Axially symmetric steady-state flows in the vicinity of a Kerr black hole and the nature of the activity of galactic nuclei

A generalization of the force-free equation describing steady-state axially symmetric flows in the vicinity of a Kerr black hole is carried out to the case of ideal magnetohydrodynamics. It is shown how this equation changes from an elliptic to a hyperbolic type in the vicinity of the horizon. The limits of applicability of the approach under discussion are examined for different astrophysical sources. It is shown that a high photon density strongly restricts the limits of applicability of the MHD approach.

PACS: 98.62.Js, 95.30.Qd, 96.60.Vg, 98.54.Cm, 98.54.Aj (all)
DOI: 10.1070/PU1993v036n06ABEH002165
URL: https://ufn.ru/en/articles/1993/6/d/
Citation: Beskin V S, Par’ev V I "Axially symmetric steady-state flows in the vicinity of a Kerr black hole and the nature of the activity of galactic nuclei" Phys. Usp. 36 (6) 529–539 (1993)

BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks

Оригинал: Бескин В С, Парьев В И «Осесимметричные стационарные течения в окрестности керровской черной дыры и природа активности галактических ядер» УФН 163 (6) 95–106 (1993); DOI: 10.3367/UFNr.0163.199306d.0095

References (59) Cited by (35) Similar articles (15) ↓

V.S. Beskin, T.I. Khalilov “On the problem of boundary conditions for mixed type equations arising in the description of astrophysical transonic flows” Phys. Usp. 66 741–746 (2023)
D.A. Kirzhnits, S.N. Yudin “Paradoxes of superfluid rotation” Phys. Usp. 38 1283–1288 (1995)
N.I. Shakura, K.A. Postnov et al “Magnetorotational instability in Keplerian disks: a nonlocal approach” Phys. Usp. 66 1262–1276 (2023)
A.A. Shatskiy, I.D. Novikov, N.S. Kardashev “The Kepler problem and collisions of negative masses” Phys. Usp. 54 381–385 (2011)
P.B. Ivanov “On relativistic motion of a pair of particles having opposite signs of masses” Phys. Usp. 55 1232–1238 (2012)
V.S. Beskin, A.A. Zheltoukhov “On the anomalous torque applied to a rotating magnetized sphere in a vacuum” Phys. Usp. 57 799–806 (2014)
V.L. Kraĭnov, L.P. Presnyakov “Phase functions for potential scattering in optics” Phys. Usp. 36 (7) 621–627 (1993)
V.I. Klyatskin “Statistical description of the diffusion of a passive tracer in a random velocity field” Phys. Usp. 37 501–513 (1994)
L.I. Men’shikov, A.N. Pinzul “The Hawking effect in the sudden gravitational collapse model” Phys. Usp. 38 1031–1036 (1995)
V.L. Ginzburg, L.P. Pitaevskii “Quantum Nyquist formula and the applicability ranges of the Callen-Welton formula” Sov. Phys. Usp. 30 168–171 (1987)
V.V. Shevchenko “Forward and backward waves: three definitions and their interrelation and applicability” Phys. Usp. 50 287–292 (2007)
A.A. Grib, Yu.V. Pavlov “Is it possible to see the infinite future of the Universe when falling into a black hole?” Phys. Usp. 52 257–261 (2009)
S.N. Semenov, M.E. Schimpf “Mass transport thermodynamics in nonisothermal molecular liquid mixtures” Phys. Usp. 52 1045–1054 (2009)
I.P. Bazarov “Paradoxes of gas mixing” Sov. Phys. Usp. 19 271–273 (1976)
R.Z. Muratov “Some useful correspondences in classical magnetostatics, and the multipole representations of the magnetic potential of an ellipsoid” Phys. Usp. 55 919–928 (2012)

The list is formed automatically.