Three new 2+2 quadruple systems with changing inclination
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F25%3A00635967" target="_blank" >RIV/67985815:_____/25:00635967 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/25:00635967 RIV/00216208:11320/25:10511215 RIV/47813059:19630/25:A0000471
Result on the web
<a href="https://hdl.handle.net/11104/0370941" target="_blank" >https://hdl.handle.net/11104/0370941</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/staf495" target="_blank" >10.1093/mnras/staf495</a>
Alternative languages
Result language
angličtina
Original language name
Three new 2+2 quadruple systems with changing inclination
Original language description
We present a unique discovery of three new detected systems showing two different phenomena together. These are 2+2 quadruple stellar systems showing two eclipsing binaries as the inner pairs. And besides that, these systems were also found to exhibit the precession of the inner orbits causing the inclination changes manifesting themselves through the eclipse depth variations. We are not aware of any similar known system on the sky nowadays, hence our discovery is really unique. In particular these systems are: CzeV4315 = HD 228777 (periods 6.7391 and 0.91932 d, inclination change of pair B of about 1.4 yr−1), ASASSN-V J075203.23−323102.7 = GDS_J0752031−323102 (8.86916 d + 2.6817 d, inclination change of pair B of about 1.03 yr−1, now only ellipsoidal variations), ASASSN-V J105824.33−611347.6 = TIC 465899856 (2.3304 d + 13.0033 d, inclination change of pair B, now undetectable). These systems provide us unique insight into the quadruple-star dynamics, including the orbit–orbit interaction, Kozai–Lidov cycles, and testing the stellar formation theories of these higher order multiples.
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/GN24-10608O" target="_blank" >GN24-10608O: Probing the populations of symbiotic stars and related red giant binaries</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Monthly Notices of the Royal Astronomical Society
ISSN
0035-8711
e-ISSN
1365-2966
Volume of the periodical
539
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
1015-1023
UT code for WoS article
001468670700001
EID of the result in the Scopus database
2-s2.0-105002843288