Lunar-based Ultraviolet Telescope study of the well-known Algol-type binary TWDra

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F16%3A00093971" target="_blank" >RIV/00216224:14310/16:00093971 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/1674-4527/16/6/094" target="_blank" >http://dx.doi.org/10.1088/1674-4527/16/6/094</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1674-4527/16/6/094" target="_blank" >10.1088/1674-4527/16/6/094</a>

Result language

angličtina

Original language name

Lunar-based Ultraviolet Telescope study of the well-known Algol-type binary TWDra

Original language description

By using the Lunar-based Ultraviolet Telescope (LUT) from 2014 December 2 to December 4, the first near-UV light curve of the well-known Algol-type binary TW Dra is reported, which is analyzed with the 2013 version of the W-D code. Our solutions confirmed that TW Dra is a semi-detached binary system where the secondary component fills its Roche lobe. The mass ratio and a high inclination are obtained (q = 0.47, i = 86.68 degrees). Based on 589 available data spanning more than one century, the complex period changes are studied. Secular increase and three cyclical changes are found in the corresponding orbital period analysis. The secular increase changes reveal mass transfer from the secondary component to the primary one at a rate of 6.8 x 10(-7) M(circle dot)yr(-1). One large cyclical change of 116.04 yr may be caused by disturbance of visual component ADS 9706B orbiting TW Dra (ADS 9706A), while the other two cyclical changes with shorter periods of 22.47 and 37.

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

<a href="/en/project/LH14300" target="_blank" >LH14300: Investigations of curious variable stars</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

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

Name of the periodical

Research in Astronomy and Astrophysics

ISSN

1674-4527

e-ISSN

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Volume of the periodical

16

Issue of the periodical within the volume

6

Country of publishing house

CN - CHINA

Number of pages

6

Pages from-to

"nestrankovano"

UT code for WoS article

000377524600009

EID of the result in the Scopus database

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