Properties and nature of Be stars 31. The binary nature, light variability, physical elements, and emission-line changes of HD 81357

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F19%3A00511459" target="_blank" >RIV/67985815:_____/19:00511459 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/19:10405866 RIV/00216224:14310/19:00113465
Result on the web
<a href="https://doi.org/10.1051/0004-6361/201834597" target="_blank" >https://doi.org/10.1051/0004-6361/201834597</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201834597" target="_blank" >10.1051/0004-6361/201834597</a>

Result language
angličtina
Original language name
Properties and nature of Be stars 31. The binary nature, light variability, physical elements, and emission-line changes of HD 81357
Original language description
We report the first detailed investigation of a new representative of this class of binaries, HD 81357, based on the analysis of spectra and photometry from several observatories. HD 81357 was found to be a double-lined spectroscopic binary and an ellipsoidal variable seen under an intermediate orbital inclination of similar to(63 +/- 5)degrees, having an orbital period of 33.(d)77445(41) and a circular orbit. From an automated comparison of the observed and synthetic spectra, we estimate the component's effective temperatures to be 12930(540) K and 4260(24) K.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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