Oblique magnetic fields and the role of frame dragging near a rotating black hole

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F14%3A00438297" target="_blank" >RIV/67985815:_____/14:00438297 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.14311/AP.2014.54.0398" target="_blank" >http://dx.doi.org/10.14311/AP.2014.54.0398</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/AP.2014.54.0398" target="_blank" >10.14311/AP.2014.54.0398</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Oblique magnetic fields and the role of frame dragging near a rotating black hole

Popis výsledku v původním jazyce

Magnetic null points can develop near the ergosphere boundary of a rotating black hole due to the combined effects of a strong gravitational field and the frame-dragging mechanism. The induced electric component does not vanish, and an efficient processof particle acceleration can occur. Furthermore, the effect of the imposed (weak) magnetic field can trigger the onset of chaos. The model set-up appears to be relevant for low-accretion-rate nuclei of some galaxies which exhibit episodic accretion events (such as the Milky Way?s supermassive black hole) embedded in a large-scale magnetic field of external origin. We review our recent results and we give additional context for future work focused on the role of gravito-magnetic effects caused by the rotation of the black hole. While the test motion is strictly regular in the classical black hole space-time, with and without the effects of rotation or an electric charge, gravitational perturbations and imposed external electromagnetic fi

Název v anglickém jazyce

Oblique magnetic fields and the role of frame dragging near a rotating black hole

Popis výsledku anglicky

Magnetic null points can develop near the ergosphere boundary of a rotating black hole due to the combined effects of a strong gravitational field and the frame-dragging mechanism. The induced electric component does not vanish, and an efficient processof particle acceleration can occur. Furthermore, the effect of the imposed (weak) magnetic field can trigger the onset of chaos. The model set-up appears to be relevant for low-accretion-rate nuclei of some galaxies which exhibit episodic accretion events (such as the Milky Way?s supermassive black hole) embedded in a large-scale magnetic field of external origin. We review our recent results and we give additional context for future work focused on the role of gravito-magnetic effects caused by the rotation of the black hole. While the test motion is strictly regular in the classical black hole space-time, with and without the effects of rotation or an electric charge, gravitational perturbations and imposed external electromagnetic fi

Druh

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

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

—

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Acta polytechnica

ISSN

1210-2709

e-ISSN

—

Svazek periodika

54

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

16

Strana od-do

398-413

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—