Three new 2+2 quadruple systems with changing inclination

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/68378271:_____/25:00635967 RIV/00216208:11320/25:10511215 RIV/47813059:19630/25:A0000471

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Three new 2+2 quadruple systems with changing inclination

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Three new 2+2 quadruple systems with changing inclination

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/GN24-10608O" target="_blank" >GN24-10608O: Výzkum populací symbiotických systémů a příbuzných dvojhvězd s červenými obry</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Monthly Notices of the Royal Astronomical Society

ISSN

0035-8711

e-ISSN

1365-2966

Svazek periodika

539

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

1015-1023

Kód UT WoS článku

001468670700001

EID výsledku v databázi Scopus

2-s2.0-105002843288