The two eccentric eclipsing binaries in multiple systems: V539
Arae and V335 Serpentis

J 2022

The two eccentric eclipsing binaries in multiple systems: V539 Arae and V335 Serpentis

WOLF, M., M. ZEJDA, M. MASEK, Hana KUČÁKOVÁ, de Joode M SOUZA et. al.

Základní údaje

Originální název

The two eccentric eclipsing binaries in multiple systems: V539 Arae and V335 Serpentis

Autoři

WOLF, M., M. ZEJDA, M. MASEK, Hana KUČÁKOVÁ (203 Česká republika, domácí), de Joode M SOUZA, R. UHLAR a P. ZASCHE

Vydání

NEW ASTRONOMY, 2022, 1384-1076

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Kód RIV

RIV/47813059:19630/22:A0000224

Organizační jednotka

Fyzikální ústav v Opavě

DOI

http://dx.doi.org/10.1016/j.newast.2021.101708

UT WoS

000707225600002

Klíčová slova anglicky

Binaries: Close; Binaries: Eclipsing; Stars: Fundamental parameters; Stars: Individual: (V539 Ara and V335 Ser)

Štítky

FÚ, RIV23

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 8. 2. 2023 15:25, Mgr. Pavlína Jalůvková

Anotace

V originále

We present new results of our long-term observational project to analyze the variations of the orbital period for early-type eccentric eclipsing binaries. Altogether 77 new mid-eclipse times were measured or derived for two eclipsing binaries, namely V539 Ara and V335 Ser. Based on current O - C diagrams, we found in both systems that times of minima besides the typical apsidal motion show additional cyclical changes likely caused by the third or fourth bodies orbiting the eclipsing pair. The improved periods of apsidal motion are 155 and 1080 years, respectively. For the first time we propose a third and fourth body orbiting V539 Ara, stellar companions in a hierarchical system with a minimal mass of 0.41 and 1.74 M-circle dot . In V355 Ser we found a possible third body with a mass of 0.18 M-circle dot orbiting this eclipsing pair. The third- and fourth-body orbital periods are relatively short 29 and 57 yr in case of V539 Ara, and 25 yr for V335 Ser.

Citovat

WOLF, M., M. ZEJDA, M. MASEK, Hana KUČÁKOVÁ, de Joode M SOUZA, R. UHLAR a P. ZASCHE. The two eccentric eclipsing binaries in multiple systems: V539 Arae and V335 Serpentis. NEW ASTRONOMY. 2022, roč. 92, April, s. "101708-1"-"101708-6", 6 s. ISSN 1384-1076. Dostupné z: https://dx.doi.org/10.1016/j.newast.2021.101708.

@article{65945,
   author = {Wolf, M. and Zejda, M. and Masek, M. and Kučáková, Hana and Souza, de Joode M and Uhlar, R. and Zasche, P.},
   article_number = {April},
   doi = {http://dx.doi.org/10.1016/j.newast.2021.101708},
   keywords = {Binaries: Close; Binaries: Eclipsing; Stars: Fundamental parameters; Stars: Individual: (V539 Ara and V335 Ser)},
   language = {eng},
   issn = {1384-1076},
   journal = {NEW ASTRONOMY},
   title = {The two eccentric eclipsing binaries in multiple systems: V539 Arae and V335 Serpentis},
   url = {https://www.sciencedirect.com/science/article/pii/S1384107621001287?via%3Dihub},
   volume = {92},
   year = {2022}
}

TY  - JOUR
ID  - 65945
AU  - Wolf, M. - Zejda, M. - Masek, M. - Kučáková, Hana - Souza, de Joode M - Uhlar, R. - Zasche, P.
PY  - 2022
TI  - The two eccentric eclipsing binaries in multiple systems: V539 Arae and V335 Serpentis
JF  - NEW ASTRONOMY
VL  - 92
IS  - April
SP  - "101708-1"-"101708-6"
EP  - "101708-1"-"101708-6"
SN  - 13841076
KW  - Binaries: Close
KW  - Binaries: Eclipsing
KW  - Stars: Fundamental parameters
KW  - Stars: Individual: (V539 Ara and V335 Ser)
UR  - https://www.sciencedirect.com/science/article/pii/S1384107621001287?via%3Dihub
N2  - We present new results of our long-term observational project to analyze the variations of the orbital period for early-type eccentric eclipsing binaries. Altogether 77 new mid-eclipse times were measured or derived for two eclipsing binaries, namely V539 Ara and V335 Ser. Based on current O - C diagrams, we found in both systems that times of minima besides the typical apsidal motion show additional cyclical changes likely caused by the third or fourth bodies orbiting the eclipsing pair. The improved periods of apsidal motion are 155 and 1080 years, respectively. For the first time we propose a third and fourth body orbiting V539 Ara, stellar companions in a hierarchical system with a minimal mass of 0.41 and 1.74 M-circle dot . In V355 Ser we found a possible third body with a mass of 0.18 M-circle dot orbiting this eclipsing pair. The third- and fourth-body orbital periods are relatively short 29 and 57 yr in case of V539 Ara, and 25 yr for V335 Ser.
ER  -

WOLF, M., M. ZEJDA, M. MASEK, Hana KUČÁKOVÁ, de Joode M SOUZA, R. UHLAR a P. ZASCHE. The two eccentric eclipsing binaries in multiple systems: V539 Arae and V335 Serpentis. \textit{NEW ASTRONOMY}. 2022, roč.~92, April, s.~''101708-1''-''101708-6'', 6 s. ISSN~1384-1076. Dostupné z: https://dx.doi.org/10.1016/j.newast.2021.101708.

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