LUT REVEALS A NEW MASS-TRANSFERRING SEMI-DETACHED BINARY

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F15%3A00087038" target="_blank" >RIV/00216224:14310/15:00087038 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0004-6256/150/6/193" target="_blank" >http://dx.doi.org/10.1088/0004-6256/150/6/193</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0004-6256/150/6/193" target="_blank" >10.1088/0004-6256/150/6/193</a>

Result language

angličtina

Original language name

LUT REVEALS A NEW MASS-TRANSFERRING SEMI-DETACHED BINARY

Original language description

GQ Dra is a short-period eclipsing binary in a double stellar system that was discovered by Hipparcos. Complete light curves in the UV band were obtained with the Lunar-based Ultraviolet Telescope in 2014 November and December. Photometric solutions aredetermined using the W-D (Wilson and Devinney) method. It is discovered that GQ Dra is a classical Algol-type semi-detached binary where the secondary component is filling the critical Roche lobe. An analysis of all available times of. minimum light suggests that the orbital period is increasing continuously at a rate of (P)over dot = +3.48(+/- 0.23) x 10(-7) days yr(-1). This could be explained by mass transfer from the secondary to the primary, which is in agreement with the semi-detached configuration with a lobe-filling secondary. By assuming a conservation of mass and angular momentum, the mass transfer rate is estimated as (m)over dot = 9.57(+/- 0.63) x 10(-8)M(circle dot) yr(-1).

Czech name

—

Czech description

—

Type

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

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

—

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

2015

Confidentiality

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

Name of the periodical

Astronomical Journal

ISSN

0004-6256

e-ISSN

—

Volume of the periodical

150

Issue of the periodical within the volume

6

Country of publishing house

GB - UNITED KINGDOM

Number of pages

5

Pages from-to

"nestránkováno"

UT code for WoS article

000366588600028

EID of the result in the Scopus database

—