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Statements

Subject Item
n2:RIV%2F00216224%3A14310%2F07%3A00020414%21RIV10-MSM-14310___
rdf:type
n15:Vysledek skos:Concept
dcterms:description
We simulate light curves of the helium strong chemically peculiar star HD 37776 assuming that the observed periodic light variations originate as a result of inhomogeneous horizontal distribution of chemical elements on the surface of a rotating star. We show that chemical peculiarity influences the monochromatic radiative flux, mainly due to bound-free processes. Using the model of the distribution of silicon and helium on HD 37776 surface, derived from spectroscopy, we calculate a photometric map of the surface and consequently the uvby light curves of this star. Basically, the predicted light curves agree in shape and amplitude with the observed ones. We conclude that the basic properties of variability of this helium strong chemically peculiar star can be understood in terms of the model of spots with peculiar chemical composition. We simulate light curves of the helium strong chemically peculiar star HD 37776 assuming that the observed periodic light variations originate as a result of inhomogeneous horizontal distribution of chemical elements on the surface of a rotating star. We show that chemical peculiarity influences the monochromatic radiative flux, mainly due to bound-free processes. Using the model of the distribution of silicon and helium on HD 37776 surface, derived from spectroscopy, we calculate a photometric map of the surface and consequently the uvby light curves of this star. Basically, the predicted light curves agree in shape and amplitude with the observed ones. We conclude that the basic properties of variability of this helium strong chemically peculiar star can be understood in terms of the model of spots with peculiar chemical composition.
dcterms:title
The light variability of the helium strong star HD 37776 as a result of its inhomogeneous elemental surface distribution The light variability of the helium strong star HD 37776 as a result of its inhomogeneous elemental surface distribution
skos:prefLabel
The light variability of the helium strong star HD 37776 as a result of its inhomogeneous elemental surface distribution The light variability of the helium strong star HD 37776 as a result of its inhomogeneous elemental surface distribution
skos:notation
RIV/00216224:14310/07:00020414!RIV10-MSM-14310___
n3:aktivita
n12:P
n3:aktivity
P(GA205/06/0217), P(ME 128)
n3:cisloPeriodika
470
n3:dodaniDat
n14:2010
n3:domaciTvurceVysledku
n16:4156722 n16:4066790
n3:druhVysledku
n13:J
n3:duvernostUdaju
n4:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
431063
n3:idVysledku
RIV/00216224:14310/07:00020414
n3:jazykVysledku
n17:eng
n3:klicovaSlova
stars: chemically peculiar -- stars: early-type -- stars: variables: general -- stars: atmospheres
n3:klicoveSlovo
n5:stars%3A%20chemically%20peculiar%20--%20stars%3A%20early-type%20--%20stars%3A%20variables%3A%20general%20--%20stars%3A%20atmospheres
n3:kodStatuVydavatele
FR - Francouzská republika
n3:kontrolniKodProRIV
[A6F53F4C9A24]
n3:nazevZdroje
Astronomy and Astrophysics
n3:obor
n18:BN
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
4
n3:projekt
n9:ME%20128 n9:GA205%2F06%2F0217
n3:rokUplatneniVysledku
n14:2007
n3:svazekPeriodika
39
n3:tvurceVysledku
Mikulášek, Zdeněk Žižňovský, Jozef Krtička, Jiří Zverko, Juraj
n3:wos
000248190700031
s:issn
0004-6361
s:numberOfPages
12
n6:organizacniJednotka
14310