J 2015

Relativistic thick accretion disks: Morphology and evolutionary parameters

PUGLIESE, Daniela and Giovanni MONTANI

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

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

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
Změněno: 30/3/2021 11:48, Mgr. Pavlína Jalůvková

Abstract

V originále

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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