Number of the records: 1
Spectroscopic analysis of the B/Be visual binary HR 1847
- 1.
SYSNO ASEP 0354857 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Spectroscopic analysis of the B/Be visual binary HR 1847 Author(s) Kubát, Jiří (ASU-R) RID, ORCID
Saad, S.M. (EG)
Kawka, Adela (ASU-R) ORCID, RID
Nouh, M. I. (EG)
Iliev, L. (BG)
Uytterhoeven, K. (FR)
Korčáková, Daniela (ASU-R)
Hadrava, Petr (ASU-R) RID, ORCID
Škoda, Petr (ASU-R) RID, ORCID
Votruba, Viktor (ASU-R) RID
Dovčiak, Michal (ASU-R) RID, ORCID
Šlechta, Miroslav (ASU-R) RID, ORCIDSource Title Astronomy & Astrophysics. - : EDP Sciences - ISSN 0004-6361
Roč. 520, Sep-Oct (2010), A103/1-A103/17Number of pages 17 s. Language eng - English Country FR - France Keywords Be stars ; emission-line Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics R&D Projects GA205/08/0003 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10030501 - ASU-R (2005-2011) UT WOS 000283064200086 DOI https://doi.org/10.1051/0004-6361/200913726 Annotation 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. Workplace Astronomical Institute Contact Anežka Melichárková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2011
Number of the records: 1