A Short Introduction to Reionization Physics
Tirthankar Roy Choudhury
TL;DR
This paper provides an overview of the physics of the epoch of reionization, highlighting its significance in understanding the early universe and discussing observational strategies with modern telescopes.
Contribution
It offers a concise introduction to reionization physics and summarizes methods for analyzing high-redshift universe observations.
Findings
Reionization marks the universe's transition from neutral to ionized.
Multiple telescopes across wavebands are used to study reionization.
Understanding reionization is key to probing the universe's first stars.
Abstract
The epoch of reionization probes the state of our universe when the very first stars formed and ionized the hydrogen atoms in the surrounding medium. Since the epoch has not yet been probed observationally, it is often called the "final frontier" of observational cosmology. This final frontier is attracting a lot of attention because of the availability of a large number of telescopes in a wide variety of wavebands. This review article summarizes some of the concepts required to understand the interesting physics of reionization and how to analyze the high-redshift universe using related observations.
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