Now showing items 1-6 of 6
An investigation of the tidally driven period changes in detached binary systems through O – C time series analysis: the case of RT And and WY Cnc
(Taylor & Francis Group, 2007)
Detached binary systems are subjected to a variety of physical mechanisms which are able to change their period in a continuous way and in a broad band of timescales. Assuming that these changes should be detectable in O–C ...
Period Study of the Contact Binary AW UMa
The orbital period changes of the contact binary AW UMa are investigated, and a secular period decrease of the order of −2.0 × 10−2 s y−1 was detected. It was found that the wave-like shape of the observed period changes ...
On the origin of the orbital period changes of V523 Cas
The orbital period changes of V523 Cas were studied based on observational material covering almost a century. Two periodic terms of 99 y and of 33 y were detected, as well as a long-period increase of the order of 3.01 x ...
Temperature Gradient in Close Binary Systems
(American Institute of Physics, 2006-09-27)
The influence of the gravity darkening effect in the formation of a non iso‐thermal photosphere on close binary stars is presented. Furthermore, a theoretical model that describes thermal differences on the stars’ surfaces, ...
Influence of spots on O-C diagrams of close eclipsing binary stars
The influence of dark spots in close eclipsing binaries is examined. We show that the O'Connell efect is much greater if the spot lies on the primary component. It is also shown that this phase shift is not capable of ...