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Statements

Subject Item
n2:RIV%2F67985815%3A_____%2F14%3A00433681%21RIV15-GA0-67985815
rdf:type
n7:Vysledek skos:Concept
dcterms:description
The spectrum of the Be star HD 161306 is shown to vary periodically with a period close to 100 days. The radial velocity of the He I 6678 A emission peak varying in antiphase to the radial velocity of the Halpha emission wings component suggests that the star is a binary similar to phi Per, 59 Cyg, or FY CMa, i.e. a radiatively interacting Be binary - a rare case among Be stars. This type of object is also called a phi Per-type binary or Be + sdO binaries. The range of radial-velocity variations of the strong emission peak in the helium line observed in HD 161306 is about 180 km/s, similar to what is observed for these systems. We therefore conclude that HD 161306 may represent another case of a Be star with a hot subdwarf companion. The spectrum of the Be star HD 161306 is shown to vary periodically with a period close to 100 days. The radial velocity of the He I 6678 A emission peak varying in antiphase to the radial velocity of the Halpha emission wings component suggests that the star is a binary similar to phi Per, 59 Cyg, or FY CMa, i.e. a radiatively interacting Be binary - a rare case among Be stars. This type of object is also called a phi Per-type binary or Be + sdO binaries. The range of radial-velocity variations of the strong emission peak in the helium line observed in HD 161306 is about 180 km/s, similar to what is observed for these systems. We therefore conclude that HD 161306 may represent another case of a Be star with a hot subdwarf companion.
dcterms:title
HD 161306: a radiatively interacting Be binary? HD 161306: a radiatively interacting Be binary?
skos:prefLabel
HD 161306: a radiatively interacting Be binary? HD 161306: a radiatively interacting Be binary?
skos:notation
RIV/67985815:_____/14:00433681!RIV15-GA0-67985815
n3:aktivita
n10:P n10:I
n3:aktivity
I, P(GA14-21373S), P(GAP209/10/0715), P(LG14026)
n3:cisloPeriodika
July
n3:dodaniDat
n14:2015
n3:domaciTvurceVysledku
Kraus, Michaela n5:8202060 n5:9198725 Kubátová, Brankica n5:1220187 n5:3561585 n5:8647623 n5:2855690
n3:druhVysledku
n8:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
18822
n3:idVysledku
RIV/67985815:_____/14:00433681
n3:jazykVysledku
n4:eng
n3:klicovaSlova
binaries: spectroscopic; stars: emission-line; Be: stars
n3:klicoveSlovo
n12:stars%3A%20emission-line n12:binaries%3A%20spectroscopic n12:Be%3A%20stars
n3:kodStatuVydavatele
FR - Francouzská republika
n3:kontrolniKodProRIV
[BEA1E0C28450]
n3:nazevZdroje
Astronomy & Astrophysics
n3:obor
n17:BN
n3:pocetDomacichTvurcuVysledku
8
n3:pocetTvurcuVysledku
12
n3:projekt
n6:GA14-21373S n6:LG14026 n6:GAP209%2F10%2F0715
n3:rokUplatneniVysledku
n14:2014
n3:svazekPeriodika
567
n3:tvurceVysledku
Koubský, Pavel Niemczura, E. Škoda, Petr Šlechta, Miroslav Harmanec, P. Votruba, Viktor Kubát, Jiří Kubátová, Brankica Kotková, Lenka Yang, S. Kraus, Michaela Wolf, M.
n3:wos
000341185300144
s:issn
0004-6361
s:numberOfPages
4
n11:doi
10.1051/0004-6361/201424022