000002338 001__ 2338
000002338 005__ 20160701171704.0
000002338 0247_ $$2DOI$$a10.1007/s10509-008-9945-x
000002338 037__ $$aASTROimport-495
000002338 100__ $$aUlas, B.
000002338 245__ $$aThe Algol-type eclipsing binaries RW CrB and VZ Leo: new RI photometric study and search for pulsations
000002338 260__ $$c2009
000002338 520__ $$aIn this study we present the new R and I light curve solutions for the eclipsing binary systems RW CrB and VZ Leo, which for VZ Leo is the first one in the literature. Our new observations have been analyzed using the Wilson-Devinney code from which new geometric and photometric elements are derived. The geometry of both stars is that of a semi-detached binary system where the secondary component fills its Roche lobe while the primary component is well inside. In the case of RW CrB, asymmetry in the light curve was explained by a spot model. The orbital period changes of both systems were studied and the results indicated a period decrease which can be explained by angular momentum loss. We also investigated the possibility of pulsations of the primary components since these systems are mentioned as candidates of δ Sct type pulsation. However, a time-series analysis of the residual curves in the filter I does not indicate any evidence of periodic light variation for both systems. Finally, we compared the results obtained for both binary stars to those of similar systems. 
000002338 700__ $$a Niarchos, P. G.
000002338 700__ $$a Lampens, P.
000002338 700__ $$a Liakos, A.
000002338 773__ $$c55-62$$i1$$pAstrophysics and Space Science$$v319$$y2009
000002338 85642 $$ahttp://esoads.eso.org/abs/2009Ap%26SS.319...55U
000002338 905__ $$apublished in
000002338 980__ $$aREFERD