This is the reference page for information on my lecture course on Linear Perturbations and the Cosmic Microwave Background.

General information:

**Where**: Philosophenweg 12, Room R106

**When**: Tuesdays from 11.15 to 12.45. First lecture on 13rd October 2015. Calendar 2015-2016 (Winter Semester).

References:

- Cosmological perturbations: Kodama & Sasaki 1984 and Carlo Baccigalupi’s lecture notes
- CMB physics and anisotropies: Hu & Dodelson 2002
- Normal modes and Boltzmann equation: Hu & White 1997
- Experiments: lambda.gfsc.nasa.gov
- http://arxiv.org/abs/1302.4640 by J. Lesgourges
- Fluctuations in the Cosmic Microwave Background, Matthias Zaldarriaga’s Thesis

In addition see the ppt’s attached for some of the lectures.

(Preliminary) Calendar 2015-2016 (Winter Semester)

First lecture on 13rd October 2015

13.10.15 Lecture I

20.10.15 Lecture II (Linear perturbations: classification in scalar, vector, tensor perturbations and Fourier expansion of various types; gauge; gauge invariant potentials)

27.10.15: No lecture but recommended attendance at the meeting http://www.thphys.uni-heidelberg.de/~cosmo/gls15/index.html (Pedagogical lecture by Ruth Durrer on Large Scale Structure)

03.11.15 Lecture III (Horizon and evolution of the horizon; perturbed Einstein equations; perturbed conservation equations; evolution of density perturbations on super horizon scales.)

10.11.15 Lecture IV (Evolution on sub horizon scales, initial conditions and Harrison Zeldovich spectrum, Matter Power Spectrum, tensor equation).

17.11.15 Lecture V (CMB, expansion in spherical harmonics and spectra, various components before CMB transfer and impact on the spectra, Boltzmann equation (background)).

24.11.15 Exercise lecture

01.12.15 Lecture VI (Boltzmann equation (perturbations), expansion in normal modes and total angular momentum method, integral solution along the line of sight, secondary effects, polarization (start).

08.12.15 No lecture

15.12.15 Lecture VII (Polarization, experiments).

12.01.15:

19.12.15:

26.12.15: