Study of Eclipsing Binary and Multiple Systems in OB Associations. II. The Cygnus OB Region: V443 Cyg, V456 Cyg, and V2107 Cyg

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F14%3A00076685" target="_blank" >RIV/00216224:14310/14:00076685 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/0004-6256/147/6/149" target="_blank" >http://dx.doi.org/10.1088/0004-6256/147/6/149</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0004-6256/147/6/149" target="_blank" >10.1088/0004-6256/147/6/149</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Study of Eclipsing Binary and Multiple Systems in OB Associations. II. The Cygnus OB Region: V443 Cyg, V456 Cyg, and V2107 Cyg

Popis výsledku v původním jazyce

Three presumably young eclipsing binary systems in the direction of the Cygnus OB1, OB3, and OB9 associations are studied. Component spectra are reconstructed and their orbits are determined using light curves and spectra disentangling techniques. V443 Cyg and V456 Cyg have circular orbits while the light curve of V2107 Cyg imposes a slightly eccentric orbit (e = 0.045+/-0.03). V443 Cyg harbors F-type stars, not young early-A stars as previously suggested in the literature based solely on photometry. Itappears to be situated in the foreground (distance 0.6+/-0.2 kpc) of the young stellar populations in Cygnus. V456 Cyg, at a distance of 0.50+/-0.03 kpc, consists of a slightly metal-weak A-type star and an early-F star. The age of both systems, on or very near to the main sequence, remains uncertain by an order of magnitude. V2107 Cyg is a more massive system (8.9+/-2 and 4.5 ? 1.2 Ms) at 1.5+/-0.5 kpc and, also kinematically, a strong candidate-member of Cyg OB1.

Název v anglickém jazyce

Study of Eclipsing Binary and Multiple Systems in OB Associations. II. The Cygnus OB Region: V443 Cyg, V456 Cyg, and V2107 Cyg

Popis výsledku anglicky

Three presumably young eclipsing binary systems in the direction of the Cygnus OB1, OB3, and OB9 associations are studied. Component spectra are reconstructed and their orbits are determined using light curves and spectra disentangling techniques. V443 Cyg and V456 Cyg have circular orbits while the light curve of V2107 Cyg imposes a slightly eccentric orbit (e = 0.045+/-0.03). V443 Cyg harbors F-type stars, not young early-A stars as previously suggested in the literature based solely on photometry. Itappears to be situated in the foreground (distance 0.6+/-0.2 kpc) of the young stellar populations in Cygnus. V456 Cyg, at a distance of 0.50+/-0.03 kpc, consists of a slightly metal-weak A-type star and an early-F star. The age of both systems, on or very near to the main sequence, remains uncertain by an order of magnitude. V2107 Cyg is a more massive system (8.9+/-2 and 4.5 ? 1.2 Ms) at 1.5+/-0.5 kpc and, also kinematically, a strong candidate-member of Cyg OB1.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

The Astronomical Journal

ISSN

0004-6256

e-ISSN

—

Svazek periodika

147

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

149-161

Kód UT WoS článku

000336262600025

EID výsledku v databázi Scopus

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