Asymptotic gravitational-wave fluxes from a spinning test body on generic orbits around a Kerr black hole

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F23%3A00577752" target="_blank" >RIV/67985815:_____/23:00577752 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/23:10467199

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevD.108.044041" target="_blank" >https://doi.org/10.1103/PhysRevD.108.044041</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.108.044041" target="_blank" >10.1103/PhysRevD.108.044041</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Asymptotic gravitational-wave fluxes from a spinning test body on generic orbits around a Kerr black hole

Popis výsledku v původním jazyce

This work provides gravitational-wave energy and angular momentum asymptotic fluxes from a spinning body moving on generic orbits in a Kerr spacetime up to the linear-in-spin approximation. To achieve this, we have developed a new frequency-domain Teukolsky equation solver that calculates asymptotic amplitudes from generic orbits of spinning bodies with their spin aligned with the total orbital angular momentum. However, the energy and angular momentum fluxes from these orbits in the linear-inspin approximation are appropriate for adiabatic models of extreme-mass-ratio inspirals even for spins nonaligned to the orbital angular momentum. To check the newly obtained fluxes, they are compared with already known frequency-domain results for equatorial orbits and with results from a time-domain Teukolsky equation solver called TEUKODE for off-equatorial orbits. The spinning-body framework of our work is based on the Mathisson-Papapetrou-Dixon equations under the Tulczyjew-Dixon spin supplementary condition.

Název v anglickém jazyce

Asymptotic gravitational-wave fluxes from a spinning test body on generic orbits around a Kerr black hole

Popis výsledku anglicky

This work provides gravitational-wave energy and angular momentum asymptotic fluxes from a spinning body moving on generic orbits in a Kerr spacetime up to the linear-in-spin approximation. To achieve this, we have developed a new frequency-domain Teukolsky equation solver that calculates asymptotic amplitudes from generic orbits of spinning bodies with their spin aligned with the total orbital angular momentum. However, the energy and angular momentum fluxes from these orbits in the linear-inspin approximation are appropriate for adiabatic models of extreme-mass-ratio inspirals even for spins nonaligned to the orbital angular momentum. To check the newly obtained fluxes, they are compared with already known frequency-domain results for equatorial orbits and with results from a time-domain Teukolsky equation solver called TEUKODE for off-equatorial orbits. The spinning-body framework of our work is based on the Mathisson-Papapetrou-Dixon equations under the Tulczyjew-Dixon spin supplementary condition.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/EF19_073%2F0016935" target="_blank" >EF19_073/0016935: Grantová schémata na UK</a><br>

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

Physical Review D

ISSN

2470-0010

e-ISSN

2470-0029

Svazek periodika

108

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

20

Strana od-do

044041

Kód UT WoS článku

001149059800007

EID výsledku v databázi Scopus

2-s2.0-85170702241