ABSOLUTE PROPERTIES OF THE TRIPLE STAR HP AURIGAE

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10286206" target="_blank" >RIV/00216208:11320/14:10286206 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0004-6256/147/1/1" target="_blank" >http://dx.doi.org/10.1088/0004-6256/147/1/1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0004-6256/147/1/1" target="_blank" >10.1088/0004-6256/147/1/1</a>

Result language

angličtina

Original language name

ABSOLUTE PROPERTIES OF THE TRIPLE STAR HP AURIGAE

Original language description

New photometric, spectroscopic, and eclipse timing observations of the eclipsing binary star HP Aur allow for very accurate orbital determinations, even in the presence of a third body and transient starspot activity. The eclipsing binary masses are determined to an accuracy of +-0.4% and the radii to +-0.6%. The masses are 0.9543 +- 0.0041 and 0.8094 +- 0.0036 solar masses, and the radii are 1.0278 +- 0.0042 and 0.7758 +- 0.0034 solar radii, respectively. The orbital period in the outer orbit is accurately determined for the first time: 4.332 +- 0.011 yr. A comparison with current theories of stellar evolution shows that the components' absolute properties can be well-matched by the current models at an age of about 7 billion years.

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

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2014

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

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Volume of the periodical

147

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

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UT code for WoS article

000328694500001

EID of the result in the Scopus database

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