Astrophysics
Code  Completion  Credits  Range  Language 

12ASF  ZK  4  2+2  Czech 
 Garant předmětu:
 Lecturer:
 Tutor:
 Supervisor:
 Department of Laser Physics and Photonics
 Synopsis:

The lecture „Astrophysics“ is a continuation of the basic physics courses. In this relatively captivating area of physics, students will review and deepen their understanding of significant aspects of physics, such as mechanics, optics, the theory of relativity, quantum theory, radiation, and more.
 Requirements:

Passing the final exam
 Syllabus of lectures:

1.Expressing distances in space: astronomical unit, TitiusBode formula, lightyear, parsec, parallax.
2.Blackbody radiation (Planck's law, StefanBoltzmann law, Wien's law), stellar radiation; relative and absolute magnitude, HertzsprungRussell diagram.
3.Motion in a central gravitational field  Kepler's problem.
4.Elementary particles and interactions (introduction).
5.Basics of stellar physics: hydrostatic equilibrium of stars, thermonuclear reactions, energy transfer in stars, VogtRussell theorem.
6.Star formation  Jeans criterion, gravitational collapse, movement on the HertzsprungRussell diagram.
7.Final evolutionary stages of stars: white dwarfs, neutron stars (pulsars), black holes.
8.Special theory of relativity: events, Lorentz transformation, spacetime interval, world line, proper time.
9.Basic ideas of general theory of relativity, equivalence principle, local inertial frame, light in a gravitational field, geodesics, Schwarzschild metric.
10.Applications of the Schwarzschild metric: spacetime deformation in a gravitational field, time dilation in a gravitational field.
11.Motion in a gravitational field from the perspective of general theory of relativity: Euler's equation, circular orbit.
12.Introduction to cosmology: Olbers' paradox, cosmological principle, HubbleLemaitre law, cosmological redshift, Friedman's equation.
13.Geometry of the universe, FRW metric.
14.Propagation of light in an expanding universe, cosmological redshift, volume of the universe, particle horizon, inflation.
 Syllabus of tutorials:

1.Orientation in the sky: horizon and equatorial coordinates, sidereal time.
2.Gravity inside a sphere, applications: tunneling through the Earth, virial theorem.
3.Motion in a central gravitational field (examples), space velocities, travel within the solar system.
4.Particles and interactions  quark composition of composite particles, Feynman diagrams.
5.Particle collisions  examples.
6.Basics of stellar physics  examples.
7.Fundamental concepts of special theory of relativity  example: photon clocks, time dilation, length contraction.
8.Minkowski metric, applications of special theory of relativity  Doppler effect for light.
9.Applications of special theory of relativity  journey to the center of the Galaxy (interstellar travel).
10.Applications of general theory of relativity  gravitational Doppler effect, clocks on telecommunication satellites (GPS system).
11.Motion in a gravitational field from the perspective of general theory of relativity  examples: falling into a black hole, last stable orbit around a black hole, circular light orbit around a black hole.
12.Models of the universe expansion  examples of solutions to Friedman's equation.
13.Cosmology  examples.
14.Reserve.
 Study Objective:
 Study materials:

1. Bradley W. Carroll, Dale A. Ostlie , An Introduction to Modern Astrophysics, Cambridge University Press; 2nd edition, 2017
2. Andrew Liddle, An Introduction to Modern Cosmology, Wiley; 3rd edition, 2015
3. James Hartle, Gravity: An Introduction to Einstein's General Relativity, Pearson Education Limited, 2013
4. Edwin F. Taylor, John Archibald Wheeler, Exploring Black Holes: Introduction to General Relativity 1st Edition, Addison Wesley Longman; 1st edition, 2000
5. David Griffiths, Introduction to Elementary Particles, WileyVCH; 2nd edition, 2008, (chapters 1 and 2).
 Note:
 Further information:
 No timetable has been prepared for this course
 The course is a part of the following study plans:

 Fyzika a technika termojaderné fúze (elective course)