Period ratios and observation of noticeable resonance at 3:2 for 2+2 quadruple systems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F26%3A0198947" target="_blank" >RIV/00216305:26210/26:0198947 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/25:00141014
Result on the web
<a href="https://academic.oup.com/mnras/article/538/2/1160/8069005" target="_blank" >https://academic.oup.com/mnras/article/538/2/1160/8069005</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/staf364" target="_blank" >10.1093/mnras/staf364</a>
Alternative languages
Result language
angličtina
Original language name
Period ratios and observation of noticeable resonance at 3:2 for 2+2 quadruple systems
Original language description
Quadruple stellar systems with two mutually orbiting eclipsing pairs (2+2 quadruples) are currently of great scientific interest because they offer a unique opportunity to determine the physical parameters of their constituent stars with high precision. In this study, we enlarge their numbers and present an analysis of the orbital periods and their ratios for a sample of 781 quadruple candidates with a 2+2 structure. Moreover, we compare the observed distribution of period ratios to a simulated prediction based on a uniform distribution of inner periods. We find a preference for a 3:2 resonance between the inner orbital periods, while the 1:1, 4:3, and 5:3 resonances do not deviate significantly from the predicted distribution model. Higher resonant values are on a slight decline, probably due to a lack of data. These results, derived from the largest statistical ensemble of 2+2 quadruples to date, provide evidence for the hypothesis that gravitational interactions between the star pairs can preferentially lead to a 3:2 resonance during their evolution.
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
S - Specificky vyzkum na vysokych skolach
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
2
Issue of the periodical within the volume
538
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
1160-1166
UT code for WoS article
001442499400001
EID of the result in the Scopus database
2-s2.0-105000374740