Study Programmes 2017-2018
SPAT0044-1  
Stellar structure and evolution I
Duration :
20h Th, 20h Pr
Number of credits :
Master in mathematics (120 ECTS)4
Master in space sciences (120 ECTS)3
Master in mathematics (60 ECTS)4
Lecturer :
Marc-Antoine Dupret
Language(s) of instruction :
English language
Organisation and examination :
Teaching in the first semester, examination in June
Units courses prerequisite and corequisite :
Prerequisite or corequisite units are presented within each program
Learning unit contents :
The two courses Stellar Structure and Evolution I and II provide a detailed picture of the theory of stellar structure and evolution. It is strongly recommended to follow the two parts during the same academic year. In the first part, the basic processes acting in stellar interiors are explained. In the second part, the evolution of stars from their birth to their ultimate sometimes dramatic fate can be detailed, thanks to the theoretical background established in the first part. After a general introduction to the world of stars, their state of hydrostatic and sometimes thermal equilibrium, as well as the energy transport processes are put in equations and detailed. Basic aspects of statistical physics allow us to consider in detail the degenerate condition of the electron gas in dense stellar interiors, which plays a key role in stellar evolution. Recalls of nuclear physics are made and followed by a study of the different thermonuclear reactions playing a role during a stellar "life". The main interaction processes between matter and radiation are also examined. A detailed analysis of self-gravitating polytropic gaseous spheres (simplified models of stars) leads us to the notions of limiting mass and mass-radius relation of white dwarfs, which significantly impact stellar evolution (second part).
Learning outcomes of the learning unit :
Knowledge and understanding of the physical conditions of stellar interiors. Link with the different domains of physics.
Prerequisite knowledge and skills :
Basic notions in fluid mechanics, quantum physics, statistical physics and thermodynamics.
This course has no co-required.
Planned learning activities and teaching methods :
Mode of delivery (face-to-face ; distance-learning) :
The lectures are given first semester, 2h15/week.
From the academic year 2016-2017, the lectures are given in English if there is at least one student attending the lectures who does not speak French. If all students speak French, the lectures are given in French.
Recommended or required readings :
Detailed lecture notes are available to students as well as the powerpoint slides of the lectures.
The students can find them on my web site: http://www.astro.ulg.ac.be/~dupret
Assessment methods and criteria :
A list of possible questions covering the most important aspects of the course is provided (and commented) at the end of the semester. The student must answer one of them (drawn randomly) during the oral exam, he can choose to answer in English or French.
Work placement(s) :
Organizational remarks :
Contacts :
email: MA.Dupret@ulg.ac.be
address: Institut d'Astrophysique et Géophysique, bât. B5c, +1
Tél: 04 366 97 32
Items online :
Structure et évolution des étoiles I powerpoint
Structure et évolution des étoiles I powerpoint
Structure et évolution des étoiles syllabus
Structure et évolution des étoiles syllabus parties I et II