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Title: Cosmological constraints from thermal Sunyaev–Zeldovich power spectrum revisited

Abstract

Thermal Sunyaev–Zeldovich (tSZ) power spectrum is one of the most sensitive methods to constrain cosmological parameters, scaling as the amplitude σ$$8\atop{8}$$⁠. It is determined by the integral over the halo mass function multiplied by the total pressure content of clusters and further convolved by the cluster gas pressure profile. It has been shown that various feedback effects can change significantly the pressure profile, possibly even pushing the gas out to the virial radius and beyond, strongly affecting the tSZ power spectrum at high l. Energetics arguments and SZ-halo mass scaling relations suggest feedback is unlikely to significantly change the total pressure content, making the low l tSZ power spectrum more robust against feedback effects. Moreover, the separation between the cosmic infrared background and tSZ is more reliable at low l. Low l modes are however probing very small volumes, giving rise to very large non-Gaussian sampling variance errors. By computing the trispectrum contribution, we identify 90 < l < 350 as the minimum variance scale where the combined error is minimized. We find constraints on σ8 by marginalizing over the feedback nuisance parameter, obtaining σ 8=0.820$$+0.021\atop{-0.009}$$(Ω m/0.31) 0.4 when fixing other parameters to Planck cosmology values. Our results indicate that it is possible to obtain competitive cosmological constraints from tSZ without cluster redshift information and that the current tSZ power spectrum shows no evidence for a low amplitude of σ 8.

Authors:
 [1];  [2]
  1. Univ. of California, Berkeley, CA (United States)
  2. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1523831
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 469; Journal Issue: 1; Journal ID: ISSN 0035-8711
Publisher:
Royal Astronomical Society
Country of Publication:
United States
Language:
English

Citation Formats

Horowitz, B., and Seljak, U. Cosmological constraints from thermal Sunyaev–Zeldovich power spectrum revisited. United States: N. p., 2017. Web. doi:10.1093/mnras/stx766.
Horowitz, B., & Seljak, U. Cosmological constraints from thermal Sunyaev–Zeldovich power spectrum revisited. United States. doi:10.1093/mnras/stx766.
Horowitz, B., and Seljak, U. Wed . "Cosmological constraints from thermal Sunyaev–Zeldovich power spectrum revisited". United States. doi:10.1093/mnras/stx766. https://www.osti.gov/servlets/purl/1523831.
@article{osti_1523831,
title = {Cosmological constraints from thermal Sunyaev–Zeldovich power spectrum revisited},
author = {Horowitz, B. and Seljak, U.},
abstractNote = {Thermal Sunyaev–Zeldovich (tSZ) power spectrum is one of the most sensitive methods to constrain cosmological parameters, scaling as the amplitude σ$8\atop{8}$⁠. It is determined by the integral over the halo mass function multiplied by the total pressure content of clusters and further convolved by the cluster gas pressure profile. It has been shown that various feedback effects can change significantly the pressure profile, possibly even pushing the gas out to the virial radius and beyond, strongly affecting the tSZ power spectrum at high l. Energetics arguments and SZ-halo mass scaling relations suggest feedback is unlikely to significantly change the total pressure content, making the low l tSZ power spectrum more robust against feedback effects. Moreover, the separation between the cosmic infrared background and tSZ is more reliable at low l. Low l modes are however probing very small volumes, giving rise to very large non-Gaussian sampling variance errors. By computing the trispectrum contribution, we identify 90 < l < 350 as the minimum variance scale where the combined error is minimized. We find constraints on σ8 by marginalizing over the feedback nuisance parameter, obtaining σ8=0.820$+0.021\atop{-0.009}$(Ωm/0.31)0.4 when fixing other parameters to Planck cosmology values. Our results indicate that it is possible to obtain competitive cosmological constraints from tSZ without cluster redshift information and that the current tSZ power spectrum shows no evidence for a low amplitude of σ8.},
doi = {10.1093/mnras/stx766},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 1,
volume = 469,
place = {United States},
year = {2017},
month = {3}
}

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Cited by: 13 works
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Figures / Tables:

Figure 1 Figure 1: A comparison of our model (solid green) at 146 GHz, simulations of Dolag et al. (2016, blue dotted) and the analytic model of Hill & Pajer (2013, red dotted) and Battaglia et al. (2012, yellow dot–dashed), which use different pressure profiles than our model. We have scaled allmore » power spectra to the fiducial cosmology with σ 8 = 0.815« less

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Works referenced in this record:

How supernova feedback turns dark matter cusps into cores: Supernova feedback and dark matter cores
journal, March 2012


The Large-Scale bias of dark Matter Halos: Numerical Calibration and Model Tests
journal, November 2010

