TIC 114936199: A Quadruple Star System with a 12 Day Outer-orbit Eclipse
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F22%3A00563241" target="_blank" >RIV/67985815:_____/22:00563241 - isvavai.cz</a>
Alternative codes found
RIV/47813059:19630/22:A0000199
Result on the web
<a href="https://hdl.handle.net/11104/0337513" target="_blank" >https://hdl.handle.net/11104/0337513</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/1538-4357/ac8934" target="_blank" >10.3847/1538-4357/ac8934</a>
Alternative languages
Result language
angličtina
Original language name
TIC 114936199: A Quadruple Star System with a 12 Day Outer-orbit Eclipse
Original language description
We report the discovery with TESS of a remarkable quadruple star system with a 2+1+1 configuration. The two unique characteristics of this system are that (i) the inner eclipsing binary (stars Aa and Ab) eclipses the star in the outermost orbit (star C), and (ii) these outer fourth-body eclipses last for similar to 12 days, the longest of any such system known. The three orbital periods are similar to 3.3 days, similar to 51 days, and similar to 2100 days. The extremely long duration of the outer eclipses is due to the fact that star B slows binary A down on the sky relative to star C. We combine TESS photometric data, ground-based photometric observations, eclipse timing points, radial velocity measurements, the composite spectral energy distribution, and stellar isochrones in a spectrophotodynamical analysis to deduce all of the basic properties of the four stars (mass, radius, T (eff), and age), as well as the orbital parameters for all three orbits. The four masses are M (Aa) = 0.382 M (circle dot), M (Ab) = 0.300 M (circle dot), M (B) = 0.540 M (circle dot), and M (C) = 0.615 M (circle dot), with a typical uncertainty of 0.015 M (circle dot).
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
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysical Journal
ISSN
0004-637X
e-ISSN
1538-4357
Volume of the periodical
938
Issue of the periodical within the volume
2
Country of publishing house
GB - UNITED KINGDOM
Number of pages
15
Pages from-to
133
UT code for WoS article
000870477500001
EID of the result in the Scopus database
2-s2.0-85140996600