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Title: Halo Pressure Profile through the Skew Cross-power Spectrum of the Sunyaev–Zel’dovich Effect and CMB Lensing in Planck

Abstract

We measure the cosmic microwave background (CMB) skewness power spectrum in Planck , using frequency maps of the HFI instrument and the Sunyaev–Zel’dovich (SZ) component map. The two-to-one skewness power spectrum measures the cross-correlation between CMB lensing and the thermal SZ effect. We also directly measure the same cross-correlation using the Planck CMB lensing map and the SZ map and compare it to the cross-correlation derived from the skewness power spectrum. We model fit the SZ power spectrum and CMB lensing–SZ cross-power spectrum via the skewness power spectrum to constrain the gas pressure profile of dark matter halos. The gas pressure profile is compared to existing measurements in the literature including a direct estimate based on the stacking of SZ clusters in Planck .

Authors:
; ;  [1];  [2]
  1. Department of Physics and Astronomy, University of California, Irvine, CA 92697 (United States)
  2. Department of Physics, University of California, San Diego, La Jolla, CA 92093 (United States)
Publication Date:
OSTI Identifier:
22654360
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal Letters; Journal Volume: 849; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASYMMETRY; COMPARATIVE EVALUATIONS; CORRELATIONS; COSMOLOGY; DISTRIBUTION; NONLUMINOUS MATTER; RELICT RADIATION; SPECTRA; STATISTICS

Citation Formats

Timmons, Nicholas, Cooray, Asantha, Feng, Chang, and Keating, Brian. Halo Pressure Profile through the Skew Cross-power Spectrum of the Sunyaev–Zel’dovich Effect and CMB Lensing in Planck. United States: N. p., 2017. Web. doi:10.3847/2041-8213/AA89E8.
Timmons, Nicholas, Cooray, Asantha, Feng, Chang, & Keating, Brian. Halo Pressure Profile through the Skew Cross-power Spectrum of the Sunyaev–Zel’dovich Effect and CMB Lensing in Planck. United States. doi:10.3847/2041-8213/AA89E8.
Timmons, Nicholas, Cooray, Asantha, Feng, Chang, and Keating, Brian. Wed . "Halo Pressure Profile through the Skew Cross-power Spectrum of the Sunyaev–Zel’dovich Effect and CMB Lensing in Planck". United States. doi:10.3847/2041-8213/AA89E8.
@article{osti_22654360,
title = {Halo Pressure Profile through the Skew Cross-power Spectrum of the Sunyaev–Zel’dovich Effect and CMB Lensing in Planck},
author = {Timmons, Nicholas and Cooray, Asantha and Feng, Chang and Keating, Brian},
abstractNote = {We measure the cosmic microwave background (CMB) skewness power spectrum in Planck , using frequency maps of the HFI instrument and the Sunyaev–Zel’dovich (SZ) component map. The two-to-one skewness power spectrum measures the cross-correlation between CMB lensing and the thermal SZ effect. We also directly measure the same cross-correlation using the Planck CMB lensing map and the SZ map and compare it to the cross-correlation derived from the skewness power spectrum. We model fit the SZ power spectrum and CMB lensing–SZ cross-power spectrum via the skewness power spectrum to constrain the gas pressure profile of dark matter halos. The gas pressure profile is compared to existing measurements in the literature including a direct estimate based on the stacking of SZ clusters in Planck .},
doi = {10.3847/2041-8213/AA89E8},
journal = {Astrophysical Journal Letters},
number = 1,
volume = 849,
place = {United States},
year = {Wed Nov 01 00:00:00 EDT 2017},
month = {Wed Nov 01 00:00:00 EDT 2017}
}