Six new doubly eclipsing quadruples in a 2+2 architecture

J 2025

Six new doubly eclipsing quadruples in a 2+2 architecture

ZASCHE, P.; Hana KUČÁKOVÁ; J. KARA; J. MERC; Z. HENZL et al.

Basic information

Original name

Six new doubly eclipsing quadruples in a 2+2 architecture

Authors

ZASCHE, P.; Hana KUČÁKOVÁ; J. KARA; J. MERC; Z. HENZL; M. MASEK; L. CERVINKA and V. DIENSTBIER

Edition

ASTRONOMY & ASTROPHYSICS, LES ULIS CEDEX A, EDP SCIENCES S A, 2025, 0004-6361

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

10308 Astronomy

Country of publisher

France

Confidentiality degree

is not subject to a state or trade secret

References:

URL

Impact factor

Impact factor: 5.800 in 2024

Organization unit

Institute of physics in Opava

DOI

https://doi.org/10.1051/0004-6361/202554792

UT WoS

001600932400003

EID Scopus

2-s2.0-105020672392

Keywords in English

binaries: eclipsing;binaries: close;stars: fundamental parameters

Abstract

In the original language

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.

Cite

ZASCHE, P.; Hana KUČÁKOVÁ; J. KARA; J. MERC; Z. HENZL; M. MASEK; L. CERVINKA and V. DIENSTBIER. Six new doubly eclipsing quadruples in a 2+2 architecture. ASTRONOMY & ASTROPHYSICS. LES ULIS CEDEX A: EDP SCIENCES S A, 2025, vol. 702, October 2025, p. "A234-1"-"A234-9", 9 pp. ISSN 0004-6361. Available from: https://doi.org/10.1051/0004-6361/202554792.

@article{90423,
   author = {Zasche, P. and Kučáková, Hana and Kara, J. and Merc, J. and Henzl, Z. and Masek, M. and Cervinka, L. and Dienstbier, V.},
   article_location = {LES ULIS CEDEX A},
   article_number = {October 2025},
   doi = {https://doi.org/10.1051/0004-6361/202554792},
   keywords = {binaries: eclipsing;binaries: close;stars: fundamental parameters},
   language = {eng},
   issn = {0004-6361},
   journal = {ASTRONOMY & ASTROPHYSICS},
   title = {Six new doubly eclipsing quadruples in a 2+2 architecture},
   url = {https://www.aanda.org/articles/aa/full_html/2025/10/aa54792-25/aa54792-25.html},
   volume = {702},
   year = {2025}
}

TY  - JOUR
ID  - 90423
AU  - Zasche, P. - Kučáková, Hana - Kara, J. - Merc, J. - Henzl, Z. - Masek, M. - Cervinka, L. - Dienstbier, V.
PY  - 2025
TI  - Six new doubly eclipsing quadruples in a 2+2 architecture
JF  - ASTRONOMY & ASTROPHYSICS
VL  - 702
IS  - October 2025
SP  - "A234-1"-"A234-9"
EP  - "A234-1"-"A234-9"
PB  - EDP SCIENCES S A
SN  - 00046361
KW  - binaries: eclipsing;binaries: close;stars: fundamental parameters
UR  - https://www.aanda.org/articles/aa/full_html/2025/10/aa54792-25/aa54792-25.html
N2  - 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.
ER  -

ZASCHE, P.; Hana KUČÁKOVÁ; J. KARA; J. MERC; Z. HENZL; M. MASEK; L. CERVINKA and V. DIENSTBIER. Six new doubly eclipsing quadruples in a 2+2 architecture. \textit{ASTRONOMY \&{}amp; ASTROPHYSICS}. LES ULIS CEDEX A: EDP SCIENCES S A, 2025, vol.~702, October 2025, p.~''A234-1''-''A234-9'', 9 pp. ISSN~0004-6361. Available from: https://doi.org/10.1051/0004-6361/202554792.

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