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Orbital Solutions and Absolute Elements of the Eclipsing Binary AY Camelopardalis

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Richard M. Williamon1, James R. Sowell2 and Walter Van Hamme3

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New differential UBV photoelectric photometry for the eclipsing binary AY Cam is presented. The Wilson-Devinney program is used to simultaneously solve the three light curves together with previously published radial velocities. We determine absolute dimensions and estimate the age of the system. AY Cam is a detached binary consisting of two stars on the main sequence but evolved beyond their respective main-sequence life midpoints. As expected, the more massive star is the most evolved and about 145 K cooler than its less massive companion. We determine color indexes for the two stars and estimate color excesses.


Keywords

binaries: close; binaries: eclipsing; binaries: spectroscopic


Dates

Issue 3 (2004 September)

Received 2004 May 6, accepted for publication 2004 May 27



  1. Orbital Solutions and Absolute Elements of the Eclipsing Binary AY Camelopardalis

    Richard M. Williamon et al. 2004 The Astronomical Journal 128 1319

  2. HD 71636, A Newly Discovered Eclipsing Binary

    Gregory W. Henry et al. 2006 The Astronomical Journal 132 2489

  3. The Eclipsing Binary System AR Monocerotis

    Richard M. Williamon et al. 2005 The Astronomical Journal 129 2798

  4. ΛCDM-based Models for the Milky Way and M31. I. Dynamical Models

    Anatoly Klypin et al. 2002 ApJ 573 597

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