CzeV1731: The unique doubly eclipsing quadruple system
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F20%3A00537280" target="_blank" >RIV/67985815:_____/20:00537280 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/20:00537280
Result on the web
<a href="https://doi.org/10.1051/0004-6361/202038656" target="_blank" >https://doi.org/10.1051/0004-6361/202038656</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202038656" target="_blank" >10.1051/0004-6361/202038656</a>
Alternative languages
Result language
angličtina
Original language name
CzeV1731: The unique doubly eclipsing quadruple system
Original language description
We report the discovery of the relatively bright (V=10.5 mag), doubly eclipsing 2+2 quadruple system CzeV1731. This is the third known system of its kind, in which the masses are determined for all four stars and both the inner and outer orbits are characterized. The inner eclipsing binaries are well-detached systems moving on circular orbits: pair A with period P-A=4.10843 d and pair B with P-B=4.67552 d. The inner binaries contain very similar components (q approximate to 1.0), making the whole system a so-called double twin. The stars in pair B have slightly larger luminosities and masses and pair A shows deeper eclipses. All four components are main-sequence stars of F/G spectral type. The mutual orbit of the two pairs around the system barycenter has a period of about 34 yr and an eccentricity of about 0.38. However, further observations are needed to reveal the overall architecture of the whole system, including the mutual inclinations of all orbits. This is a promising target for interferometry to detect the double at about 59 mas and Delta M-bol< 1 mag.
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
<a href="/en/project/LTT17006" target="_blank" >LTT17006: Development of Czech participation in CTA</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
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
1432-0746
e-ISSN
—
Volume of the periodical
642
Issue of the periodical within the volume
October
Country of publishing house
FR - FRANCE
Number of pages
5
Pages from-to
A63
UT code for WoS article
000581811000001
EID of the result in the Scopus database
2-s2.0-85093928172