Dynamics of current-carrying string loops in the Kerr naked-singularity and black-hole spacetimes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F13%3A%230004619" target="_blank" >RIV/47813059:19240/13:#0004619 - isvavai.cz</a>

Result on the web

<a href="http://journals.aps.org/prd/abstract/10.1103/PhysRevD.88.065004" target="_blank" >http://journals.aps.org/prd/abstract/10.1103/PhysRevD.88.065004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.88.065004" target="_blank" >10.1103/PhysRevD.88.065004</a>

Result language

angličtina

Original language name

Dynamics of current-carrying string loops in the Kerr naked-singularity and black-hole spacetimes

Original language description

Current-carrying string-loop dynamics is studied in the Kerr spacetimes. With attention concentrated to the axisymmetric motion of string loops around the symmetry axis of both black-hole (BH) and naked singularity (NS) spacetimes, it is shown that the resulting motion is governed by the presence of an outer tension barrier and an inner angular momentum barrier that are influenced by the BH or NS spin. We classify the string dynamics according to properties of the energy boundary function (effective potential) for the string loop motion. We have found that for NS there exist new types of energy boundary function, namely those with off-equatorial minima. Conversion of the energy of the string oscillations to the energy of the linear translational motionhas been studied. Such a transmutation effect is much more efficient in the NS spacetimes because of lack of the event horizon. For BH spacetimes efficiency of the transmutation effect is only weakly spin dependent. Transition from the r

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

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Project

<a href="/en/project/GA202%2F09%2F0772" target="_blank" >GA202/09/0772: Current problems of gravitation, general relativity and relativistic astrophysics</a><br>

Continuities

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

Publication year

2013

Confidentiality

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

Name of the periodical

PHYSICAL REVIEW D

ISSN

1550-7998

e-ISSN

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Volume of the periodical

88

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

25

Pages from-to

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UT code for WoS article

000323894000020

EID of the result in the Scopus database

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