Four new γ Doradus variables in eclipsing binaries: revised pulsation period relations
ABSTRACT 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.
| Main Authors: | , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Universidad Nacional Autónoma de México, Instituto de Astronomía
2020
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| Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0185-11012020000200321 |
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