Astro2020 Science White Paper: First Stars and Black Holes at Cosmic Dawn with Redshifted 21-cm Observations

The "cosmic dawn" refers to the period of the Universe's history when stars and black holes first formed and began heating and ionizing hydrogen in the intergalactic medium (IGM). Though exceedingly difficult to detect directly, the first stars and black holes can be constrained indir...

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Published in:arXiv.org 2019-03
Main Authors: Jordan Mirocha, Jacobs, Daniel, Dillon, Josh, Furlanetto, Steve, Pober, Jonathan, Liu, Adrian, Aguirre, James, Ali-Haïmoud, Yacine, Alvarez, Marcelo, Beardsley, Adam, Becker, George, Bowman, Judd, Breysse, Patrick, Bromm, Volker, Burns, Jack, Chen, Xuelei, Chang, Tzu-Ching, Chiang, Hsin, Cohn, Joanne, DeBoer, David, Dvorkin, Cora, Fialkov, Anastasia, Gnedin, Nick, Hazelton, Bryna, Masui Kiyoshi, Kohn, Saul, Koopmans, Leon, Kovetz, Ely, Paul La Plante, Lidz, Adam, Yin-Zhe, Ma, Mao, Yi, Mesinger, Andrei, Muñoz, Julian, Murray, Steven, Parsons, Aaron, Pritchard, Jonathan, Sievers, Jonathan, Switzer, Eric, Thyagarajan, Nithyanandan, Visbal, Eli, Zaldarriaga, Matias
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Language:English
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Intergalactic media
Ionization
Stars
Stellar evolution
Universe
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container_title arXiv.org
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creator Jordan Mirocha
Jacobs, Daniel
Dillon, Josh
Furlanetto, Steve
Pober, Jonathan
Liu, Adrian
Aguirre, James
Ali-Haïmoud, Yacine
Alvarez, Marcelo
Beardsley, Adam
Becker, George
Bowman, Judd
Breysse, Patrick
Bromm, Volker
Burns, Jack
Chen, Xuelei
Chang, Tzu-Ching
Chiang, Hsin
Cohn, Joanne
DeBoer, David
Dvorkin, Cora
Fialkov, Anastasia
Gnedin, Nick
Hazelton, Bryna
Masui Kiyoshi
Kohn, Saul
Koopmans, Leon
Kovetz, Ely
Paul La Plante
Lidz, Adam
Yin-Zhe, Ma
Mao, Yi
Mesinger, Andrei
Muñoz, Julian
Murray, Steven
Parsons, Aaron
Pritchard, Jonathan
Sievers, Jonathan
Switzer, Eric
Thyagarajan, Nithyanandan
Visbal, Eli
Zaldarriaga, Matias
description The "cosmic dawn" refers to the period of the Universe's history when stars and black holes first formed and began heating and ionizing hydrogen in the intergalactic medium (IGM). Though exceedingly difficult to detect directly, the first stars and black holes can be constrained indirectly through measurements of the cosmic 21-cm background, which traces the ionization state and temperature of intergalactic hydrogen gas. In this white paper, we focus on the science case for such observations, in particular those targeting redshifts z \(\gtrsim\) 10 when the IGM is expected to be mostly neutral. 21-cm observations provide a unique window into this epoch and are thus critical to advancing first star and black hole science in the next decade.
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subjects Intergalactic media
Ionization
Stars
Stellar evolution
Universe
title Astro2020 Science White Paper: First Stars and Black Holes at Cosmic Dawn with Redshifted 21-cm Observations
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