  • Tinker, Jeremy L.; Robertson, Brant E.; Kravtsov, Andrey V.
  • The Astrophysical Journal, Vol. 724, Issue 2
  • DOI: 10.1088/0004-637X/724/2/878

The thermal Sunyaev–Zel'dovich effect power spectrum in light of Planck
journal, April 2014

  • McCarthy, I. G.; Le Brun, A. M. C.; Schaye, J.
  • Monthly Notices of the Royal Astronomical Society, Vol. 440, Issue 4
  • DOI: 10.1093/mnras/stu543

The effect of baryons on the inner density profiles of rich clusters
journal, July 2015

  • Schaller, Matthieu; Frenk, Carlos S.; Bower, Richard G.
  • Monthly Notices of the Royal Astronomical Society, Vol. 452, Issue 1
  • DOI: 10.1093/mnras/stv1341

Dark matter halo concentrations in the Wilkinson Microwave Anisotropy Probe year 5 cosmology
journal, October 2008

  • Duffy, Alan R.; Schaye, Joop; Kay, Scott T.
  • Monthly Notices of the Royal Astronomical Society: Letters, Vol. 390, Issue 1
  • DOI: 10.1111/j.1745-3933.2008.00537.x

Simulations of the Sunyaev-Zel'Dovich Power Spectrum with Active Galactic Nucleus Feedback
journal, November 2010


Planck 2015 results : XXII. A map of the thermal Sunyaev-Zeldovich effect
journal, September 2016


A Measurement of the Cosmic Microwave Background Damping tail from the 2500-Square-Degree Spt-Sz Survey
journal, November 2013


Templates for the Sunyaev-Zel’Dovich Angular Power Spectrum
journal, January 2011


On the Cluster Physics of Sunyaev-Zel'Dovich and X-Ray Surveys. ii. Deconstructing the Thermal sz Power Spectrum
journal, September 2012


Non-Gaussian aspects of thermal and kinetic Sunyaev-Zel’dovich effects
journal, August 2001


Impact of Cluster Physics on the Sunyaev-Zel'Dovich Power Spectrum
journal, November 2010


A weak gravitational lensing recalibration of the scaling relations linking the gas properties of dark haloes to their mass
journal, December 2015

  • Wang, Wenting; White, Simon D. M.; Mandelbaum, Rachel
  • Monthly Notices of the Royal Astronomical Society, Vol. 456, Issue 3
  • DOI: 10.1093/mnras/stv2809

Joint likelihood function of cluster counts and n -point correlation functions: Improving their power through including halo sample variance
journal, December 2014


Sharpening the Precision of the Sunyaev-Zel'Dovich Power Spectrum
journal, August 2009


A Measurement of Secondary Cosmic Microwave Background Anisotropies from the 2500 Square-Degree Spt-Sz Survey
journal, January 2015


Toward a Halo Mass Function for Precision Cosmology: The Limits of Universality
journal, December 2008

  • Tinker, Jeremy; Kravtsov, Andrey V.; Klypin, Anatoly
  • The Astrophysical Journal, Vol. 688, Issue 2
  • DOI: 10.1086/591439

Detection of thermal SZ-CMB lensing cross-correlation in Planck nominal mission data
journal, February 2014


THE STACKED THERMAL SUNYAEV–ZEL’DOVICH SIGNAL OF LOCALLY BRIGHTEST GALAXIES IN PLANCK FULL MISSION DATA: EVIDENCE FOR GALAXY FEEDBACK?
journal, July 2015


Determining the Cosmic Distance Scale from Interferometric Measurements of the Sunyaev‐Zeldovich Effect
journal, December 2002

  • Reese, Erik D.; Carlstrom, John E.; Joy, Marshall
  • The Astrophysical Journal, Vol. 581, Issue 1
  • DOI: 10.1086/344137

Planck 2015 results : XIII. Cosmological parameters
journal, September 2016


Sunyaev-Zeldovich Fluctuations from Spatial Correlations between Clusters of Galaxies
journal, November 1999

  • Komatsu, Eiichiro; Kitayama, Tetsu
  • The Astrophysical Journal, Vol. 526, Issue 1
  • DOI: 10.1086/312364

Cosmology from the thermal Sunyaev-Zel’dovich power spectrum: Primordial non-Gaussianity and massive neutrinos
journal, September 2013


The Sunyaev-Zel'dovich angular power spectrum as a probe of cosmological parameters
journal, November 2002


Mass loss from dwarf spheroidal galaxies: the origins of shallow dark matter cores and exponential surface brightness profiles
journal, January 2005


SZ effects in the Magneticum Pathfinder simulation: comparison with the Planck , SPT, and ACT results
journal, August 2016

  • Dolag, K.; Komatsu, E.; Sunyaev, R.
  • Monthly Notices of the Royal Astronomical Society, Vol. 463, Issue 2
  • DOI: 10.1093/mnras/stw2035

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