Photometric and spectroscopic investigation of the oscillating Algol type binary: EW Boo |
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| Institution: | 1. Center of Advanced Study, Department of Physics, Kumaun University, Nainital 263002, India;2. Aryabhatta Research Institute of Observational Sciences, Nainital 263002, India;3. Department of Physics, Hemwati Nandan Bahuguna Govt. P.G. College, Khatima 262308, Uttarakhand, India;1. Computer Technology Application Key Lab of Yunnan Province, Kunming University of Science and Technology, Chenggong, Kunming 650500, China;2. Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China;3. University of Chinese Academy of Sciences, Beijing 100049, China;1. INAF Astronomical Observatory of Padova, via dell’Osservatorio 8, 36012 Asiago (VI), Italy;2. ANS Collaboration, c/o Astronomical Observatory, 36012 Asiago (VI), Italy;1. Department of Cardiovascular and Thoracic Surgery, University of Louisville, Louisville, Kentucky;3. Division of Cardiovascular Medicine, University of Louisville, Louisville, Kentucky;2. Center for Advanced Heart Failure and Department of Cardiothoracic and Vascular Surgery, University of Texas – Houston McGovern Medical School, Houston, Texas |
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| Abstract: | We obtained the physical and geometrical parameters of the EW Boo system, which exhibits short period and small amplitude pulsations as well as brightness variations due to orbital motion of components. Towards this end we carried out photometric observations at Ankara University Kreiken Observatory (AUKO) as well as spectroscopic observations at TUBITAK National Observatory (TNO). The light and radial velocity curves obtained from these observations have been simultaneously analyzed with PHOEBE and the absolute parameters of the system along with the geometric parameters of the components have been determined. Using model light curves of EW Boo, light curve regions in which the pulsations are active have been determined and as a result of analyses performed in the frequency region, characteristic parameters of pulsations have been obtained. We find that the results are compatible with current parameters of similar systems in the literature. The evolutionary status of the components is propounded and discussed. |
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| Keywords: | Stars: binaries: eclipsing Stars: individual (EW Boo) Technique: photometry Technique: spectroscopy |
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