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Polytropic models of the sun and sun-like stars /

Mohamed Sedek Abdallah Amen

Polytropic models of the sun and sun-like stars / نماذج بوليتروب للشمس و النجوم الشبيهة بالشمس Mohamed Sedek Abdallah Amen ; Supervised Magdy Yousef , Hazem Elzafarani , Hayman Zein Elabdeen - Cairo : Mohamed Sedek Abdallah Amen , 2016 - 124 P. ; 25cm

Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Astronomy and Meteorology

One of the most important contributions which stellar structure has made for equilibrium configuration is the theory of self gravitating polytrope. In this thesis, we use the standard solar model SSM of bahcall, serenelli, basu (2005) as a basic to developed a solar models in hydrostatic equilibrium expressing the physical structure of a sequence of two zones polytropes associated to the convective and radiative regions, and three zones polytropes associated to the nuclear, the radiative and the convective regions of the solar interior. We show that a composite three zones polytrope is a good representation for SSM



Composite polytrope Lane-emden Solar structure