The Kinetic Sunyaev-Zel'Dovich Effect As A Probe Of The Physics Of Cosmic Reionization: The Effect Of Self-Regulated Reionization
We calculate the angular power spectrum of the cosmic microwave background temperature fluctuations induced by the kinetic Sunyaev-Zel'dovich (kSZ) effect from the epoch of reionization (EOR). We use detailed N-body+radiative-transfer simulations to follow inhomogeneous reionization of the inte...
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Language: | English |
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2013
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Online Access: | http://hdl.handle.net/2152/34887 https://doi.org/10.15781/T25Z3D https://doi.org/10.1088/0004-637x/769/2/93 |
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ftunivtexas:oai:repositories.lib.utexas.edu:2152/34887 |
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openpolar |
institution |
Open Polar |
collection |
The University of Texas at Austin: Texas ScholarWorks |
op_collection_id |
ftunivtexas |
language |
English |
topic |
cosmic background radiation dark ages reionization first stars early universe galaxies: high-redshift intergalactic medium large-scale structure of universe radiative transfer microwave background anisotropies radiative-transfer simulations south-pole telescope patchy reionization fluctuations galaxies models matter mass astronomy & astrophysics |
spellingShingle |
cosmic background radiation dark ages reionization first stars early universe galaxies: high-redshift intergalactic medium large-scale structure of universe radiative transfer microwave background anisotropies radiative-transfer simulations south-pole telescope patchy reionization fluctuations galaxies models matter mass astronomy & astrophysics Park, Hyunbae Shapiro, Paul R. Komatsu, Eiichiro Iliev, Illian T. Ahn, Kyungjin Mellema, Garrelt The Kinetic Sunyaev-Zel'Dovich Effect As A Probe Of The Physics Of Cosmic Reionization: The Effect Of Self-Regulated Reionization |
topic_facet |
cosmic background radiation dark ages reionization first stars early universe galaxies: high-redshift intergalactic medium large-scale structure of universe radiative transfer microwave background anisotropies radiative-transfer simulations south-pole telescope patchy reionization fluctuations galaxies models matter mass astronomy & astrophysics |
description |
We calculate the angular power spectrum of the cosmic microwave background temperature fluctuations induced by the kinetic Sunyaev-Zel'dovich (kSZ) effect from the epoch of reionization (EOR). We use detailed N-body+radiative-transfer simulations to follow inhomogeneous reionization of the intergalactic medium. For the first time, we take into account the "self-regulation" of reionization: star formation in low-mass dwarf galaxies (10(8) M-circle dot less than or similar to M less than or similar to 10(9) M-circle dot) or minihalos (10(5) M-circle dot less than or similar to M less than or similar to 10(8) M-circle dot) is suppressed if these halos form in the regions that were already ionized or Lyman-Werner dissociated. Some previous work suggested that the amplitude of the kSZ power spectrum from the EOR can be described by a two-parameter family: the epoch of half-ionization and the duration of reionization. However, we argue that this picture applies only to simple forms of the reionization history which are roughly symmetric about the half-ionization epoch. In self-regulated reionization, the universe begins to be ionized early, maintains a low level of ionization for an extended period, and then finishes reionization as soon as high-mass atomically cooling halos dominate. While inclusion of self-regulation affects the amplitude of the kSZ power spectrum only modestly (similar to 10%), it can change the duration of reionization by a factor of more than two. We conclude that the simple two-parameter family does not capture the effect of a physical, yet complex, reionization history caused by self-regulation. When added to the post-reionization kSZ contribution, our prediction for the total kSZ power spectrum is below the current upper bound from the South Pole Telescope. Therefore, the current upper bound on the kSZ effect from the EOR is consistent with our understanding of the physics of reionization. NRF Korean government MEST 2012R1A1A1014646, 2012M4A2026720 Southeast Physics Network (SEP-Net) Science and Technology Facilities Council ST/F002858/1, ST/I000976/1 Swedish Research Council 2009-4088 U.S. NSF AST-0708176, AST-1009799 NASA NNX07AH09G, NNG04G177G, NNX11AE09G Chandra grant SAO TM8-9009X Astronomy |
author2 |
Park, Hyunbae Shapiro, Paul R. Komatsu, Eiichiro |
format |
Article in Journal/Newspaper |
author |
Park, Hyunbae Shapiro, Paul R. Komatsu, Eiichiro Iliev, Illian T. Ahn, Kyungjin Mellema, Garrelt |
author_facet |
Park, Hyunbae Shapiro, Paul R. Komatsu, Eiichiro Iliev, Illian T. Ahn, Kyungjin Mellema, Garrelt |
author_sort |
Park, Hyunbae |
title |
The Kinetic Sunyaev-Zel'Dovich Effect As A Probe Of The Physics Of Cosmic Reionization: The Effect Of Self-Regulated Reionization |
title_short |
The Kinetic Sunyaev-Zel'Dovich Effect As A Probe Of The Physics Of Cosmic Reionization: The Effect Of Self-Regulated Reionization |
title_full |
The Kinetic Sunyaev-Zel'Dovich Effect As A Probe Of The Physics Of Cosmic Reionization: The Effect Of Self-Regulated Reionization |
title_fullStr |
The Kinetic Sunyaev-Zel'Dovich Effect As A Probe Of The Physics Of Cosmic Reionization: The Effect Of Self-Regulated Reionization |
title_full_unstemmed |
The Kinetic Sunyaev-Zel'Dovich Effect As A Probe Of The Physics Of Cosmic Reionization: The Effect Of Self-Regulated Reionization |
title_sort |
kinetic sunyaev-zel'dovich effect as a probe of the physics of cosmic reionization: the effect of self-regulated reionization |
publishDate |
2013 |
url |
http://hdl.handle.net/2152/34887 https://doi.org/10.15781/T25Z3D https://doi.org/10.1088/0004-637x/769/2/93 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
Astrophysical Journal doi:10.15781/T25Z3D Park, Hyunbae, Paul R. Shapiro, Eiichiro Komatsu, Ilian T. Iliev, Kyungjin Ahn, and Garrelt Mellema. "The Kinetic Sunyaev-Zel'dovich effect as a probe of the physics of cosmic reionization: the effect of self-regulated reionization." The Astrophysical Journal, Vol. 769, No. 2 (Jun., 2013): 93. 0004-637X http://hdl.handle.net/2152/34887 2013_06_kineticsunyaev.pdf doi:10.1088/0004-637x/769/2/93 |
op_rights |
Administrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University. Open |
op_doi |
https://doi.org/10.15781/T25Z3D https://doi.org/10.1088/0004-637x/769/2/93 |
_version_ |
1766202039389388800 |
spelling |
ftunivtexas:oai:repositories.lib.utexas.edu:2152/34887 2023-05-15T18:22:38+02:00 The Kinetic Sunyaev-Zel'Dovich Effect As A Probe Of The Physics Of Cosmic Reionization: The Effect Of Self-Regulated Reionization Park, Hyunbae Shapiro, Paul R. Komatsu, Eiichiro Iliev, Illian T. Ahn, Kyungjin Mellema, Garrelt Park, Hyunbae Shapiro, Paul R. Komatsu, Eiichiro 2013-06 application/pdf http://hdl.handle.net/2152/34887 https://doi.org/10.15781/T25Z3D https://doi.org/10.1088/0004-637x/769/2/93 English eng Astrophysical Journal doi:10.15781/T25Z3D Park, Hyunbae, Paul R. Shapiro, Eiichiro Komatsu, Ilian T. Iliev, Kyungjin Ahn, and Garrelt Mellema. "The Kinetic Sunyaev-Zel'dovich effect as a probe of the physics of cosmic reionization: the effect of self-regulated reionization." The Astrophysical Journal, Vol. 769, No. 2 (Jun., 2013): 93. 0004-637X http://hdl.handle.net/2152/34887 2013_06_kineticsunyaev.pdf doi:10.1088/0004-637x/769/2/93 Administrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University. Open cosmic background radiation dark ages reionization first stars early universe galaxies: high-redshift intergalactic medium large-scale structure of universe radiative transfer microwave background anisotropies radiative-transfer simulations south-pole telescope patchy reionization fluctuations galaxies models matter mass astronomy & astrophysics Article 2013 ftunivtexas https://doi.org/10.15781/T25Z3D https://doi.org/10.1088/0004-637x/769/2/93 2020-12-23T22:06:15Z We calculate the angular power spectrum of the cosmic microwave background temperature fluctuations induced by the kinetic Sunyaev-Zel'dovich (kSZ) effect from the epoch of reionization (EOR). We use detailed N-body+radiative-transfer simulations to follow inhomogeneous reionization of the intergalactic medium. For the first time, we take into account the "self-regulation" of reionization: star formation in low-mass dwarf galaxies (10(8) M-circle dot less than or similar to M less than or similar to 10(9) M-circle dot) or minihalos (10(5) M-circle dot less than or similar to M less than or similar to 10(8) M-circle dot) is suppressed if these halos form in the regions that were already ionized or Lyman-Werner dissociated. Some previous work suggested that the amplitude of the kSZ power spectrum from the EOR can be described by a two-parameter family: the epoch of half-ionization and the duration of reionization. However, we argue that this picture applies only to simple forms of the reionization history which are roughly symmetric about the half-ionization epoch. In self-regulated reionization, the universe begins to be ionized early, maintains a low level of ionization for an extended period, and then finishes reionization as soon as high-mass atomically cooling halos dominate. While inclusion of self-regulation affects the amplitude of the kSZ power spectrum only modestly (similar to 10%), it can change the duration of reionization by a factor of more than two. We conclude that the simple two-parameter family does not capture the effect of a physical, yet complex, reionization history caused by self-regulation. When added to the post-reionization kSZ contribution, our prediction for the total kSZ power spectrum is below the current upper bound from the South Pole Telescope. Therefore, the current upper bound on the kSZ effect from the EOR is consistent with our understanding of the physics of reionization. NRF Korean government MEST 2012R1A1A1014646, 2012M4A2026720 Southeast Physics Network (SEP-Net) Science and Technology Facilities Council ST/F002858/1, ST/I000976/1 Swedish Research Council 2009-4088 U.S. NSF AST-0708176, AST-1009799 NASA NNX07AH09G, NNG04G177G, NNX11AE09G Chandra grant SAO TM8-9009X Astronomy Article in Journal/Newspaper South pole The University of Texas at Austin: Texas ScholarWorks South Pole |