• Interacting Winds in Eclipsing Symbiotic Systems – The Case Study of EG Andromedae

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      https://www.ias.ac.in/article/fulltext/joaa/035/01/0069-0085

    • Keywords

       

      Symbiotic stars; stellar winds; eclipse condition; EG Andromedae.

    • Abstract

       

      We report the mathematical representation of the so called eccentric eclipse model, whose numerical solutions can be used to obtain the physical parameters of a quiescent eclipsing symbiotic system. Indeed the nebular region produced by the collision of the stellar winds should be shifted to the orbital axis because of the orbital motion of the system. This mechanism is not negligible, and it led us to modify the classical concept of an eclipse. The orbital elements obtained from spectroscopy and photometry of the symbiotic EG Andromedae were used to test the eccentric eclipse model. Consistent values for the unknown orbital elements of this symbiotic were obtained. The physical parameters are in agreement with those obtained by means of other simulations for this system.

    • Author Affiliations

       

      Emanuele Calabrò1

      1. Department of Physics, University of Messina, Viale D’Alcontres, 31-98166, Messina, Italy.
    • Dates

       
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