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Tomography of the Cosmic Dawn and Reionization Eras with Multiple Tracers

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arxiv 1903.11744 v1 pith:EVE7XGK5 submitted 2019-03-28 astro-ph.CO

Tomography of the Cosmic Dawn and Reionization Eras with Multiple Tracers

classification astro-ph.CO
keywords reionizationcosmicdawnadvocatemappingtomographyadditionalapproach
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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.

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