English

Astrophysics from the 21-cm background

Cosmology and Nongalactic Astrophysics 2019-09-30 v1

Abstract

This chapter describes the astrophysics encoded by the 21-cm background. We begin with a brief introduction to the radiative transfer and ionization chemistry relevant to the high-z intergalactic medium. Then, we will provide a review of the most plausible sources of ionization and heating in the early Universe. Finally, we will explore a variety of current 21-cm predictions, and illustrate the sensitivity of the global 21-cm signal and power spectrum to parameters of interest.

Keywords

Cite

@article{arxiv.1909.12595,
  title  = {Astrophysics from the 21-cm background},
  author = {Jordan Mirocha},
  journal= {arXiv preprint arXiv:1909.12595},
  year   = {2019}
}

Comments

To appear as a book chapter in "The Cosmic 21-cm Revolution: Charting the first billion years of our Universe", Ed Andrei Mesinger (Bristol: IOP Publishing Ltd) AAS-IOP ebooks http://www.iopscience.org/books/aas

R2 v1 2026-06-23T11:27:58.135Z