Stationary observers in Kerr-de Sitter spacetimes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F23%3AA0000279" target="_blank" >RIV/47813059:19630/23:A0000279 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.worldscientific.com/doi/10.1142/S0218271823500840" target="_blank" >https://www.worldscientific.com/doi/10.1142/S0218271823500840</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1142/S0218271823500840" target="_blank" >10.1142/S0218271823500840</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Stationary observers in Kerr-de Sitter spacetimes

Popis výsledku v původním jazyce

In this paper, we present a study of basic classes of stationary observers orbiting in stationary and axially symmetric Kerr-de Sitter spacetimes. Along with proper definitions of these classes, we focus on their possible matching on particular circular orbits. Especially, we determine a number of such orbits in a given spacetime characterized by its rotational and cosmological parameters that leads to a comprehensive classification of the Kerr-de Sitter spacetimes. Studied profiles of orbital velocities of the observers and of forces keeping them on their orbits directly reflect complex structure of the Kerr-de Sitter spacetimes that is caused by a unique interplay of attraction and rotation of a central object and an ambient cosmic repulsion.

Název v anglickém jazyce

Stationary observers in Kerr-de Sitter spacetimes

Popis výsledku anglicky

In this paper, we present a study of basic classes of stationary observers orbiting in stationary and axially symmetric Kerr-de Sitter spacetimes. Along with proper definitions of these classes, we focus on their possible matching on particular circular orbits. Especially, we determine a number of such orbits in a given spacetime characterized by its rotational and cosmological parameters that leads to a comprehensive classification of the Kerr-de Sitter spacetimes. Studied profiles of orbital velocities of the observers and of forces keeping them on their orbits directly reflect complex structure of the Kerr-de Sitter spacetimes that is caused by a unique interplay of attraction and rotation of a central object and an ambient cosmic repulsion.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

International Journal of Modern Physics D

ISSN

0218-2718

e-ISSN

—

Svazek periodika

32

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

SG - Singapurská republika

Počet stran výsledku

18

Strana od-do

„2350084-1“-„2350084-18“

Kód UT WoS článku

001077432500001

EID výsledku v databázi Scopus

2-s2.0-85173250623