Photometric Study and Search for Pulsations in RZ Dra and EG Cep

Details Photometric Study and Search for Pulsations in RZ Dra and EG Cep Photometric Study and Search for Pulsations in RZ Dra and EG Cep

2009-10-15

arxiv.org/abs/0910.2953v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

4 pages, 4 figures, contribution to the conference proceedings: Binaries - Key to Comprehension of the Universe, Brno, Czech R

Scientific paper

This paper presents CCD observations of the Algol-type eclipsing binaries RZ Dra and EG Cep. The light curves have been analyzed with the PHOEBE software and Wilson-Devinney code (2003 version). A detailed photometric analysis, based on these observations, is presented for both binarity and pulsation. The results indicate semidetached systems where the secondary component fills its Roche lobe. After the subtraction of the theoretical light curve, a frequency analysis was performed in order to check for pulsations of the primary component of each system. Moreover, a period analysis was performed for each case in order to search for additional components around the eclipsing pairs.

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