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Mapping Cosmic Dawn and Reionization: Challenges and Synergies

Alvarez, Marcelo A. and Fialkov, Anastasia and La Plante, Paul and Aguirre, James and Ali-Haïmoud, Yacine and Becker, George and Bowman, Judd and Breysse, Patrick and Bromm, Volker and Bull, Philip and Burns, Jack and Cappelluti, Nico and Carucci, Isabella and Chang, Tzu-Ching and Cleary, Kieran and Cooray, Asantha and Chen, Xuelei and Chiang, Hsin and Cohn, Joanne and DeBoer, David and Dillon, Joshua and Doré, Olivier and Dvorkin, Cora and Ferraro, Simone and Furlanetto, Steven and Hazelton, Bryna and Hill, J. Colin and Jacobs, Daniel and Karkare, Kirit and Keating, Garrett K. and Koopmans, Léon and Kovetz, Ely and Lidz, Adam and Liu, Adrian and Ma, Yin-Zhe and Mao, Yi and Masui, Kiyoshi and McQuinn, Matthew and Mirocha, Jordan and Muñoz, Julian and Murray, Steven and Parsons, Aaron and Pober, Jonathan and Saliwanchik, Benjamin and Sievers, Jonathan and Thyagarajan, Nithyanandan and Trac, Hy and Vikhlinin, Alexey and Visbal, Eli and Zaldarriaga, Matias (2019) Mapping Cosmic Dawn and Reionization: Challenges and Synergies. Astro2020 Science White Paper, . (Unpublished)

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Cosmic dawn and the Epoch of Reionization (EoR) are among the least explored observational eras in cosmology: a time at which the first galaxies and supermassive black holes formed and reionized the cold, neutral Universe of the post-recombination era. With current instruments, only a handful of the brightest galaxies and quasars from that time are detectable as individual objects, due to their extreme distances. Fortunately, a multitude of multi-wavelength intensity mapping measurements, ranging from the redshifted 21 cm background in the radio to the unresolved X-ray background, contain a plethora of synergistic information about this elusive era. The coming decade will likely see direct detections of inhomogenous reionization with CMB and 21 cm observations, and a slew of other probes covering overlapping areas and complementary physical processes will provide crucial additional information and cross-validation. To maximize scientific discovery and return on investment, coordinated survey planning and joint data analysis should be a high priority, closely coupled to computational models and theoretical predictions.

Item Type:Report or Paper (White Paper)
Related URLs:
URLURL TypeDescription Paper
Aguirre, James0000-0002-4810-666X
Cooray, Asantha0000-0002-3892-0190
Doré, Olivier0000-0002-5009-7563
Furlanetto, Steven0000-0002-0658-1243
Jacobs, Daniel0000-0002-6267-9827
Karkare, Kirit0000-0002-5215-6993
Koopmans, Léon0000-0003-1840-0312
Muñoz, Julian0000-0002-8984-0465
Series Name:Astro2020 Science White Paper
Record Number:CaltechAUTHORS:20190925-155914002
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98864
Deposited By: Tony Diaz
Deposited On:25 Sep 2019 23:14
Last Modified:09 Mar 2020 13:19

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