Aim of the course: This course intends to give the students a modern and uptodate introduction to the science and experimental techniques relating to the Cosmic Microwave Background (CMB). No prior knowledge of cosmology is assumed; rather, the course introduces the necessary concepts in the class, and partly depends on the mandatory cosmology course that is taught in parallel. The aim is to make the students interested in the vast field of CMB research, which continues to be one of the richest sources of information about our Universe.

Requirements: Some basic knowledge of electrodynamics and thermal physics, and some experience with Python programming. No prior coursework on cosmology is necessary.

Contents of the course: Roughly 13 lectures, covering the four main topics of (i) CMB thermal spectrum, (ii) CMB temperature anisotropies and their cosmological significance, (iii) CMB polarization and the search for primordial gravitational waves, and (iv) CMB foregrounds and component separation techniques. There will be weekly exercise classes, some of which involve simple programming and plotting.

Day and time: 
Mondays, 9:15 − 10:45 AM 
Place: 
AIfA Lecture Hall 0.006 
Lecturer: 
Kaustuv Basu (AIfA room #1.006, kbasu@unibonn.de) 
Contents (à la WS202223):
Date 
Topic 
Lecture slides 

10.10.22 
Introduction and the history of CMB’s discovery 

17.10.22 
CMB thermal spectrum I (blackbody spectrum, mu and y distortions) 

24.10.22 
CMB thermal spectrum II (recombination and decoupling) 

07.11.22 
CMB angular power spectrum I (statistical methodology) 

14.11.22 
CMB angular power spectrum II (physical processes) 

21.11.22 
CMB angular power spectrum III (constraining cosmology parameters) 

28.11.22 
CMB polarization I (physical concepts, E and B modes) 


05.12.22 
CMB polarization II (imprint of gravitational waves) 


12.12.22 
CMB foregrounds and component separation 


19.12.22 
CMB anomalies, CMB detectors and experiments 


09.01.23 
CMB secondary anisotropies I: Gravitational lensing 


16.01.23 
CMB secondary anisotropies II: SunyaevZeldovich (SZ) effect 


23.01.23 
CMB secondary anisotropies III: SZ science of galaxy clusters 

(This script is
distributed freely, but is not complete yet. If
you find any mistakes, please email kbasu@astro.unibonn.de)
