Observational Constraints on the Metagalactic Lyα Photon Scattering Rate at High Redshift

Avery Meiksin

doi:10.3847/2515-5172/accbc2

Observational Constraints on the Metagalactic Lyα Photon Scattering Rate at High Redshift

Avery Meiksin

School of Physics and Astronomy

Research output: Contribution to journal › Article

Abstract

The scattering of Lyα photons from the first radiating sources in the universe plays a pivotal role in 21 cm radio detections of Cosmic Dawn and the Epoch of Reionization through the Wouthuysen–Field effect. New data from JWST show the Lyα photon scattering rate exceeds that required to decouple the intergalactic hydrogen spin temperature from that of the Cosmic Microwave Background up to z ∼ 14 and render the neutral hydrogen visible.

Original language	English
Article number	71
Journal	Research Notes of the American Astronomical Society
Volume	7
Issue number	4
DOIs	https://doi.org/10.3847/2515-5172/accbc2
Publication status	Published - 14 Apr 2023

Keywords / Materials (for Non-textual outputs)

astro-ph.CO
astro-ph.GA

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10.3847/2515-5172/accbc2Licence: Creative Commons: Attribution (CC-BY)

https://arxiv.org/abs/2304.07085Licence: Creative Commons: Attribution (CC-BY)

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title = "Observational Constraints on the Metagalactic Lyα Photon Scattering Rate at High Redshift",

abstract = "The scattering of Lyα photons from the first radiating sources in the universe plays a pivotal role in 21 cm radio detections of Cosmic Dawn and the Epoch of Reionization through the Wouthuysen–Field effect. New data from JWST show the Lyα photon scattering rate exceeds that required to decouple the intergalactic hydrogen spin temperature from that of the Cosmic Microwave Background up to z ∼ 14 and render the neutral hydrogen visible.",

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N2 - The scattering of Lyα photons from the first radiating sources in the universe plays a pivotal role in 21 cm radio detections of Cosmic Dawn and the Epoch of Reionization through the Wouthuysen–Field effect. New data from JWST show the Lyα photon scattering rate exceeds that required to decouple the intergalactic hydrogen spin temperature from that of the Cosmic Microwave Background up to z ∼ 14 and render the neutral hydrogen visible.

AB - The scattering of Lyα photons from the first radiating sources in the universe plays a pivotal role in 21 cm radio detections of Cosmic Dawn and the Epoch of Reionization through the Wouthuysen–Field effect. New data from JWST show the Lyα photon scattering rate exceeds that required to decouple the intergalactic hydrogen spin temperature from that of the Cosmic Microwave Background up to z ∼ 14 and render the neutral hydrogen visible.

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Observational Constraints on the Metagalactic Lyα Photon Scattering Rate at High Redshift

Abstract

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