Orbital parameters and evolutionary status of the highly peculiar binary system HD 66051

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00103352" target="_blank" >RIV/00216224:14310/18:00103352 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1051/0004-6361/201732257" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201732257</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201732257" target="_blank" >10.1051/0004-6361/201732257</a>

Result language

angličtina

Original language name

Orbital parameters and evolutionary status of the highly peculiar binary system HD 66051

Original language description

Context. The spectroscopic binary system HD66051 (V414 Pup) consists of a highly peculiar CP3 (HgMn) star and an A-type component. It also shows out-of-eclipse variability that is due to chemical spots. This combination allows the derivation of tight constraints for the testing of time-dependent diffusion models. Aims. We aim at deriving astrophysical parameters, information on age, and an orbital solution of the system. Methods. We analysed radial velocity and photometric data using two different methods to determine astrophysical parameters and the orbit of the system. Appropriate isochrones were used to derive the age of the system. Results. The orbital solution and the estimates from the isochrones are in excellent agreement with the estimates from a prior spectroscopic study. The system is very close to the zero-age main sequence and younger than 120 Myr. Conclusions. HD66051 is a most important spectroscopic binary system that can be used to test the predictions of the diffusion theory explaining the peculiar surface abundances of CP3 stars.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

<a href="/en/project/7AMB17AT030" target="_blank" >7AMB17AT030: The analysis of spotted stars using high precision data</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

ASTRONOMY &amp; ASTROPHYSICS

ISSN

1432-0746

e-ISSN

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Volume of the periodical

615

Issue of the periodical within the volume

1

Country of publishing house

FR - FRANCE

Number of pages

5

Pages from-to

36-40

UT code for WoS article

000437745600001

EID of the result in the Scopus database

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