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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

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

Name of the periodical

The Astronomical Journal

ISSN

0004-6256

e-ISSN

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Volume of the periodical

147

Issue of the periodical within the volume

6

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

149-161

UT code for WoS article

000336262600025

EID of the result in the Scopus database

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