J 2011

Role of electric charge in shaping equilibrium configurations of fluid tori encircling black holes

KOVÁŘ, Jiří, Petr SLANÝ and Zdeněk STUCHLÍK

Basic information

Original name

Role of electric charge in shaping equilibrium configurations of fluid tori encircling black holes

Authors

KOVÁŘ, Jiří, Petr SLANÝ and Zdeněk STUCHLÍK

Edition

Physical Review D, US - Spojené státy americké, 2011, 1550-7998

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Confidentiality degree

není předmětem státního či obchodního tajemství

Organization unit

Faculty of Philosophy and Science in Opava

DOI

http://dx.doi.org/10.1103/PhysRevD.84.084002

UT WoS

000296524300003

Keywords in English

Toroidal magnetic-field, compact object, thick discs, cosmological constant, magnetofluid

Tags

UF

Tags

International impact, Reviewed

Links

LC06014, research and development project. MSM4781305903, plan (intention).
Změněno: 13/1/2021 11:04, Mgr. Pavlína Jalůvková

Abstract

V originále

Astrophysical fluids may acquire nonzero electrical charge because of strong irradiation or charge separation in a magnetic field. In this case, electromagnetic and gravitational forces may act together and produce new equilibrium configurations, which are different from the uncharged ones. Following our previous studies of charged test particles and uncharged perfect fluid tori encircling compact objects, we introduce here a simple test model of a charged perfect fluid torus in strong gravitational andelectromagnetic fields. In contrast to ideal magnetohydrodynamic models, we consider here the opposite limit of negligible conductivity, where the charges are tied completely to the moving matter. This is an extreme limiting case which can provide a useful reference against which to compare subsequent more complicated astrophysically motivated calculations. To clearly demonstrate the features of our model, we construct three-dimensional axisymmetric charged toroidal configurations aroun
Displayed: 25/12/2024 08:15