First photometric study of two contact binaries: 1SWASP J15133589-3725239, 1SWASP J22310605-1940584

Autor:	Roberto P.S. Pires, Raul Michel Murillo, Carlos Alberto Guerrero Pena, Mehmet Tanriver
Rok vydání:	2020
Předmět:	Maxima and minima Physics 010308 nuclear & particles physics Space and Planetary Science 0103 physical sciences Binary number Astronomy and Astrophysics Astrophysics State (functional analysis) Light curve 010303 astronomy & astrophysics 01 natural sciences Instrumentation
Zdroj:	New Astronomy. 81:101440
ISSN:	1384-1076
DOI:	10.1016/j.newast.2020.101440
Popis:	We present the results of our investigation and first analysis of the geometrical and physical parameters of the 1SWASP J15133589-3725239 and 1SWASP J22310605-1940584 W UMa-type binary systems. Light curve analysis was performed with the PHOEBE0.31a interface program based on the Wilson-Devinney code. New times of minima and light elements have been determined. According to our solution, the 1SWASP J15133589-3725239 and 1SWASP J22310605-1940584 binary systems are respectively found to be A- and W-type W UMa systems. We derived the following masses and radii for the components of these eclipsing systems: M 1 = 2.578 M⊙, M 2 = 1.741 M⊙, R 1 = 1.113 R⊙ and R 2 = 0.928 R⊙ for 1SWASP J15133589-3725239 and M 1 = 0.743 M⊙, M 2 = 0.469 M⊙, R 1 = 0.715 R⊙ and R 2 = 0.578 R⊙ for 1SWASP J22310605-1940584. The evolutionary state of the systems is also discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b5d53bc1fdcf2fd4ed2cc95d9dd0005 https://doi.org/10.1016/j.newast.2020.101440 Zobrazit plný text záznamu Full Text from ScienceDirect