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Last update: T_AUUK (30.03.2015)
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Last update: doc. RNDr. Petr Zasche, Ph.D. (10.06.2019)
Oral exam. |
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Last update: T_AUUK (30.03.2015)
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Last update: T_AUUK (31.03.2008)
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Last update: doc. RNDr. Petr Zasche, Ph.D. (08.01.2019)
The role of binaries for astrophysics. The range of observed physical properties and various types of classification of binaries. Basic elements describing the binary orbit. Roche model. Determination of times of minima or maxima, the O-C diagrams, changes of the orbital period. Analysis of radial-velocity curves for double-line and single-line binaries. Types of light curves and basic principles of the light-curve solutions. Visual binaries and triple systems. The Light-time effect, dynamical effects. Manifestations of the apsidal motion, sideric, anomalistic and apsidal periods. Deformations of the radial-velocity and light curves due to the presence of circumstellar matter in the system. Observed phenomenological types of binaries. Early and late evolutionary stages. Contemporary theories of the origin of binaries and multiples, statistics of binaries in stellar population. |