Tomography of the Cosmic Dawn and Reionization Eras with Multiple Tracers

Abstract

The Cosmic Dawn and Reionization epochs remain a fundamental but challenging frontier of astrophysics and cosmology. We advocate a large-scale, multi-tracer approach to develop a comprehensive understanding of the physics that led to the formation and evolution of the first stars and galaxies. We highlight the line intensity mapping technique to trace the multi-phase reionization topology on large scales, and measure reionization history in detail. Besides 21cm, we advocate for Lya tomography mapping during the epoch of Wouthuysen-Field coupling as an additional probe of the cosmic dawn era.

Astro2020 Science White Paper; 5 pages, 1 figure

Cited by in corpus (5)

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• Cosmic Dawn and Reionization: Astrophysics in the Final Frontier
• The Hydrogen Mixing Portal, Its Origins, and Its Cosmological Effects