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Erratum: Absolute Parameters of Three F Type Southern Eclipsing Binary Stars: VW Ret, FW Vel, and CW Eri

Zasche P., Sürgit D., Erdem A., Marang F., Engelbrecht C. A.

Acta Astronomica

2024

Vol. 74, No. 3

239

In the printed version of the paper entitled "Absolute Parameters of Three F Type Southern Eclipsing Binary Stars: VW Ret, FW Vel, and CW Eri", published in Acta Astronomica, vol. 74, no. 2, p. 119, the title of Table 3 should read "RV measurements of the star CW Eri". Electronic version of the paper has already been corrected.

Absolute Parameters of Three F Type Southern Eclipsing Binary Stars: VW Ret, FW Vel, and CW Eri

Zasche P., Sürgit D., Erdem A., Marang F., Engelbrecht C. A.

Acta Astronomica

2024

Vol. 74, No. 2

113--133

This study presents the first detailed analysis of three southern eclipsing binaries. Both - light curves and radial velocity curves - were studied together with their period changes, revealing basic physical and orbital properties of these systems. All three stars, VW Ret, FW Vel, and CW Eri are detached binaries with a few days orbital period. Thanks to our detailed analysis we revealed that all the component stars are slightly heavier than the Sun, laying in the mass range between 1.3 M☉ and 1.6 M☉. The systems VW Ret, and FW Vel seem to have more dominant secondary components, both in the masses, as well as in luminosities. The system VW Ret is a triple star showing large eclipse times variations with the periodicity of 4 yr. For FW Vel a similar weak variation was also found, but with much lower amplitude of about 56 s only, needed to be independently confirmed. CW Eri shows slightly eccentric orbit (e=0.015), but only very slow apsidal motion. Moreover, its ages for both component do not agree with each other very well. Hence, it provides a challenge for future more detailed modeling of this interesting system.