J
2014
Acceleration of electric current-carrying string loop near a Schwarzschild black hole immersed in an asymptotically uniform magnetic field
KOLOŠ, Martin, Zdeněk STUCHLÍK, Arman TURSUNOV and Bobomurat AHMEDOV
Basic information
Original name
Acceleration of electric current-carrying string loop near a Schwarzschild black hole immersed in an asymptotically uniform magnetic field
Edition
Physical Review D, US - Spojené státy americké, 2014, 1550-7998
Other information
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
Keywords in English
Penrose process; flux tubes; accretion; superconductors; geodesics; capture; motion; disk
Tags
International impact, Reviewed
Links
EE2.3.20.0071, research and development project. GB14-37086G, research and development project.
V originále
We study the acceleration of an electric current-carrying and axially symmetric string loop initially oscillating in the vicinity of a Schwarzschild black hole embedded in an external asymptotically uniform magnetic field. The plane of the string loop isorthogonal to the magnetic field lines and the acceleration of the string loop occurs due to the transmutation effect turning in the deep gravitational field the internal energy of the oscillating strings to the energy of their translational motion along the axis given by the symmetry of the black hole spacetime and the magnetic field. We restrict our attention to the motion of string loop with energy high enough, when it can overcome the gravitational attraction and escape to infinity. We demonstratethat for the current-carrying string loop the transmutation effect is enhanced by the contribution of the interaction between the electric current of the string loop and the external magnetic field and we give conditions that have to be f
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