Infopaket

Variable stars

OK9

Обов’язкова дисципліна для ОП

Second

2023/2024

1 Semester

3

1. Knowledge and understanding • Classification of variable stars: Identification of the main types of variable stars: pulsating (Cepheids, RR Lyrae, long-period variables, etc.), cataclysmic (novae, dwarf novae, supernovae), eclipsing systems, eruptive variables. In-depth understanding of the physical processes that cause variability in stellar radiation. • Principles of photometric observations, construction of light curves of variable stars. Knowledge of the spectral characteristics of variable stars and their relationship to evolution. 2. Skills Determination of variability periods using real observations and analysis methods, such as the Fourier method or the composite curve method. • Use of modern databases: Analysis of data from international variable star databases, such as AAVSO, OGLE, Gaia. Interpretation of observational results in the light of stellar evolutionary models.

Full-time form

The presentation of the material is based on basic mathematical and physical courses, as well as courses in general and theoretical astrophysics, extragalactic astronomy. When studying this discipline, the knowledge acquired in the previously studied courses “General Astrophysics” (3rd year, 6th semester) and “Theoretical Astrophysics” (4th year, 8th semester) is used. Possess elementary skills in calculating derivatives, integrals, actions and operations with vectors and tensors, and construct graphs of functions

Fundamentals of the theory of dynamical systems. Eclipsing stars. Pulsating stars. Eruptive stars.

Chabrier G. Structure formation in astrophysics. Cambridge university press. 2009. Longair M.S. Galaxy formation. Springer. 2008. Mo H., van den Bosch F., White S. Galaxy formation and evolution. Cambridge university press. 2010. Spinrad H. Galaxy formation and evolution. Springer. 2005. Keel W.C. The road to galaxy formation. Springer. 2007. Mobberley M. Cataclysmic cosmic events. Springer. 2009. Wheeler J.C. Cosmic catastrophes. Cambridge university press. 2007.

Lectures

Control is carried out according to the modular rating system, which consists of 2 content modules. The knowledge assessment system includes current, modular and semester control of knowledge. The results of students' educational activities are assessed on a 100-point scale. Forms of current control: assessment of homework, written independent tasks, tests and tests performed by students during practical classes. A student can receive a maximum of 10 points for completing homework, independent tasks, oral answers, tests, and additions. Modular control: 2 modular tests. A student can receive a maximum of 30 points for modular tests (15 points for each work). Final semester control is carried out in the form of a credit (60 points).

Ukrainian