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