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Reanalysis of two eclipsing binaries: EE Aqr and Z Vul

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Abstract

We study the radial-velocity and light curves of the two eclipsing binaries EE Aqr and Z Vul. Using the latest version of the Wilson and Van Hamme (Computing Binary Star Observables, 2003) model, absolute parameters for the systems are determined. We find that EE Aqr and Z Vul are near-contact and semi-detached systems, respectively. The primary component of EE Aqr fills about 96% of its ‘Roche lobe’, while its secondary one appears close to completely filling this limiting volume. In a similar way, we find fill-out proportions of about 72 and 100% of these volumes for the primary and secondary components of Z Vul respectively. We compare our results with those of previous authors.

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Authors and Affiliations

  1. Department of Physics, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran

    S. M. R. Ghoreyshi

  2. Department of Physics and Astronomy, San Francisco State University, 1600 Holloway, San Francisco, CA, 94132, USA

    J. Ghanbari

  3. Department of Physics, Khayyam Institute of Higher Education, Mashhad, Iran

    F. Salehi

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  1. S. M. R. Ghoreyshi
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  2. J. Ghanbari
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  3. F. Salehi
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Correspondence to S. M. R. Ghoreyshi.

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Ghoreyshi, S.M.R., Ghanbari, J. & Salehi, F. Reanalysis of two eclipsing binaries: EE Aqr and Z Vul . Astrophys Space Sci 314, 331–340 (2008). https://doi.org/10.1007/s10509-008-9774-y

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  • DOI: https://doi.org/10.1007/s10509-008-9774-y

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