Friday 10 October - Saleem Zaroubi - Exploring the First Billion Years with 21 cm line [Lecture 2]

The course will review the current status of exploring the first billion years of cosmological evolution using the redshifted 21 cm line, which requires very low-frequency radio observations. It will start with presenting the physics of the 21 cm line and its connection to the physical properties of the intergalactic medium. Then, we will define the three eras of the first billion years (The Dark Ages, Cosmic Dawn, and Epoch of Reionization) in terms of redshifted 21 cm observable. The topology and evolution of the redshifted 21 cm signal will be discussed. The relationship between such topologies and cosmological and structure formation models will be presented. The course will then focus on the observational status of the field and the various projects that are currently running or planned for the near future. The course will show the latest results from these experiments. The course will end with a discussion of the future prospects of the field.

Lecture 2 : The Redshifted 21 cm Cosmological Probe: Observation and Interpretation

Chapter 5 – The current observational effort and its various strategies
Chapter 6 – The main Observational and data analysis challenges
Chapter 7 – Recent results and their implications
Chapter 8 – Future prospects of the field