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The kinetic Sunyaev–Zel'dovich effect from reionization

McQuinn, Matthew and Furlanetto, Steven R. and Hernquist, Lars and Zahn, Oliver and Zaldarriaga, Matias (2006) The kinetic Sunyaev–Zel'dovich effect from reionization. New Astronomy Reviews, 50 (1-3). pp. 84-88. ISSN 1387-6473.

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During the epoch of reionization, local variations in the ionized fraction (patchiness) imprint arcminute-scale temperature anisotropies in the cosmic microwave background through the kinetic Sunyaev–Zel’dovich (kSZ) effect. We employ an analytic model of reionization devised by Furlanetto and coworkers to calculate the kSZ anisotropies for patchy reionization. We find that the angular power spectrum of the kSZ anisotropies depends strongly on the size distribution of the HII bubbles and on the duration of reionization. In addition, we show that upcoming measurements of the kSZ effect should be able to distinguish between several popular reionization scenarios. In particular, the amplitude of the patchy power spectrum for reionization scenarios in which the IGM is significantly ionized by Population III stars (or by mini-quasars/decaying particles) can be larger (or smaller) by over a factor of 3 than the amplitude in more traditional reionization histories (with temperature anisotropies that range between 0.5 and 3 μK at l = 5000).

Item Type:Article
Related URLs:
URLURL TypeDescription
Furlanetto, Steven R.0000-0002-0658-1243
Hernquist, Lars0000-0001-6950-1629
Additional Information:© 2005 Elsevier B.V. Available online 4 January 2006. This work was supported in part by NSF Grants AST 02-06299, AST-0098606 and AST 03-07690, by NASA ATP Grants NAG5-12140, NAG5-13292, and NAG5- 13381, and by the David & Lucille Packard Foundation and the Sloan Foundation.
Funding AgencyGrant Number
NSFAST 02-06299
NSFAST 03-07690
NASANAG5- 13381
David and Lucile Packard FoundationUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
Subject Keywords:Cosmology: theory; Intergalactic medium; Cosmic microwave background
Issue or Number:1-3
Record Number:CaltechAUTHORS:20110225-154951834
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Official Citation:Matthew McQuinn, Steven R. Furlanetto, Lars Hernquist, Oliver Zahn, Matias Zaldarriaga, The kinetic Sunyaev-Zel'dovich effect from reionization, New Astronomy Reviews, Volume 50, Issues 1-3, First Light and Reionization: Theoretical Study and Experimental Detection of First Luminous Sources in the Universe, March 2006, Pages 84-88, ISSN 1387-6473, DOI: 10.1016/j.newar.2005.11.025. (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:22530
Deposited By: Benjamin Perez
Deposited On:26 Feb 2011 00:13
Last Modified:06 Nov 2019 03:58

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