Hunt for extremely eccentric eclipsing binaries
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00551253" target="_blank" >RIV/68378271:_____/21:00551253 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/21:10438770
Result on the web
<a href="https://doi.org/10.1051/0004-6361/202141052" target="_blank" >https://doi.org/10.1051/0004-6361/202141052</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202141052" target="_blank" >10.1051/0004-6361/202141052</a>
Alternative languages
Result language
angličtina
Original language name
Hunt for extremely eccentric eclipsing binaries
Original language description
We report the very first analysis of 27 eclipsing binary systems with high eccentricities that sometimes reach up to 0.8. The orbital periods for these systems range from 1.4 to 37 days, and the median of the sample is 10.3 days. Star CzeV3392 (= UCAC4 623 022784), for example, currently is the eclipsing system with the highest eccentricity (e = 0.22) of stars with a period shorter than 1.5 days. We analysed the light curves of all 27 systems and obtained the physical parameters of both components, such as relative radii, inclinations, or relative luminosities. The most important parameters appear to be the derived periods and eccentricities. They allow constructing the period-eccentricity diagram. This eccentricity distribution is used to study the tidal circularisation theories. Many systems have detected third-light contributions, which means that the Kozai-Lidov cycles might also be responsible for the high eccentricities in some of the binaries.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - 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)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy & Astrophysics
ISSN
0004-6361
e-ISSN
1432-0746
Volume of the periodical
652
Issue of the periodical within the volume
Aug
Country of publishing house
FR - FRANCE
Number of pages
6
Pages from-to
A81
UT code for WoS article
000684667600013
EID of the result in the Scopus database
2-s2.0-85112818430