Introduction to Theoretical Astrophysics

Introduction to Theoretical Astrophysics

The course is taught in English by
Gabriel Martínez-Pinedo, Tel. 06159 71 2750, gabriel.martinez at physik.tu-..., Schlossgartenstraße 2, room 304
Exercises: Justin Schäfer, Tel. 06159 71 3558, justin.schaefer at tu-darmstadt.de, Schlossgartenstraße 2, room 04

Outline

This course covers the basic techniques and methods used in modern theoretical astrophysics and deals with a broad range of topics related to stars, galaxies and the universe.

Main topics include:

  1. Course description
  2. Introduction
  3. Properties of stars (Slides, Notes)
    Additional material:
    • Physical constants, Astrophysical constants
    • Blackbody curves & UBV Filters: This is an interactive interface where you can see how the blackbody Planck distribution changes as a function of temperature and the effect of different filters.
    • Hydrogen Energy Levels: Here you can get insight in the energy levels of hydrogen and the population of the different levels with temprature.
    • Eclipsing Binary: Explore the orbits of two eclipsing binaries and how the emitted light changes with the phase of the orbit.
    • Hertzsprung-Russell Diagram: Here you can explore where a star will appear in the Hertzsprung-Russell diagram depending on its luminosity and temperature.
    • Gaia Sky: Open source 3D Universe visualization platform using the Gaia star catalog.
  4. Stellar Structure
  5. Equation of state (slides)
    The material of the two previous lectures is covered on these notes. The notes also introduce the basic equations of radiation transport.
  6. Energy transport (notes,slides)
    Roger Balian and Jean-Paul Blaizot, Stars and statistical physics: A teaching experience (article discussing many of the aspects introduced in the previous lectures)
  7. Simple stellar models (notes)
    Lane-Endem Wolfram Demonstration Project (Slightly Modified version from the project available here)
  8. The Insterstellar Medium and Star Formation (Slides,Notes)
  9. Stellar evolution and supernova explosions
    S. Woosley and H.-Th. Janka, The physics of core-collapse supernovae
  10. The degenerate remnants of stars (Slides,Notes)
    Richard R. Silbar and Sanjay Reddy, Neutron stars for undergraduates,Erratum (article discussing several aspects of the lecture and their extension to neutron stars)
    Mathematica notebook computing the structure of White Dwarfs and Neutron stars (Notebook, pdf)
  11. The Milky Way
  12. The Nature and Evolution of Galaxies
  13. Active Galaxies and the Structure of the universe
    Excercise Sheet 6
  14. Cosmological models (Notes, Slides)
    Excercise Sheet 7
  15. Evolution of the Universe (Notes, Slides)
    The values of the cosmological parameters used in the lecture have been obtained from this recent paper of the Planck collaboration: Planck 2015 results. XIII. Cosmological parameters. In some cases values listed in the astrophyscial constants from the particle data group are used.
  16. Observational cosmology (Notes, Slides)
    Charles L. Bennett, Cosmology from start to finish (Nice article providing a summary of the main cosmological topics discussed in the lectures)
    Tutorials by Wayne Hu discussing different aspects of Cosmic Microwave Background Anisotropies

Bibliography

Recommended web addresses

  • An online introduction to basic astronomical concepts can be found at Astronomy Notes
  • Astronomy Picture of the Day: Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
  • Open Astrophysics Bookshelf: A collection of open-licensed, freely available texts on various topics in astrophysics
  • MESA (Modules for Experiments in Stellar Astrophysics): An open-source stellar structure and evolution code that is modular and accessible