SCORCH. II. Radiation-hydrodynamic Simulations of Reionization with Varying Radiation Escape Fractions
International audience In the Simulations and Constructions of the Reionization of Cosmic Hydrogen project, we present new radiation-hydrodynamic simulations with updated high-redshift galaxy populations and varying radiation escape fractions. The simulations are designed to have fixed Thomson optic...
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Online Access: | https://hal.archives-ouvertes.fr/hal-01974887 https://doi.org/10.3847/1538-4357/aaef75 |
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ftccsdartic:oai:HAL:hal-01974887v1 2023-05-15T18:22:45+02:00 SCORCH. II. Radiation-hydrodynamic Simulations of Reionization with Varying Radiation Escape Fractions Doussot, Aristide Trac, Hy Cen, Renyue Laboratoire de Physique Théorique de l'ENS (LPTENS) Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS) École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2019 https://hal.archives-ouvertes.fr/hal-01974887 https://doi.org/10.3847/1538-4357/aaef75 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/arxiv/1712.04464 info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/aaef75 hal-01974887 https://hal.archives-ouvertes.fr/hal-01974887 ARXIV: 1712.04464 doi:10.3847/1538-4357/aaef75 INSPIRE: 1642969 Astrophys.J. https://hal.archives-ouvertes.fr/hal-01974887 Astrophys.J., 2019, 870 (1), pp.18. ⟨10.3847/1538-4357/aaef75⟩ cosmology: theory large-scale structure of universe reionization galaxies: high-redshift first stars dark ages [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/article Journal articles 2019 ftccsdartic https://doi.org/10.3847/1538-4357/aaef75 2021-12-12T02:56:12Z International audience In the Simulations and Constructions of the Reionization of Cosmic Hydrogen project, we present new radiation-hydrodynamic simulations with updated high-redshift galaxy populations and varying radiation escape fractions. The simulations are designed to have fixed Thomson optical depth τ ≈ 0.06, consistent with recent Planck observations, and similar midpoints of reionization 7.5 ≲ z ≲ 8.0, but with different ionization histories. The galaxy luminosity functions and ionizing photon production rates in our model are in good agreement with recent HST observations. Adopting a power-law form for the radiation escape fraction , we simulate the cases for a 8 = 0, 1, and 2 and find a 8 ≲ 2 in order to end reionization in the range of 5.5 ≲ z ≲ 6.5 to be consistent with Lyα forest observations. At fixed τ and as the power-law slope a 8 increases, the reionization process starts earlier but ends later with a longer duration Δz and the decreased redshift asymmetry Az. We find a range of durations 3.9 ≲ Δz ≲ 4.6 that is currently in tension with the upper limit Δz < 2.8 inferred from a recent joint analysis of Planck and South Pole Telescope observations. Article in Journal/Newspaper South pole Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) South Pole The Astrophysical Journal 870 1 18 |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
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cosmology: theory large-scale structure of universe reionization galaxies: high-redshift first stars dark ages [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
spellingShingle |
cosmology: theory large-scale structure of universe reionization galaxies: high-redshift first stars dark ages [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Doussot, Aristide Trac, Hy Cen, Renyue SCORCH. II. Radiation-hydrodynamic Simulations of Reionization with Varying Radiation Escape Fractions |
topic_facet |
cosmology: theory large-scale structure of universe reionization galaxies: high-redshift first stars dark ages [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
description |
International audience In the Simulations and Constructions of the Reionization of Cosmic Hydrogen project, we present new radiation-hydrodynamic simulations with updated high-redshift galaxy populations and varying radiation escape fractions. The simulations are designed to have fixed Thomson optical depth τ ≈ 0.06, consistent with recent Planck observations, and similar midpoints of reionization 7.5 ≲ z ≲ 8.0, but with different ionization histories. The galaxy luminosity functions and ionizing photon production rates in our model are in good agreement with recent HST observations. Adopting a power-law form for the radiation escape fraction , we simulate the cases for a 8 = 0, 1, and 2 and find a 8 ≲ 2 in order to end reionization in the range of 5.5 ≲ z ≲ 6.5 to be consistent with Lyα forest observations. At fixed τ and as the power-law slope a 8 increases, the reionization process starts earlier but ends later with a longer duration Δz and the decreased redshift asymmetry Az. We find a range of durations 3.9 ≲ Δz ≲ 4.6 that is currently in tension with the upper limit Δz < 2.8 inferred from a recent joint analysis of Planck and South Pole Telescope observations. |
author2 |
Laboratoire de Physique Théorique de l'ENS (LPTENS) Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS) École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Doussot, Aristide Trac, Hy Cen, Renyue |
author_facet |
Doussot, Aristide Trac, Hy Cen, Renyue |
author_sort |
Doussot, Aristide |
title |
SCORCH. II. Radiation-hydrodynamic Simulations of Reionization with Varying Radiation Escape Fractions |
title_short |
SCORCH. II. Radiation-hydrodynamic Simulations of Reionization with Varying Radiation Escape Fractions |
title_full |
SCORCH. II. Radiation-hydrodynamic Simulations of Reionization with Varying Radiation Escape Fractions |
title_fullStr |
SCORCH. II. Radiation-hydrodynamic Simulations of Reionization with Varying Radiation Escape Fractions |
title_full_unstemmed |
SCORCH. II. Radiation-hydrodynamic Simulations of Reionization with Varying Radiation Escape Fractions |
title_sort |
scorch. ii. radiation-hydrodynamic simulations of reionization with varying radiation escape fractions |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.archives-ouvertes.fr/hal-01974887 https://doi.org/10.3847/1538-4357/aaef75 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Astrophys.J. https://hal.archives-ouvertes.fr/hal-01974887 Astrophys.J., 2019, 870 (1), pp.18. ⟨10.3847/1538-4357/aaef75⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/1712.04464 info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/aaef75 hal-01974887 https://hal.archives-ouvertes.fr/hal-01974887 ARXIV: 1712.04464 doi:10.3847/1538-4357/aaef75 INSPIRE: 1642969 |
op_doi |
https://doi.org/10.3847/1538-4357/aaef75 |
container_title |
The Astrophysical Journal |
container_volume |
870 |
container_issue |
1 |
container_start_page |
18 |
_version_ |
1766202172233482240 |