A Rare Low-mass Short-period Eclipsing Binary Candidate With A
Close-in Non-coplanar Stellar Companion

J 2021

A Rare Low-mass Short-period Eclipsing Binary Candidate With A Close-in Non-coplanar Stellar Companion

ZHANG, Bin; S. B. QIAN; Miloslav ZEJDA; Zhi QIJUN; Dong AIJUN et. al.

Základní údaje

Originální název

A Rare Low-mass Short-period Eclipsing Binary Candidate With A Close-in Non-coplanar Stellar Companion

Autoři

ZHANG, Bin; S. B. QIAN; Miloslav ZEJDA (203 Česká republika, garant, domácí); Zhi QIJUN; Dong AIJUN a L. Y. ZHU

Vydání

New Astronomy, Amsterdam, Elsevier, 2021, 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

Impakt faktor

Impact factor: 2.096

Kód RIV

RIV/00216224:14310/21:00120845

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1016/j.newast.2020.101502

UT WoS

000579846400019

EID Scopus

2-s2.0-85091077781

Klíčová slova anglicky

binary; eclipsing binary; orbital period; light curves

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 7. 12. 2020 14:15, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

First multi-colour light curves (LCs) of the short-period contact eclipsing binary (CEB) 1SWASP J224747.20351849.3 (hereafter J2247) are presented and analyzed by using the 2013 version of the Wilson-Devinney (W - D) code in this paper. We found that J2247 was a low-mass W-subtype medium CEB. Third light was detected and the average luminosity contribution (l(3)/L-all) was as high as 67.89%. Until now, it is the first reported CEB near the period cut-off with so strong third light. Using the O - C (observed-calculated) method, we analyzed its orbital period variations. We found that its O - C diagram shows a secular increase superimposed on a cyclic oscillation. The orbital period increases at a rate of dP/dt = +1.87 x 10(-7) days yr(-1), which can be explained by the mass transfer from the less massive component to the more massive one. Meanwhile, the 0 - C diagram also displays a cyclic oscillation with a period about 5.17 years and an amplitude of 0.0032 days, which may due to the light-travel time effect (LITE) arising from the gravitational influence of a close-in tertiary component. The mass of the additional component is M(3)sin(i(3)) =0.24(+/- 0.01)M-circle dot, and the orbital distance between the tertiary component and the central binary is about 2.82(+/- 0.05) au. All of these suggest that the third body is not coplanar with the central system, at the same time, the orbital inclination is low. This close-in companion may helps to speed up the formation and evolution of J2247 by drawing angular momentum from the central system.

Citovat

ZHANG, Bin; S. B. QIAN; Miloslav ZEJDA; Zhi QIJUN; Dong AIJUN a L. Y. ZHU. A Rare Low-mass Short-period Eclipsing Binary Candidate With A Close-in Non-coplanar Stellar Companion. New Astronomy. Amsterdam: Elsevier, 2021, roč. 83, February 2021, s. 1-5. ISSN 1384-1076. Dostupné z: https://dx.doi.org/10.1016/j.newast.2020.101502.

@article{1705357,
   author = {Zhang, Bin and Qian, S. B. and Zejda, Miloslav and Qijun, Zhi and Aijun, Dong and Zhu, L. Y.},
   article_location = {Amsterdam},
   article_number = {February 2021},
   doi = {http://dx.doi.org/10.1016/j.newast.2020.101502},
   keywords = {binary; eclipsing binary; orbital period; light curves},
   language = {eng},
   issn = {1384-1076},
   journal = {New Astronomy},
   title = {A Rare Low-mass Short-period Eclipsing Binary Candidate With A Close-in Non-coplanar Stellar Companion},
   url = {https://doi.org/10.1016/j.newast.2020.101502},
   volume = {83},
   year = {2021}
}

TY  - JOUR
ID  - 1705357
AU  - Zhang, Bin - Qian, S. B. - Zejda, Miloslav - Qijun, Zhi - Aijun, Dong - Zhu, L. Y.
PY  - 2021
TI  - A Rare Low-mass Short-period Eclipsing Binary Candidate With A Close-in Non-coplanar Stellar Companion
JF  - New Astronomy
VL  - 83
IS  - February 2021
SP  - 1-5
EP  - 1-5
PB  - Elsevier
SN  - 13841076
KW  - binary
KW  - eclipsing binary
KW  - orbital period
KW  - light curves
UR  - https://doi.org/10.1016/j.newast.2020.101502
L2  - https://doi.org/10.1016/j.newast.2020.101502
N2  - First multi-colour light curves (LCs) of the short-period contact eclipsing binary (CEB) 1SWASP J224747.20351849.3 (hereafter J2247) are presented and analyzed by using the 2013 version of the Wilson-Devinney (W - D) code in this paper. We found that J2247 was a low-mass W-subtype medium CEB. Third light was detected and the average luminosity contribution (l(3)/L-all) was as high as 67.89%. Until now, it is the first reported CEB near the period cut-off with so strong third light. Using the O - C (observed-calculated) method, we analyzed its orbital period variations. We found that its O - C diagram shows a secular increase superimposed on a cyclic oscillation. The orbital period increases at a rate of dP/dt = +1.87 x 10(-7) days yr(-1), which can be explained by the mass transfer from the less massive component to the more massive one. Meanwhile, the 0 - C diagram also displays a cyclic oscillation with a period about 5.17 years and an amplitude of 0.0032 days, which may due to the light-travel time effect (LITE) arising from the gravitational influence of a close-in tertiary component. The mass of the additional component is M(3)sin(i(3)) =0.24(+/- 0.01)M-circle dot, and the orbital distance between the tertiary component and the central binary is about 2.82(+/- 0.05) au. All of these suggest that the third body is not coplanar with the central system, at the same time, the orbital inclination is low. This close-in companion may helps to speed up the formation and evolution of J2247 by drawing angular momentum from the central system.
ER  -

ZHANG, Bin; S. B. QIAN; Miloslav ZEJDA; Zhi QIJUN; Dong AIJUN a L. Y. ZHU. A Rare Low-mass Short-period Eclipsing Binary Candidate With A Close-in Non-coplanar Stellar Companion. \textit{New Astronomy}. Amsterdam: Elsevier, 2021, roč.~83, February 2021, s.~1-5. ISSN~1384-1076. Dostupné z: https://dx.doi.org/10.1016/j.newast.2020.101502.

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