Absolute parameters of southern eclipsing binary: MW Pup

D. Sürgit; A. Erdem; C. A. Engelbrecht

doi:10.1016/j.newast.2014.08.006

Absolute parameters of southern eclipsing binary: MW Pup

D. Sürgit, A. Erdem, C. A. Engelbrecht

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

This paper presents the first analysis of spectroscopic and photometric observations of the southern eclipsing binary star MW Pup. ASAS V light and SAAO radial velocity curves of the system were solved simultaneously using Wilson-Devinney code. The results describe MW Pup as an Algol-like binary star with a detached configuration. The masses of the components were found to be 2.20 ± 0.06 and 1.88 ± 0.07 M_⊙ and the radii to be 1.84 ± 0.03 and 1.72 ± 0.03 R_⊙ for primary and secondary components, respectively. The distance to MW Pup was calculated to be 430 ± 30 pc from the dynamic parallax, neglecting interstellar absorption, in agreement with the value derived from the eclipse-parallax method. The evolution of the system is also discussed. Both components are unevolved Main Sequence stars and the dynamic age of the system is estimated as 263 ± 70 My when compared to theoretical evolution models.

Original language	English
Pages (from-to)	32-35
Number of pages	4
Journal	New Astronomy
Volume	35
DOIs	https://doi.org/10.1016/j.newast.2014.08.006
Publication status	Published - Feb 2015

Keywords

Stars: binaries: eclipsing
Stars: fundamental parameters
Stars: individual (MW Pup)

ASJC Scopus subject areas

Instrumentation
Astronomy and Astrophysics
Space and Planetary Science

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10.1016/j.newast.2014.08.006

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title = "Absolute parameters of southern eclipsing binary: MW Pup",

abstract = "This paper presents the first analysis of spectroscopic and photometric observations of the southern eclipsing binary star MW Pup. ASAS V light and SAAO radial velocity curves of the system were solved simultaneously using Wilson-Devinney code. The results describe MW Pup as an Algol-like binary star with a detached configuration. The masses of the components were found to be 2.20 ± 0.06 and 1.88 ± 0.07 M⊙ and the radii to be 1.84 ± 0.03 and 1.72 ± 0.03 R⊙ for primary and secondary components, respectively. The distance to MW Pup was calculated to be 430 ± 30 pc from the dynamic parallax, neglecting interstellar absorption, in agreement with the value derived from the eclipse-parallax method. The evolution of the system is also discussed. Both components are unevolved Main Sequence stars and the dynamic age of the system is estimated as 263 ± 70 My when compared to theoretical evolution models.",

keywords = "Stars: binaries: eclipsing, Stars: fundamental parameters, Stars: individual (MW Pup)",

author = "D. S{\"u}rgit and A. Erdem and Engelbrecht, {C. A.}",

year = "2015",

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doi = "10.1016/j.newast.2014.08.006",

language = "English",

volume = "35",

pages = "32--35",

journal = "New Astronomy",

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T2 - MW Pup

AU - Sürgit, D.

AU - Erdem, A.

AU - Engelbrecht, C. A.

PY - 2015/2

Y1 - 2015/2

N2 - This paper presents the first analysis of spectroscopic and photometric observations of the southern eclipsing binary star MW Pup. ASAS V light and SAAO radial velocity curves of the system were solved simultaneously using Wilson-Devinney code. The results describe MW Pup as an Algol-like binary star with a detached configuration. The masses of the components were found to be 2.20 ± 0.06 and 1.88 ± 0.07 M⊙ and the radii to be 1.84 ± 0.03 and 1.72 ± 0.03 R⊙ for primary and secondary components, respectively. The distance to MW Pup was calculated to be 430 ± 30 pc from the dynamic parallax, neglecting interstellar absorption, in agreement with the value derived from the eclipse-parallax method. The evolution of the system is also discussed. Both components are unevolved Main Sequence stars and the dynamic age of the system is estimated as 263 ± 70 My when compared to theoretical evolution models.

AB - This paper presents the first analysis of spectroscopic and photometric observations of the southern eclipsing binary star MW Pup. ASAS V light and SAAO radial velocity curves of the system were solved simultaneously using Wilson-Devinney code. The results describe MW Pup as an Algol-like binary star with a detached configuration. The masses of the components were found to be 2.20 ± 0.06 and 1.88 ± 0.07 M⊙ and the radii to be 1.84 ± 0.03 and 1.72 ± 0.03 R⊙ for primary and secondary components, respectively. The distance to MW Pup was calculated to be 430 ± 30 pc from the dynamic parallax, neglecting interstellar absorption, in agreement with the value derived from the eclipse-parallax method. The evolution of the system is also discussed. Both components are unevolved Main Sequence stars and the dynamic age of the system is estimated as 263 ± 70 My when compared to theoretical evolution models.

KW - Stars: binaries: eclipsing

KW - Stars: fundamental parameters

KW - Stars: individual (MW Pup)

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DO - 10.1016/j.newast.2014.08.006

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VL - 35

SP - 32

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JO - New Astronomy

JF - New Astronomy

ER -

Absolute parameters of southern eclipsing binary: MW Pup

Abstract

Keywords

ASJC Scopus subject areas

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