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dc.creatorPark, Hyunbaeen_US
dc.creatorShapiro, Paul R.en_US
dc.creatorKomatsu, Eiichiroen_US
dc.creatorIliev, Illian T.en_US
dc.creatorAhn, Kyungjinen_US
dc.creatorMellema, Garrelten_US
dc.date.accessioned2016-04-28T19:36:25Z
dc.date.available2016-04-28T19:36:25Z
dc.date.issued2013-06en
dc.identifierdoi:10.15781/T25Z3D
dc.identifier.citationPark, 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.en_US
dc.identifier.issn0004-637Xen_US
dc.identifier.urihttp://hdl.handle.net/2152/34887
dc.description.abstractWe 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.en_US
dc.description.sponsorshipNRFen_US
dc.description.sponsorshipKorean government MEST 2012R1A1A1014646, 2012M4A2026720en_US
dc.description.sponsorshipSoutheast Physics Network (SEP-Net)en_US
dc.description.sponsorshipScience and Technology Facilities Council ST/F002858/1, ST/I000976/1en_US
dc.description.sponsorshipSwedish Research Council 2009-4088en_US
dc.description.sponsorshipU.S. NSF AST-0708176, AST-1009799en_US
dc.description.sponsorshipNASA NNX07AH09G, NNG04G177G, NNX11AE09Gen_US
dc.description.sponsorshipChandra grant SAO TM8-9009Xen_US
dc.language.isoEnglishen_US
dc.relation.ispartofen_US
dc.rightsAdministrative 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.en_US
dc.subjectcosmic background radiationen_US
dc.subjectdark ages, reionization, first starsen_US
dc.subjectearlyen_US
dc.subjectuniverseen_US
dc.subjectgalaxies: high-redshiften_US
dc.subjectintergalactic mediumen_US
dc.subjectlarge-scaleen_US
dc.subjectstructure of universeen_US
dc.subjectradiative transferen_US
dc.subjectmicrowave background anisotropiesen_US
dc.subjectradiative-transfer simulationsen_US
dc.subjectsouth-pole telescopeen_US
dc.subjectpatchy reionizationen_US
dc.subjectuniverseen_US
dc.subjectfluctuationsen_US
dc.subjectgalaxiesen_US
dc.subjectmodelsen_US
dc.subjectmatteren_US
dc.subjectmassen_US
dc.subjectastronomy & astrophysicsen_US
dc.titleThe Kinetic Sunyaev-Zel'Dovich Effect As A Probe Of The Physics Of Cosmic Reionization: The Effect Of Self-Regulated Reionizationen_US
dc.typeArticleen_US
dc.description.departmentAstronomyen_US
dc.identifier.Filename2013_06_kineticsunyaev.pdfen_US
dc.rights.restrictionOpenen_US
dc.identifier.doi10.1088/0004-637x/769/2/93en_US
dc.contributor.utaustinauthorPark, Hyunbaeen_US
dc.contributor.utaustinauthorShapiro, Paul R.en_US
dc.contributor.utaustinauthorKomatsu, Eiichiroen_US
dc.relation.ispartofserialAstrophysical Journalen_US


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