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Revista mexicana de astronomía y astrofísica
versión impresa ISSN 0185-1101
Resumen
OZDARCAN, O. y CAKIRLI, Ö.. Four new γ Doradus variables in eclipsing binaries: revised pulsation period relations. Rev. mex. astron. astrofis [online]. 2020, vol.56, n.2, pp.321-330. Epub 24-Mar-2021. ISSN 0185-1101. https://doi.org/10.22201/ia.01851101p.2020.56.02.12.
We present photometric light curve modelling of four Kepler eclipsing binaries KIC2720354, KIC10063044, KIC11724091 and KIC8565912. The modelling results show that KIC10063044 is a semi-detached eclipsing binary, while the other systems are detached eclipsing binaries. Estimated physical parameters of these systems and residuals from the best-fitting light curve models strongly indicate γ Dor type pulsations on the primary components of the target systems. Evaluating the relations between pulsation period (Ppuls ) and orbital period (Porb ), the force exerted to per gram on the surface of the pulsating star (F/Mpuls ) and the fractional radius of the pulsating star (r), we find that linear relations on a logarithmic scale still exist, but with a smaller slope than reported in previous studies.