Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007iaus..240..459u&link_type=abstract
Binary Stars as Critical Tools and Tests in Contemporary Astrophysics, International Astronomical Union. Symposium no. 240, he
Astronomy and Astrophysics
Astrophysics
Scientific paper
Possible effect of tidal and rotational oblateness of a star on the pulsational period in pulsating components of eclipsing binaries is investigated. The angle of foreshortening on the surface of the pulsating component becomes important on account of estimating local pulsating periods. By assuming the linear adiabatic radial oscillation, the pulsation period change was found between 0.947P[0] and 1.048P[0] from equator to the pole for a triaxial ellipsoid star having the axis as a=0.46, b=0.43, c=0.45 as fractional radii. This effect may not be observed due to experimental errors. It was also noted that in P [pulse].ρ^1/2 equation, the factor of Q changes from equator to pole.
Demircan Osman
Ulas Burak
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