Six new doubly eclipsing quadruples in a 2+2 architecture

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F25%3A00641290" target="_blank" >RIV/67985815:_____/25:00641290 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/25:00641290 RIV/00216208:11320/25:10511208 RIV/47813059:19630/25:A0000472

Výsledek na webu

<a href="https://hdl.handle.net/11104/0371661" target="_blank" >https://hdl.handle.net/11104/0371661</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/202554792" target="_blank" >10.1051/0004-6361/202554792</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Six new doubly eclipsing quadruples in a 2+2 architecture

Popis výsledku v původním jazyce

The study presents a confirmation of six quadruples with two sets of eclipses that have the 2+2 architecture. These so-called doubly eclipsing systems still present a quite rare group of stars. We collected all available photometric data and carried out a detailed analysis of them. In addition to the precise TESS photometry used to model the light curves for both inner eclipsing binaries, photometric survey data were also used, and more than 100 nights of our own dedicated observations were carried out. These were mainly used for the detection of the long-term evolution of orbital periods. Thanks to these data, we were able to derive the mutual orbits of the inner doubles via eclipse timing variations. The systems studied are: CzeV1254 (periods 0.715348 d + 0.362593 d, mutual period 15.6 yr), ASASSN-V J070838.27-171952.9 (4.300490 d + 3.767235 d, 4 yr), ASASSN-V J091951.17-593306.9 (2.668674 d + 14.342218 d, 0.95 yr), WISE J100820.07-731554.0 (0.368315 d + 7.945339 d, 3.8 yr), ASASSN-V J143536.01-721459.4 (7.353842 d + 6.368567 d, 27.4 yr), and Corot 310284765 (1.875418 d + 2.371126 d, 22.6 yr). Some of the binaries show significantly eccentric orbits. We also estimated their apsidal motion periods. With our six new systems, the number of confirmed orbits of 2+2 quadruples has been increased to 64 in total.

Název v anglickém jazyce

Six new doubly eclipsing quadruples in a 2+2 architecture

Popis výsledku anglicky

The study presents a confirmation of six quadruples with two sets of eclipses that have the 2+2 architecture. These so-called doubly eclipsing systems still present a quite rare group of stars. We collected all available photometric data and carried out a detailed analysis of them. In addition to the precise TESS photometry used to model the light curves for both inner eclipsing binaries, photometric survey data were also used, and more than 100 nights of our own dedicated observations were carried out. These were mainly used for the detection of the long-term evolution of orbital periods. Thanks to these data, we were able to derive the mutual orbits of the inner doubles via eclipse timing variations. The systems studied are: CzeV1254 (periods 0.715348 d + 0.362593 d, mutual period 15.6 yr), ASASSN-V J070838.27-171952.9 (4.300490 d + 3.767235 d, 4 yr), ASASSN-V J091951.17-593306.9 (2.668674 d + 14.342218 d, 0.95 yr), WISE J100820.07-731554.0 (0.368315 d + 7.945339 d, 3.8 yr), ASASSN-V J143536.01-721459.4 (7.353842 d + 6.368567 d, 27.4 yr), and Corot 310284765 (1.875418 d + 2.371126 d, 22.6 yr). Some of the binaries show significantly eccentric orbits. We also estimated their apsidal motion periods. With our six new systems, the number of confirmed orbits of 2+2 quadruples has been increased to 64 in total.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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

Astronomy & Astrophysics

ISSN

0004-6361

e-ISSN

1432-0746

Svazek periodika

702

Číslo periodika v rámci svazku

Oct.

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

9

Strana od-do

A234

Kód UT WoS článku

001600932400003

EID výsledku v databázi Scopus

2-s2.0-105020672392