Eight new 2+2 doubly eclipsing quadruple systems detected

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F24%3A00587836" target="_blank" >RIV/67985815:_____/24:00587836 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/47813059:19630/24:A0000392 RIV/00216208:11320/24:10492998

Výsledek na webu

<a href="https://hdl.handle.net/11104/0354953" target="_blank" >https://hdl.handle.net/11104/0354953</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/202450400" target="_blank" >10.1051/0004-6361/202450400</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Eight new 2+2 doubly eclipsing quadruple systems detected

Popis výsledku v původním jazyce

We studied eight new doubly eclipsing stellar systems. We found that they are all rare examples of quadruple systems of 2 + 2 architecture, where both inner pairs are eclipsing binaries. Until now, such a configuration had only been proven for dozens of systems on the whole sky. We enlarged this rare group of systems with four stars in the Small Magellanic Cloud (SMC) galaxy and four brighter stars on the northern sky. These analysed systems are the following: OGLE SMC-ECL-2339 (both eclipsing periods of 0.72884 days and 3.39576 days, mutual orbital period of 5.95 years), OGLE SMC-ECL-3075 (1.35890 d, 2.41587 d, 9.75 yr), OGLE SMC-ECL-4756 (0.91773 d, 2.06047 d, 4.34 yr, OGLE SMC-ECL-6093 (0.90193 d, 2.03033 d, 31.2 yr), GSC 01949-01700 (0.24058 d, 0.75834 d, 21.7 yr), ZTF J171602.61+273606.5 (0.36001 d, 4.51545 d, 19.5 yr), WISE J210935.8+390501 (0.33228 d, 3.51575 d, 1.9 yr), and V597 And (0.46770 d, 0.35250, 20.4 yr). These systems constitute a rare selection of W UMa stars among the doubly eclipsing quadruples. For all of the systems, new dedicated observations were obtained as well. V597 And is definitely the most interesting system for several reasons: (1) the system is the brightest in our sample, (2) it is a rare quintuple (2 + 2) + 1 system, and (3) it is also closest to the Sun. It yielded the predicted angular separation of the two components of 57 mas, which is probably within the detection limits for modern, high-angular-resolution techniques.

Název v anglickém jazyce

Eight new 2+2 doubly eclipsing quadruple systems detected

Popis výsledku anglicky

We studied eight new doubly eclipsing stellar systems. We found that they are all rare examples of quadruple systems of 2 + 2 architecture, where both inner pairs are eclipsing binaries. Until now, such a configuration had only been proven for dozens of systems on the whole sky. We enlarged this rare group of systems with four stars in the Small Magellanic Cloud (SMC) galaxy and four brighter stars on the northern sky. These analysed systems are the following: OGLE SMC-ECL-2339 (both eclipsing periods of 0.72884 days and 3.39576 days, mutual orbital period of 5.95 years), OGLE SMC-ECL-3075 (1.35890 d, 2.41587 d, 9.75 yr), OGLE SMC-ECL-4756 (0.91773 d, 2.06047 d, 4.34 yr, OGLE SMC-ECL-6093 (0.90193 d, 2.03033 d, 31.2 yr), GSC 01949-01700 (0.24058 d, 0.75834 d, 21.7 yr), ZTF J171602.61+273606.5 (0.36001 d, 4.51545 d, 19.5 yr), WISE J210935.8+390501 (0.33228 d, 3.51575 d, 1.9 yr), and V597 And (0.46770 d, 0.35250, 20.4 yr). These systems constitute a rare selection of W UMa stars among the doubly eclipsing quadruples. For all of the systems, new dedicated observations were obtained as well. V597 And is definitely the most interesting system for several reasons: (1) the system is the brightest in our sample, (2) it is a rare quintuple (2 + 2) + 1 system, and (3) it is also closest to the Sun. It yielded the predicted angular separation of the two components of 57 mas, which is probably within the detection limits for modern, high-angular-resolution techniques.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Astronomy & Astrophysics

ISSN

0004-6361

e-ISSN

1432-0746

Svazek periodika

687

Číslo periodika v rámci svazku

July

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

6

Strana od-do

A6

Kód UT WoS článku

001262731800005

EID výsledku v databázi Scopus

2-s2.0-85196960532