LUT REVEALS A NEW MASS-TRANSFERRING SEMI-DETACHED BINARY

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

LUT REVEALS A NEW MASS-TRANSFERRING SEMI-DETACHED BINARY

Popis výsledku v původním jazyce

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).

Název v anglickém jazyce

LUT REVEALS A NEW MASS-TRANSFERRING SEMI-DETACHED BINARY

Popis výsledku anglicky

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).

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

<a href="/cs/project/LH14300" target="_blank" >LH14300: Výzkum zvláštních proměnných hvězd</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Astronomical Journal

ISSN

0004-6256

e-ISSN

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Svazek periodika

150

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

"nestránkováno"

Kód UT WoS článku

000366588600028

EID výsledku v databázi Scopus

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