About: The mechanism of the light variability of chemically peculiar stars

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

About: The mechanism of the light variability of chemically peculiar stars 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
Description	Until recently, the mechanism of the light variability of chemically peculiar (CP) stars was unclear. To improve this situation, we started a theoretical and observational campaign aimed at the nature of the light variability of these stars. We use the TLUSTY model atmospheres calculated for the appropriate surface chemical composition to obtain the emergent flux and to predict the rotationally modulated light curves. We show on example of several well-studied CP stars that their light variations can be explained as a result of i) the uneven surface distribution of the elements (creating overabundant regions), ii) the flux redistribution from the ultraviolet to the visible part of the spectrum (in the overabundant regions), and iii) rotation of the star. We show that the silicon and helium bound-free transitions and iron bound-bound transitions provide the main contribution to the flux redistribution. This result is also a very precise test of modern stellar model atmospheres. Until recently, the mechanism of the light variability of chemically peculiar (CP) stars was unclear. To improve this situation, we started a theoretical and observational campaign aimed at the nature of the light variability of these stars. We use the TLUSTY model atmospheres calculated for the appropriate surface chemical composition to obtain the emergent flux and to predict the rotationally modulated light curves. We show on example of several well-studied CP stars that their light variations can be explained as a result of i) the uneven surface distribution of the elements (creating overabundant regions), ii) the flux redistribution from the ultraviolet to the visible part of the spectrum (in the overabundant regions), and iii) rotation of the star. We show that the silicon and helium bound-free transitions and iron bound-bound transitions provide the main contribution to the flux redistribution. This result is also a very precise test of modern stellar model atmospheres. (en)
Title	The mechanism of the light variability of chemically peculiar stars The mechanism of the light variability of chemically peculiar stars (en)
skos:prefLabel	The mechanism of the light variability of chemically peculiar stars The mechanism of the light variability of chemically peculiar stars (en)
skos:notation	RIV/00216224:14310/10:00040495!RIV11-AV0-14310___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(IAA301630901)
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Skalický, Jan Zvěřina, Pavel Mikulášek, Zdeněk Krtička, Jiří
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	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	270174
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/10:00040495
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	stars: atmospheres; stars: chemically peculiar; stars: spots; stars: variables: other (en)
http://linked.open.../riv/klicoveSlovo	stars: chemically peculiar stars: spots stars: variables: other stars: atmospheres
http://linked.open...ontrolniKodProRIV	[6695FFF10656]
http://linked.open...v/mistoKonaniAkce	Rio de Janeiro
http://linked.open...i/riv/mistoVydani	Cambridge
http://linked.open...i/riv/nazevZdroje	Solar and Stellar Variability: Impact on Earth and Planets, IAUS 264
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Spectral energy distribution of hot stars and its variability
http://linked.open...UplatneniVysledku	2010
http://linked.open...iv/tvurceVysledku	Mikulášek, Zdeněk Zvěřina, Pavel Krtička, Jiří Zverko, Juraj Žižňovský, Jozef Skalický, Jan Henry, Gregory
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000280547700045
http://linked.open.../riv/zahajeniAkce	2009-01-01 (xsd:date)
number of pages	3 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Cambridge University Press
https://schema.org/isbn	978-0-521-76499-5
http://localhost/t...ganizacniJednotka	14310
is http://linked.open...avai/riv/vysledek of	The mechanism of the light variability of chemically peculiar stars The mechanism of the light variability of chemically peculiar stars The mechanism of the light variability of chemically peculiar stars

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, 112 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software