Mapping Cosmic Dawn and Reionization: Challenges and Synergies
Abstract
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.
Keywords
Cite
@article{arxiv.1903.04580,
title = {Mapping Cosmic Dawn and Reionization: Challenges and Synergies},
author = {Marcelo A. Alvarez and Anastasia Fialkov and Paul La Plante and James Aguirre and Yacine Ali-Haïmoud and George Becker and Judd Bowman and Patrick Breysse and Volker Bromm and Philip Bull and Jack Burns and Nico Cappelluti and Isabella Carucci and Tzu-Ching Chang and Kieran Cleary and Asantha Cooray and Xuelei Chen and Hsin Chiang and Joanne Cohn and David DeBoer and Joshua Dillon and Olivier Doré and Cora Dvorkin and Simone Ferraro and Steven Furlanetto and Bryna Hazelton and J. Colin Hill and Daniel Jacobs and Kirit Karkare and Garrett K. Keating and Léon Koopmans and Ely Kovetz and Adam Lidz and Adrian Liu and Yin-Zhe Ma and Yi Mao and Kiyoshi Masui and Matthew McQuinn and Jordan Mirocha and Julian Muñoz and Steven Murray and Aaron Parsons and Jonathan Pober and Benjamin Saliwanchik and Jonathan Sievers and Nithyanandan Thyagarajan and Hy Trac and Alexey Vikhlinin and Eli Visbal and Matias Zaldarriaga},
journal= {arXiv preprint arXiv:1903.04580},
year = {2019}
}
Comments
5 pages, 1 figure, submitted to the Astro2020 Decadal Survey Science White Paper call