Tomography of the Cosmic Dawn and Reionization Eras with Multiple Tracers

Tzu-Ching Chang (1) , Angus Beane (2) , Olivier Doré (1) , Adam Lidz (2) , Lluis Mas-Ribas (1) , Guochao Sun (3) , Marcelo Alvarez (4) , Ritoban Basu Thakur (4) , Philippe Berger (1) , Matthieu Bethermin (5) , Jamie Bock (6) , Charles M. Bradford (1) , Patrick C. Breysse (7) , Denis Burgarella (5) , Vassilis Charmandaris (8) , Yun-Ting Cheng (6) , Kieran Cleary (6) , Asantha Cooray (9) , Abigail Crites (6) , Aaron Ewall-Wice (1) , Xiaohui Fan (10) , Steve Finkelstein (11) , Steve Furlanetto (12) , Jackie Hewitt (13) , J. Hunacek (6) , Phil Korngut (6) , Ely D. Kovetz (14) , Gregg Hallinan (6) , Caroline Heneka , Guilaine Lagache (5) , Charles Lawrence (1) , Joseph Lazio (1) , Adrian Liu (15) , Daniel Marrone (10) , Aaron Parsons (4) , A. Readhead (6) , Jason D. Rhodes (1) , Dominik Riechers (16) , Michael Seiffert (1) , Gordon Stacey (16) , Eli Visbal (17) , Hao-Yi Wu (18) , Michael Zemcov , Zheng Zheng (19)

1 JPL - Jet Propulsion Laboratory
2 University of Pennsylvania
3 Caltech Department of Astronomy [Pasadena]
4 UC Berkeley - University of California [Berkeley]
5 LAM - Laboratoire d'Astrophysique de Marseille
6 CALTECH - California Institute of Technology
7 CITA - Canadian Institute for Theoretical Astrophysics
8 Institute of Theoretical and Computational Physics [Heraklion]
9 Department of Physics and Astronomy [Irvine]
10 ASU - Arizona State University [Tempe]
11 University of Texas at Austin [Austin]
12 UCLA - University of California [Los Angeles]
13 MIT - Massachusetts Institute of Technology
14 BGU - Ben-Gurion University of the Negev
15 McGill University = Université McGill [Montréal, Canada]
16 Cornell University [New York]
17 Flatiron Institute
18 OSU - Ohio State University [Columbus]
19 University of Utah

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.

Domaines: Cosmologie et astrophysique extra-galactique [astro-ph.CO]

Tzu-Ching Chang, Angus Beane, Olivier Doré, Adam Lidz, Lluis Mas-Ribas, et al.. Tomography of the Cosmic Dawn and Reionization Eras with Multiple Tracers. 2019. ⟨hal-02176467⟩