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

Journal of astrophysics and astronomy

Emanuele Calabrò1¹ 

[1] Department of Physics, University of Messina, Viale D’Alcontres, 31-98166, Messina, Italy.$$

关键词: Symbiotic stars;    stellar winds;    eclipse condition;    EG Andromedae.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

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.

【 授权许可】

Unknown