About: Spectroscopic analysis of the B/Be visual binary HR 1847

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About: Spectroscopic analysis of the B/Be visual binary HR 1847 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)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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. (en)
Title	Spectroscopic analysis of the B/Be visual binary HR 1847 Spectroscopic analysis of the B/Be visual binary HR 1847 (en)
skos:prefLabel	Spectroscopic analysis of the B/Be visual binary HR 1847 Spectroscopic analysis of the B/Be visual binary HR 1847 (en)
skos:notation	RIV/67985815:_____/10:00354857!RIV11-GA0-67985815
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA205/08/0003), Z(AV0Z10030501)
http://linked.open...iv/cisloPeriodika	Sep-Oct
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Dovčiak, Michal Korčáková, Daniela Šlechta, Miroslav Škoda, Petr Votruba, Viktor Kawka, Adela Kubát, Jiří Hadrava, Petr
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	Astronomický ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	289152
http://linked.open...ai/riv/idVysledku	RIV/67985815:_____/10:00354857
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Be stars; emission-line (en)
http://linked.open.../riv/klicoveSlovo	emission-line Be stars
http://linked.open...odStatuVydavatele	FR - Francouzská republika
http://linked.open...ontrolniKodProRIV	[00403C7B9614]
http://linked.open...i/riv/nazevZdroje	Astronomy and Astrophysics
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	8 (xsd:int)
http://linked.open...cetTvurcuVysledku	12 (xsd:int)
http://linked.open...vavai/riv/projekt	Mass-loss rate predictions for hot stars
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	520
http://linked.open...iv/tvurceVysledku	Dovčiak, Michal Hadrava, Petr Kawka, Adela Korčáková, Daniela Votruba, Viktor Škoda, Petr Šlechta, Miroslav Kubát, Jiří Iliev, L. Saad, S. M. Nouh, M. I. Uytterhoeven, K.
http://linked.open...ain/vavai/riv/wos	000283064200086
http://linked.open...n/vavai/riv/zamer	Astronomie a astrofyzika
issn	0004-6361
number of pages	17 (xsd:int)

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