Description of Individual Course Units
Course Unit CodeCourse Unit TitleType of Course UnitYear of StudySemesterNumber of ECTS Credits
9101015192004Dynamics of Close Binary StarsElective118
Level of Course Unit
Second Cycle
Objectives of the Course
The aim of the course is to make students to be able to explicate the existing knowledge of the theory of dynamical phenomena exhibited by close binary systems, comprehensively; able to comprehend the role of these dynamical phenomena in the evolution of binary stars; able to determine the observational implications of them; able to interrogate compatibility of existing observations with the evolution track of such systems.
Name of Lecturer(s)
Prof.Dr.Ömer Lütfi Değirmenci
Learning Outcomes
1Able to investigate the close binary systems dynamically in a comprehensive manner
2Able to comprehend the processes that satisfy the equilibrium in close binary stars in detail
3Able to examine the mathematical equations describing the dynamical tides in a comprehensive manner
4Able to explicate the effects of dynamical processes exhibited by close binary systems to their evolution
5Able to explicate the effects of dynamical properties of close binary systems to their geometry
Mode of Delivery
Face to Face
Prerequisites and co-requisities
None
Recommended Optional Programme Components
None
Course Contents
Binary stars in the sky, Figures of Equilibrium: Equipotential surfaces, Rotational distortion, Tidal distortion, Interaction between rotation and tides, Effects of internal structure, Gravity, Density distribution and moments of inertia, Dynamical tides: Equations of the problem, Linearized equations, Forced Oscillations: Dynamical tides, Dissipation of energy by dynamical tides, Generalized rotation: Equations of motion for deformable bodies, Rotation of deformable bodies, Effects of viscosity, Nonuniform rotation, Dynamics of close binary systems: Equations of the problem, Perturbations of the orbital planes, Perturbations in the ortbital planes, Period changes in eclipsing binary systems, Effects of variable mass, Perturbations by e third body, Long-range perturbations, The Roche model: Roche equipotentials, Geometry of Roche surfaces, The Roche coordinates, Stability of the components of close binary systems: Criteria of stability, Secular stability, Dynamical stability, Origin and evolution of binary stars, Evolution of stars, Classification of close binary systems, Nuclear evolution of close binary systems, Tidal evolution of close binary systems, Beginnings and Ends
Weekly Detailed Course Contents
WeekTheoreticalPracticeLaboratory
1Binary stars in the sky, Figures of Equilibrium: Equipotential surfaces
2Rotational distortion, Tidal distortion, Interaction between rotation and tides
3Effects of internal structure, Gravity, Density distribution and moments of inertia
4Dynamical tides: Equations of the problem, Linearized equations
5Forced Oscillations: Dynamical tides, Dissipation of energy by dynamical tides
6Generalized rotation: Equations of motion for deformable bodies, Rotation of deformable bodies
7Effects of viscosity, Nonuniform rotation
8Midterm examination
9Dynamics of close binary systems: Equations of the problem, Perturbations of the orbital planes, Perturbations in the ortbital planes
10Period changes in eclipsing binary systems, Effects of variable mass
11Perturbations by e third body, Long-range perturbations
12The Roche model: Roche equipotentials, Geometry of Roche surfaces, The Roche coordinates
13Stability of the components of close binary systems: Criteria of stability, Secular stability, Dynamical stability
14Origin and evolution of binary stars, Evolution of stars, Classification of close binary systems
15Nuclear evolution of close binary systems, Tidal evolution of close binary systems, Beginnings and Ends
16Final examination
Recommended or Required Reading
COURSE BOOK(S): Kopal, Z., Dynamics of Close Binary Systems, Edited by J.E. Blamont, Kluwer Language of Science, Published by D.Reidel Publishing Company, P.O.Box 17, Dordrecht, Holland
Planned Learning Activities and Teaching Methods
Assessment Methods and Criteria
Term (or Year) Learning ActivitiesQuantityWeight
SUM0
End Of Term (or Year) Learning ActivitiesQuantityWeight
SUM0
SUM0
Language of Instruction
Turkish
Work Placement(s)
None
Workload Calculation
ActivitiesNumberTime (hours)Total Work Load (hours)
Midterm Examination122
Final Examination122
Seminar22040
Criticising Paper815120
Individual Study for Mid term Examination12525
Individual Study for Final Examination14040
TOTAL WORKLOAD (hours)229
Contribution of Learning Outcomes to Programme Outcomes
PO
1
PO
2
PO
3
PO
4
PO
5
PO
6
PO
7
PO
8
PO
9
PO
10
PO
11
LO1454 4   3 3
LO2453 3   3 3
LO3553 4   3 3
LO4454 3   3 3
LO5553 4   3 3
* Contribution Level : 1 Very low 2 Low 3 Medium 4 High 5 Very High
 
Ege University, Bornova - İzmir / TURKEY • Phone: +90 232 311 10 10 • e-mail: intrec@mail.ege.edu.tr