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Statements

Subject Item
n2:RIV%2F67985815%3A_____%2F10%3A00354857%21RIV11-GA0-67985815
rdf:type
n14:Vysledek skos:Concept
dcterms:description
We studied both components of a slightly overlooked visual binary HR 1847 spectroscopically to determine its basic physical and orbital parameters. Basic stellar parameters were determined by comparing synthetic spectra to the observed echelle spectra, which cover both the optical and near-IR regions. New observations of this system used the Ondrejov and Rozhen 2-m telescopes and their coude spectrographs. Radial velocities from individual spectra were measured and then analysed with the code FOTEL to determine orbital parameters. The spectroscopic orbit of HR 1847A is presented for the first time. It is a single-lined spectroscopic binary with a B-type primary, a period of 719.79 days, and a highly eccentric orbit with e = 0.7. We confirmed that HR 1847B is a Be star. Its Ha emission significantly decreased from 2003 to 2008. Both components have a spectral type B7-8 and luminosity class IV-V. We studied both components of a slightly overlooked visual binary HR 1847 spectroscopically to determine its basic physical and orbital parameters. Basic stellar parameters were determined by comparing synthetic spectra to the observed echelle spectra, which cover both the optical and near-IR regions. New observations of this system used the Ondrejov and Rozhen 2-m telescopes and their coude spectrographs. Radial velocities from individual spectra were measured and then analysed with the code FOTEL to determine orbital parameters. The spectroscopic orbit of HR 1847A is presented for the first time. It is a single-lined spectroscopic binary with a B-type primary, a period of 719.79 days, and a highly eccentric orbit with e = 0.7. We confirmed that HR 1847B is a Be star. Its Ha emission significantly decreased from 2003 to 2008. Both components have a spectral type B7-8 and luminosity class IV-V.
dcterms:title
Spectroscopic analysis of the B/Be visual binary HR 1847 Spectroscopic analysis of the B/Be visual binary HR 1847
skos:prefLabel
Spectroscopic analysis of the B/Be visual binary HR 1847 Spectroscopic analysis of the B/Be visual binary HR 1847
skos:notation
RIV/67985815:_____/10:00354857!RIV11-GA0-67985815
n3:aktivita
n4:P n4:Z
n3:aktivity
P(GA205/08/0003), Z(AV0Z10030501)
n3:cisloPeriodika
Sep-Oct
n3:dodaniDat
n9:2011
n3:domaciTvurceVysledku
n5:2855690 n5:3026027 n5:8647623 n5:9198725 n5:8202060 n5:9606637 n5:2446030 n5:1140299
n3:druhVysledku
n18:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
289152
n3:idVysledku
RIV/67985815:_____/10:00354857
n3:jazykVysledku
n12:eng
n3:klicovaSlova
Be stars; emission-line
n3:klicoveSlovo
n13:emission-line n13:Be%20stars
n3:kodStatuVydavatele
FR - Francouzská republika
n3:kontrolniKodProRIV
[00403C7B9614]
n3:nazevZdroje
Astronomy and Astrophysics
n3:obor
n8:BN
n3:pocetDomacichTvurcuVysledku
8
n3:pocetTvurcuVysledku
12
n3:projekt
n6:GA205%2F08%2F0003
n3:rokUplatneniVysledku
n9:2010
n3:svazekPeriodika
520
n3:tvurceVysledku
Hadrava, Petr Dovčiak, Michal Nouh, M. I. Škoda, Petr Kawka, Adela Iliev, L. Korčáková, Daniela Votruba, Viktor Šlechta, Miroslav Kubát, Jiří Saad, S. M. Uytterhoeven, K.
n3:wos
000283064200086
n3:zamer
n15:AV0Z10030501
s:issn
0004-6361
s:numberOfPages
17