About: Accretion processes in black-hole spacetimes with a repulsive cosmological constant.

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About: Accretion processes in black-hole spacetimes with a repulsive cosmological constant. Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The influence of a repulsive cosmological constant on accretion processes onto black holes is discussed. The steady, spherically symetric adiabatic inflow and outflow of perfect fluid is considered. Further, the attention is focused on the properties of both geometrically thin, Keplerian accretion disks and geometrically thick, toroidal disks having relevant pressure gradients. It is shown that nearby the static radius, where the gravitational attraction of a black hole is just balanced by the cosmological repulsion, the accretion toroidal disks have an outer cusp enabling outflow of matter from the disk. Behind the static radius the cosmological repulsion efficiently collimates jets that emanate along the rotation axis of the toroidal disk. The influence of a repulsive cosmological constant on accretion processes onto black holes is discussed. The steady, spherically symetric adiabatic inflow and outflow of perfect fluid is considered. Further, the attention is focused on the properties of both geometrically thin, Keplerian accretion disks and geometrically thick, toroidal disks having relevant pressure gradients. It is shown that nearby the static radius, where the gravitational attraction of a black hole is just balanced by the cosmological repulsion, the accretion toroidal disks have an outer cusp enabling outflow of matter from the disk. Behind the static radius the cosmological repulsion efficiently collimates jets that emanate along the rotation axis of the toroidal disk. (en)
Title	Accretion processes in black-hole spacetimes with a repulsive cosmological constant. Accretion processes in black-hole spacetimes with a repulsive cosmological constant. (en)
skos:prefLabel	Accretion processes in black-hole spacetimes with a repulsive cosmological constant. Accretion processes in black-hole spacetimes with a repulsive cosmological constant. (en)
skos:notation	RIV/47813059:19240/01:20000005!RIV/2002/GA0/192402/N
http://linked.open.../vavai/riv/strany	129;16
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA202/99/0261)
http://linked.open...vai/riv/dodaniDat	2002
http://linked.open...aciTvurceVysledku	Stuchlík, Zdeněk
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Slezská univerzita v Opavě / Filozoficko-přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	672445
http://linked.open...ai/riv/idVysledku	RIV/47813059:19240/01:20000005
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Accretion processes; black holes; repulsive cosmological consta (en)
http://linked.open.../riv/klicoveSlovo	black holes Accretion processes repulsive cosmological consta
http://linked.open...ontrolniKodProRIV	[5D51F5A8B421]
http://linked.open...v/mistoKonaniAkce	Opava, Czech republic
http://linked.open...i/riv/mistoVydani	Opava
http://linked.open...i/riv/nazevZdroje	Proceedings of RAGtime 2/3: Workshops on black holes and neutron stars
http://linked.open...in/vavai/riv/obor	BE
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Relativistic physics and astrophysics
http://linked.open...UplatneniVysledku	2001
http://linked.open...iv/tvurceVysledku	Stuchlík, Zdeněk
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2001-11-08 (xsd:date)
number of pages	38 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Slezská univerzita v Opavě
https://schema.org/isbn	80-7248-131-2
http://localhost/t...ganizacniJednotka	19240

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