About: Optical effects related to Keplerian discs orbiting Kehagias-Sfetsos naked singularities

Facets (new session)
Description
Metadata
Settings
- owl:sameAs
- Inference Rule:

About: Optical effects related to Keplerian discs orbiting Kehagias-Sfetsos naked singularities 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)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://iopscience.iop.org/0264-9381/31/19/195013/
Description	We demonstrate possible optical signatures of the Kehagias-Sfetsos (KS) naked singularity spacetimes representing a spherically symmetric vacuum solution of the modified Horava gravity. In such spacetimes, accretion structures significantly different from those present in standard black hole spacetimes occur due to the 'antigravity' effect, which causes an internal static sphere surrounded by Keplerian discs. We focus our attention on the optical effects related to the Keplerian accretion discs, constructing the optical appearance of the Keplerian discs, the spectral continuum due to their thermal radiation, and the spectral profiled lines generated in the innermost parts of such discs. The KS naked singularity signature is strongly encoded in the characteristics of predicted optical effects, especially in cases where the spectral continuum and spectral lines are profiled by the strong gravity of the spacetimes due to the vanishing region of the angular velocity gradient influencing the effectiveness of the viscosity mechanism. We can conclude that optical signatures of KS naked singularities can be well distinguished from the signatures of standard black holes. We demonstrate possible optical signatures of the Kehagias-Sfetsos (KS) naked singularity spacetimes representing a spherically symmetric vacuum solution of the modified Horava gravity. In such spacetimes, accretion structures significantly different from those present in standard black hole spacetimes occur due to the 'antigravity' effect, which causes an internal static sphere surrounded by Keplerian discs. We focus our attention on the optical effects related to the Keplerian accretion discs, constructing the optical appearance of the Keplerian discs, the spectral continuum due to their thermal radiation, and the spectral profiled lines generated in the innermost parts of such discs. The KS naked singularity signature is strongly encoded in the characteristics of predicted optical effects, especially in cases where the spectral continuum and spectral lines are profiled by the strong gravity of the spacetimes due to the vanishing region of the angular velocity gradient influencing the effectiveness of the viscosity mechanism. We can conclude that optical signatures of KS naked singularities can be well distinguished from the signatures of standard black holes. (en)
Title	Optical effects related to Keplerian discs orbiting Kehagias-Sfetsos naked singularities Optical effects related to Keplerian discs orbiting Kehagias-Sfetsos naked singularities (en)
skos:prefLabel	Optical effects related to Keplerian discs orbiting Kehagias-Sfetsos naked singularities Optical effects related to Keplerian discs orbiting Kehagias-Sfetsos naked singularities (en)
skos:notation	RIV/47813059:19240/14:#0005079!RIV15-MSM-19240___
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GB14-37086G)
http://linked.open...iv/cisloPeriodika	19
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Stuchlík, Zdeněk Schee, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
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	34728
http://linked.open...ai/riv/idVysledku	RIV/47813059:19240/14:#0005079
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Hořava gravity; optical phenomena; Keplerian disc (en)
http://linked.open.../riv/klicoveSlovo	Hořava gravity Keplerian disc optical phenomena
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[4CDF9F7C8E6C]
http://linked.open...i/riv/nazevZdroje	Classical and Quantum Gravity
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	Centrum Alberta Einsteina pro gravitaci a astrofyziku
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	31
http://linked.open...iv/tvurceVysledku	Stuchlík, Zdeněk Schee, Jan
http://linked.open...ain/vavai/riv/wos	000343411400013
issn	0264-9381
number of pages	50 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/0264-9381/31/19/195013
http://localhost/t...ganizacniJednotka	19240

Faceted Search & Find service v1.16.118 as of Jun 21 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 58 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software