Was there an early reionization component in our universe?

Villanueva-Domingo, Pablo; Gariazzo, Stefano; Gnedin, Nickolay Y.; Mena, Olga

doi:10.1088/1475-7516/2018/04/024

Title: Was there an early reionization component in our universe?

Journal Article · Fri Apr 06 00:00:00 EDT 2018 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2018/04/024· OSTI ID:1431582

Villanueva-Domingo, Pablo ^[1]; Gariazzo, Stefano ^[1]; Gnedin, Nickolay Y. ^[2]; Mena, Olga ^[1]

Spanish National Research Council (CSIC), Valencia (Spain). Univ. of Valencia (UV), Inst. de Fisica Corpuscular
Univ. of Chicago, IL (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

A deep understanding of the Epoch of Reionization is still missing in our knowledge of the universe. While future probes will allow us to test the precise evolution of the free electron fraction from redshifts between $$z\simeq 6$$ and $$z\simeq 20$$, at present one could ask what kind of reionization processes are allowed by present Cosmic Microwave Background temperature and polarization measurements. An early contribution to reionization could imply a departure from the standard picture where star formation determines the reionization onset. BBy considering a broad class of possible reionization parameterizations, we find that current data do not require an early reionization component in our universe and that only one marginal class of models, based on a particular realization of reionization, may point to that. In addition, the frequentist Akaike Information Criterion (AIC) provides strong evidence against alternative reionization histories, favoring the most simple reionization scenario, which describes reionization by means of only one (constant) reionization optical depth $$\tau$$.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: AC02-07CH11359

OSTI ID:: 1431582

Report Number(s):: FERMILAB-PUB-17-605-A; arXiv:1712.02807; 1642197; TRN: US1802390

Journal Information:: Journal of Cosmology and Astroparticle Physics, Vol. 2018, Issue 04; ISSN 1475-7516

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 7 works

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A fresh look at linear cosmological constraints on a decaying dark matter component Poulin, Vivian; Serpico, Pasquale D.; Lesgourgues, Julien arXiv https://doi.org/10.48550/arxiv.1606.02073	text	January 2016
Complete Reionization Constraints from Planck 2015 Polarization Heinrich, Chen He; Miranda, V.; Hu, Wayne arXiv https://doi.org/10.48550/arxiv.1609.04788	text	January 2016
Constraints on dark matter scenarios from measurements of the galaxy luminosity function at high redshifts Corasaniti, P. S.; Agarwal, S.; Marsh, D. J. E. arXiv https://doi.org/10.48550/arxiv.1611.05892	text	January 2016
Cosmic microwave background limits on accreting primordial black holes Ali-Haïmoud, Yacine; Kamionkowski, Marc arXiv https://doi.org/10.48550/arxiv.1612.05644	text	January 2016
CMB bounds on disk-accreting massive Primordial Black Holes Poulin, Vivian; Serpico, Pasquale D.; Calore, Francesca arXiv https://doi.org/10.48550/arxiv.1707.04206	text	January 2017
Witnessing the reionization history using Cosmic Microwave Background observation from Planck Hazra, Dhiraj Kumar; Smoot, George F. arXiv https://doi.org/10.48550/arxiv.1708.04913	text	January 2017
Constraints on Warm Dark Matter from Cosmological Reionization Barkana, Rennan; Haiman, Zoltan; Ostriker, Jeremiah P. arXiv https://doi.org/10.48550/arxiv.astro-ph/0102304	text	January 2001
Cosmological parameters from CMB and other data: a Monte-Carlo approach Lewis, Antony; Bridle, Sarah arXiv https://doi.org/10.48550/arxiv.astro-ph/0205436	text	January 2002
Early Structure Formation and Reionization in a Warm Dark Matter Cosmology Yoshida, Naoki; Sokasian, Aaron; Hernquist, Lars arXiv https://doi.org/10.48550/arxiv.astro-ph/0303622	text	January 2003
The James Webb Space Telescope Gardner, Jonathan P.; Mather, John C.; Clampin, Mark arXiv https://doi.org/10.48550/arxiv.astro-ph/0606175	text	January 2006
The Cosmic Microwave Background and the Ionization History of the Universe Lewis, Antony; Weller, Jochen; Battye, Richard arXiv https://doi.org/10.48550/arxiv.astro-ph/0606552	text	January 2006
CMB polarization features from inflation versus reionization Mortonson, Michael J.; Dvorkin, Cora; Peiris, Hiranya V. arXiv https://doi.org/10.48550/arxiv.0903.4920	text	January 2009
Constraints on Dark Matter annihilations from reionization and heating of the intergalactic gas Cirelli, Marco; Iocco, Fabio; Panci, Paolo arXiv https://doi.org/10.48550/arxiv.0907.0719	text	January 2009
CMB photons shedding light on dark matter Giesen, Gaelle; Lesgourgues, Julien; Audren, Benjamin arXiv https://doi.org/10.48550/arxiv.1209.0247	text	January 2012
Focusing on Warm Dark Matter with Lensed High-redshift Galaxies Pacucci, Fabio; Mesinger, Andrei; Haiman, Zoltan arXiv https://doi.org/10.48550/arxiv.1306.0009	text	January 2013
The High-$z$ Universe Confronts Warm Dark Matter: Galaxy Counts, Reionization and the Nature of Dark Matter Schultz, Christian; Oñorbe, Jose; Abazajian, Kevork N. arXiv https://doi.org/10.48550/arxiv.1401.3769	text	January 2014
Decaying particles and the reionization history of the Universe Pierpaoli, Elena arXiv https://doi.org/10.48550/arxiv.astro-ph/0310375	text	January 2003

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Reionization in the dark and the light from Cosmic Microwave Background Hazra, Dhiraj Kumar; Paoletti, Daniela; Finelli, Fabio Journal of Cosmology and Astroparticle Physics, Vol. 2018, Issue 09 https://doi.org/10.1088/1475-7516/2018/09/016	journal	September 2018

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