PUGLIESE, Daniela and Giovanni MONTANI. Relativistic thick accretion disks: Morphology and evolutionary parameters. Physical Review D. US - Spojené státy americké, 2015, vol. 91, No 8, p. "083011-1"-"083011-36", 36 pp. ISSN 1550-7998. Available from: https://dx.doi.org/10.1103/PhysRevD.91.083011.
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Basic information
Original name Relativistic thick accretion disks: Morphology and evolutionary parameters
Authors PUGLIESE, Daniela and Giovanni MONTANI.
Edition Physical Review D, US - Spojené státy americké, 2015, 1550-7998.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Confidentiality degree is not subject to a state or trade secret
WWW URL
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1103/PhysRevD.91.083011
UT WoS 000353462600001
Keywords in English thick accretion disks; rotating attractors; orbiting matter
Tags
Tags International impact, Reviewed
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 30/3/2021 11:48.
Abstract
We explore thick accretion disks around rotating attractors. We detail the configurations analyzing the fluid angular momentum and finally provide a characterization of the disk morphology and different possible topologies. Investigating the properties of orbiting disks, a classification of attractors, possibly identifiable in terms of their spin-mass ratio, is introduced; then an attempt to characterize dynamically a series of different disk topologies is discussed, showing that some of the toroidal configuration features are determined by the ratio of the angular momentum of the orbiting matter and the spin-mass ratio of the attractor. Then we focus on "multistructured" disks constituted by two or more rings of matter orbiting the same attractor, andwe prove that some structures are constrained in the dimension of rings, spacing, location, and an upper limit of ring number is provided. Finally, assuming a polytropic equation of state, we study some specific cases.
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