About: Dynamical evolution of dense star clusters in galactic nuclei

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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	By means of direct numerical N-body modeling, we investigate the orbital evolution of an initially thin, central mass dominated stellar disk. We include the perturbative gravitational influence of an extended spherically symmetric star cluster and the mutual gravitational interaction of the stars within the disk. Our results show that the two-body relaxation of the disk leads to significant changes of its radial density profile. In particular, the disk naturally evolves, for a variety of initial configurations, a similar broken power-law surface density profile. Hence, it appears that the single power-law surface density profile PROPORTIONAL TOR -2 suggested by various authors to describe the young stellar disk observed in the Sgr A* region does not match theoretical expectations. By means of direct numerical N-body modeling, we investigate the orbital evolution of an initially thin, central mass dominated stellar disk. We include the perturbative gravitational influence of an extended spherically symmetric star cluster and the mutual gravitational interaction of the stars within the disk. Our results show that the two-body relaxation of the disk leads to significant changes of its radial density profile. In particular, the disk naturally evolves, for a variety of initial configurations, a similar broken power-law surface density profile. Hence, it appears that the single power-law surface density profile PROPORTIONAL TOR -2 suggested by various authors to describe the young stellar disk observed in the Sgr A* region does not match theoretical expectations. (en)
Title	Dynamical evolution of dense star clusters in galactic nuclei Dynamical evolution of dense star clusters in galactic nuclei (en)
skos:prefLabel	Dynamical evolution of dense star clusters in galactic nuclei Dynamical evolution of dense star clusters in galactic nuclei (en)
skos:notation	RIV/00216208:11320/14:10287739!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(LD12065)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Šubr, Ladislav Haas, Jaroslav
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	12693
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10287739
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Galaxy: nucleus; stellar dynamics; methods: n-body simulations (en)
http://linked.open.../riv/klicoveSlovo	Galaxy: nucleus stellar dynamics methods: n-body simulations
http://linked.open...ontrolniKodProRIV	[904F587664BA]
http://linked.open...v/mistoKonaniAkce	Santa Fe, NM, USA
http://linked.open...i/riv/mistoVydani	Cambridge, UK
http://linked.open...i/riv/nazevZdroje	The Galactic Center: Feeding and Feedback in a Normal Galactic Nucleus
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Black holes and their environment
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Šubr, Ladislav Haas, Jaroslav
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2013-09-30 (xsd:date)
issn	1743-9213
number of pages	3 (xsd:int)
http://bibframe.org/vocab/doi	10.1017/S1743921314000647
http://purl.org/ne...btex#hasPublisher	Cambridge University Press
https://schema.org/isbn	978-1-107-04461-6
http://localhost/t...ganizacniJednotka	11320

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