1SWASP J200503.05-343726.5: A high mass ratio eclipsing binary
near the period limit

J 2017

1SWASP J200503.05-343726.5: A high mass ratio eclipsing binary near the period limit

ZHANG, B., Shengbang QIAN, Miloslav ZEJDA, Liying ZHU, Nianping LIU et. al.

Základní údaje

Originální název

1SWASP J200503.05-343726.5: A high mass ratio eclipsing binary near the period limit

Autoři

ZHANG, B. (156 Čína), Shengbang QIAN (156 Čína), Miloslav ZEJDA (203 Česká republika, garant, domácí), Liying ZHU (156 Čína) a Nianping LIU (156 Čína)

Vydání

New Astronomy, AMSTERDAM, Elsevier Science, 2017, 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

Impakt faktor

Impact factor: 0.920

Kód RIV

RIV/00216224:14310/17:00099154

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1016/j.newast.2017.01.007

UT WoS

000397369300007

Klíčová slova anglicky

Binary; Eclipsing binary; Short-period limit; Light curves

Štítky

NZ, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 13. 4. 2018 10:29, Ing. Nicole Zrilić

Anotace

V originále

First CCD photometric light curves of the eclipsing binary system 1SWASP J200503.05-343726.5 are presented. Our complete light curves in V, R and I bands using the Bessell filter show an out-of-eclipsing distortion, which means that the components of the system may be active. The preliminary photometric solutions with a cool star-spot are derived by using the 2013 version of the Wilson-Devinney (W-D) code. The photometric solutions suggest that 1SWASP J200503.05-343726.5 is a shallow-contact eclipsing binary(f = 9.0%) with a mass ratio of q= 1.0705, which is very high for late-type binary systems near the period limit. The primary component is about 230 K hotter than the secondary component. Based on our new CCD eclipse times, the orbital period change was analyzed. According to 0 C diagram, the orbital period of the 1SWASP 1200503.05-343726.5 shows an increase at a rate of <(P)over dot> = +5.43 x 10(-8) days year(-1). The period increase may be caused by mass transfer from the less massive component to the more massive one. This shallow-contact system may be formed from a detached short-period binary via orbital shrinkage because of dynamical interactions with a third component or by magnetic braking. (C) 2017 Elsevier B.V. All rights reserved.

Návaznosti

LG15010, projekt VaV

Název: F. Magellanes: projekt podpory studia hvězd a hvězdných soustav na základě pozorování ze Země a z kosmického prostoru (Akronym: Magellan2015)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, F. Magellanes: projekt podpory studia hvězd a hvězdných soustav na základě pozorování ze Země a z kosmického prostoru

Citovat

ZHANG, B., Shengbang QIAN, Miloslav ZEJDA, Liying ZHU a Nianping LIU. 1SWASP J200503.05-343726.5: A high mass ratio eclipsing binary near the period limit. New Astronomy. AMSTERDAM: Elsevier Science, 2017, roč. 54, July, s. 52-55. ISSN 1384-1076. Dostupné z: https://dx.doi.org/10.1016/j.newast.2017.01.007.

@article{1401973,
   author = {Zhang, B. and Qian, Shengbang and Zejda, Miloslav and Zhu, Liying and Liu, Nianping},
   article_location = {AMSTERDAM},
   article_number = {July},
   doi = {http://dx.doi.org/10.1016/j.newast.2017.01.007},
   keywords = {Binary; Eclipsing binary; Short-period limit; Light curves},
   language = {eng},
   issn = {1384-1076},
   journal = {New Astronomy},
   title = {1SWASP J200503.05-343726.5: A high mass ratio eclipsing binary near the period limit},
   volume = {54},
   year = {2017}
}

TY  - JOUR
ID  - 1401973
AU  - Zhang, B. - Qian, Shengbang - Zejda, Miloslav - Zhu, Liying - Liu, Nianping
PY  - 2017
TI  - 1SWASP J200503.05-343726.5: A high mass ratio eclipsing binary near the period limit
JF  - New Astronomy
VL  - 54
IS  - July
SP  - 52-55
EP  - 52-55
PB  - Elsevier Science
SN  - 13841076
KW  - Binary
KW  - Eclipsing binary
KW  - Short-period limit
KW  - Light curves
N2  - First CCD photometric light curves of the eclipsing binary system 1SWASP J200503.05-343726.5 are presented. Our complete light curves in V, R and I bands using the Bessell filter show an out-of-eclipsing distortion, which means that the components of the system may be active. The preliminary photometric solutions with a cool star-spot are derived by using the 2013 version of the Wilson-Devinney (W-D) code. The photometric solutions suggest that 1SWASP J200503.05-343726.5 is a shallow-contact eclipsing binary(f = 9.0%) with a mass ratio of q= 1.0705, which is very high for late-type binary systems near the period limit. The primary component is about 230 K hotter than the secondary component. Based on our new CCD eclipse times, the orbital period change was analyzed. According to 0 C diagram, the orbital period of the 1SWASP 1200503.05-343726.5 shows an increase at a rate of <(P)over dot> = +5.43 x 10(-8) days year(-1). The period increase may be caused by mass transfer from the less massive component to the more massive one. This shallow-contact system may be formed from a detached short-period binary via orbital shrinkage because of dynamical interactions with a third component or by magnetic braking. (C) 2017 Elsevier B.V. All rights reserved.
ER  -

ZHANG, B., Shengbang QIAN, Miloslav ZEJDA, Liying ZHU a Nianping LIU. 1SWASP J200503.05-343726.5: A high mass ratio eclipsing binary near the period limit. \textit{New Astronomy}. AMSTERDAM: Elsevier Science, 2017, roč.~54, July, s.~52-55. ISSN~1384-1076. Dostupné z: https://dx.doi.org/10.1016/j.newast.2017.01.007.

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