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Matter and Radiation in the Universe

Course number: 203-2-4701
Semester: A 2020
3 points

Lecturer: Yuri Lyubarski


Course Plan

Week Topic Sources
1 Description of the radiation field: flux, intensity, photon occupation number. Blackbody radiation. Brightness temperature.
2 Opacity and emissivity. Kirchhoff law, detailed balance, Einstein coefficients.
3 Equation of radiation transfer. Optical depth. Radiation diffusion.
4 Bremsstrahlung and free-free absorption. Thomson scattering.
5 Line spectrum and basics of atomic and molecular spectroscopy. Ionization and recombination.
6 Radiation from relativistically moving sources. Synchrotron emission and absorption. Inverse Compton scattering.
7 Basics of nuclear physics: strong, weak and electromagnetic interactions; nuclear binding energy.
8 Stellar structure. Nuclear reactions in stars. Solar neutrino. Main sequence: pp and CNO cycles, mass-luminosity relation. Beyond the main sequence: helium burning and red giants.
9 Final stages of stellar evolution. Properties of degenerate matter. Chandrasekhar limit. White dwarfs, neutron stars, black holes.
10 Cosmic rays. Nuclear interaction of relativistic particles. CR diffusion in the galaxy.

Office hours

Name Day Hours Building/Room E-mail


Group What? Name Day Hours Building/Room
Lecture Yuri Lyubarsky Monday 14;00-17:00 90/141

Course Policy

A set of home assignments will be given approximately every 2-3 weeks. The grade is combined as follows: 80% based on the exam and 20% on the homework. All the works submitted by the students will be checked, so that the grade on the homework part is an average grade on all the problem solutions that have been submitted.

Additional information