MM268  Stellar Structure and Evolution 
Teaching Staff in Charge 
Lect. GROSAN Teodor, Ph.D., tgrosanmath.ubbcluj.ro 
Aims 
The study of methods for modelling stellar structure and stellar evolution and comparision of theorethical data with observational evidence: the equation of stellar interior, evoltionary traks, the equation of relativistic stellar equilibrium, simple stellar models, observational properties of stars. The introduction of the fundamental problems of stellar atmosphere modelling and stellar stability computation.

Content 
1. Observational properties of stars:: mass, radii, temperatures, luminosity, state relations.
2. Stellar atmospheres: general structure, energy transfer. Monochromatic and integral radiation heat transfer equation. Eddington approximation. Chandrasekhar method, exact solutions. Limb darkening. Models of stellar atmosphere. 3. Stellar equilibrium equations for spherical symmetric stars. Virial theorem. Heat transfer through radiation, conduction and convection. Physical conditions in the stars. 4. Properties of the stellar matter: radiating ideal gas, state equations. Stellar mattter opacity Thermonuclear reactions and generation energy function. 5. Stellar models: polytrophic stars, isothermal stars, standard model, super massive stars, numerical models. 6. Stellar stability: characteristic time. 
References 
1. CHANDRASEKHAR, S., Intrduction to the theory of stellar structure, Boston, 1939, 1950.
2. UNSOLD, A., BASCHEK, B  Der neue Kosmos, Springer, 2002. 3. SMITH E.P., JACOBS K.C., Introductory Astronomy and Astrophysics, W.B. Saunders Company, Philadelphia, London, Toronto, 1973. 4. ZELDOVICI, Ya.B., NOVIKOV, I.D., Stars and relativity, University of Chicago Press, Chicago, 1971. 5. KIPPENHAHN, R., WEIGERT, A., Stellar Structure and Evolution, Springer  Verlag, 1990. 6.TAYLER, R.J., The Stars: their structure and evolution, Springer  Verlag, New York, 1970. 7.WEINBERG, S., Gravitation and cosmolgy, 1974. 8.MISNEV, C.W., THORNE, K.S., WHEELER, J.A., Gravitation, San Francisco, 1973. 9.URECHE, V., Universul, Vol. II, Astrofizica, ClujNapoca, 1987. 
Assessment 
Written exam: 50%
Seminar activity: 25% Research project: 25% 
Links:  Syllabus for all subjects Romanian version for this subject Rtf format for this subject 