Constraints on Cosmological Parameters from the Angular Power Spectrum of a Combined 2500 deg<sup>2</sup> SPT-SZ and Planck Gravitational Lensing Map

Simard, G.; Omori, Y.; Aylor, K.; Baxter, Eric J.; Benson, B. A.; Bleem, L. E.; Carlstrom, J. E.; Chang, C. L.; Cho, H. M.; Chown, R.; Crawford, T. M.; Crites, A. T.; Haan, T. de; Dobbs, M.; Everett, W.; George, E. M.; Halverson, N. W.; Harrington, N. L.; Henning, J. W.; Holder, G. P.; Hou, Z.; Holzapfel, W. L.; Hrubes, J. D.; Knox, L.; Lee, A. T.; Leitch, E. M.; Luong-Van, D.; Manzotti, Alessandro; McMahon, Jeff; Meyer, S. S.; Mocanu, L. M.; Mohr, J. J.; Natoli, T.; Padin, S.; Pryke, C.; Reichardt, Christian; Ruhl, J. E.; Sayre, J. T.; Schaffer, K. K.; Shirokoff, E.; Staniszewski, Z.; Stark, A. A.; Story, K. T.; Vanderlinde, K.; Vieira, J. D.; Williamson, A. R.; Wu, W. L. K.

doi:10.3847/1538-4357/aac264

Cited by 36 publications

(48 citation statements)

References 41 publications

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“…For comparison, in Fig. 2 we also show the constraints obtained by Simard et al (2018) with the CMB lensing band powers from 2500 deg 2 observed by SPT-SZ + Planck (Omori et al 2017), which are again consistent with the SPTpol ones and similar in extent.…”

Section: Constraints From Cmb Lensing Alonesupporting

confidence: 80%

“…When the peak smearing information has been marginalized over, the amplitude of the lensing trispectrum relative to the best-fit ΛCDM parameters is consistent with expectations independent of the dataset combination. The results based on the SPT-SZ + Planck lensing map from Omori et al (2017) presented in Simard et al (2018) are also consistent with the SPTpol constraints.…”

Section: Lensing Amplitudessupporting

confidence: 80%

“…Evaluating these quantities at each point in the parameter space is computationally unfeasible, therefore we follow the approach of Planck Collaboration et al (2016c); Sherwin et al (2017); Simard et al (2018) and perturbatively correct the theory spectrum for changes due to the parameter deviations from the fiducial cosmology. For such small deviations, we can Taylor-expand the response function and the N (1) L bias around the fiducial cosmology and obtain: 1…”

Section: Cmb Lensing Likelihoodmentioning

confidence: 99%

“…Specifically, we fix the optical depth to reionization to τ = 0.055 and place Gaussian priors on the baryon density Ω b h 2 = 0.0222 ± 0.0005, motivated by primordial deuterium abundance D/H measurements in highredshift metal-poor quasar absorption systems (Cooke et al 2018) combined with big-bang nucleosynthesis predictions, and on the spectral index n s = 0.96 ± 0.02. Moreover, we fix the linear corrections to the response function to the fiducial cosmology, similar to Planck Collaboration et al (2016c); Sherwin et al (2017); Simard et al (2018).…”

Section: Constraints From Cmb Lensing Alonementioning

confidence: 99%

“…10 The CMB lensing measurement from W19 represents an independent cross-check on the Planck lensing amplitude measurement. To this end, we follow Planck Collaboration et al (2018b); Simard et al (2018) and introduce two phenomenologically motivated lensing amplitude parameters, A L and A φφ L . The former is an unphysical parameter that scales the lensing power spectrum both in the acoustic peak smearing and the lens recon-10 The significance of the spt data preference for low lensing power when compared to Planck can be exacerbated if supersample and intra-sample lensing covariances are neglected, see Motloch & Hu (2019).…”

Section: Lensing Amplitudesmentioning

confidence: 99%

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Constraints on Cosmological Parameters from the 500 deg² SPTPOL Lensing Power Spectrum

Bianchini

Ade

et al. 2020

ApJ

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We present cosmological constraints based on the cosmic microwave background (CMB) lensing potential power spectrum measurement from the recent 500 deg 2 SPTpol survey, the most precise CMB lensing measurement from the ground to date. We fit a flat ΛCDM model to the reconstructed lensing power spectrum alone and in addition with other data sets: baryon acoustic oscillations (BAO) as well as primary CMB spectra from Planck and SPTpol. The cosmological constraints based on SPTpol and Planck lensing band powers are in good agreement when analysed alone and in combination with Planck full-sky primary CMB data. Within the ΛCDM model, CMB lensing data are primarily sensitive to the amount of large-scale structure as parametrized by σ 8 Ω 0.25 m . With weak priors on the baryon density and other parameters, the SPTpol CMB lensing data alone provide a 4% constraint on σ 8 Ω 0.25 m = 0.593 ± 0.025. Jointly fitting with BAO data, we find σ 8 = 0.779 ± 0.023, Ω m = 0.368 +0.032 −0.037 , and H 0 = 72.0 +2.1 −2.5 km s −1 Mpc −1 , up to 2 σ away from the central values preferred by Planck lensing + BAO. However, we recover good agreement between SPTpol and Planck when restricting the analysis to similar scales. We also consider single-parameter extensions to the flat ΛCDM model. In combination with Planck primary CMB measurements and BAO, the SPTpol lensing spectrum constrains the spatial curvature to be Ω K = −0.0007 ± 0.0025 and the sum of the neutrino masses to be m ν < 0.23 eV at 95% C.L., both in good agreement with the full-sky Planck lensing results. With the differences in the S/N of the lensing modes and the angular scales covered in the lensing spectra, this analysis represents an important independent check on the full-sky Planck lensing measurement.

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Section: Constraints From Cmb Lensing Alonesupporting

confidence: 80%

Section: Lensing Amplitudessupporting

confidence: 80%

Section: Cmb Lensing Likelihoodmentioning

confidence: 99%

Section: Constraints From Cmb Lensing Alonementioning

confidence: 99%

Section: Lensing Amplitudesmentioning

confidence: 99%

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Constraints on Cosmological Parameters from the 500 deg² SPTPOL Lensing Power Spectrum

Bianchini

Ade

et al. 2020

ApJ

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Lensing of the Cosmic Microwave Background

Congdon

Keeton

2018

Principles of Gravitational Lensing

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Microwave spectro-polarimetry of matter and radiation across space and time

et al. 2021

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This paper discusses the science case for a sensitive spectro-polarimetric survey of the microwave sky. Such a survey would provide a tomographic and dynamic census of the three-dimensional distribution of hot gas, velocity flows, early metals, dust, and mass distribution in the entire Hubble volume, exploit CMB temperature and polarisation anisotropies down to fundamental limits, and track energy injection and absorption into the radiation background across cosmic times by measuring spectral distortions of the CMB blackbody emission. In addition to its exceptional capability for cosmology and fundamental physics, such a survey would provide an unprecedented view of microwave emissions at sub-arcminute to few-arcminute angular resolution in hundreds of frequency channels, a data set that would be of immense legacy value for many branches of astrophysics. We propose that this survey be carried out with a large space mission featuring a broad-band polarised imager and a moderate resolution spectro-imager at the focus of a 3.5 m aperture telescope actively cooled to about 8K, complemented with absolutely-calibrated Fourier Transform Spectrometer modules observing at degree-scale angular resolution in the 10–2000 GHz frequency range. We propose two observing modes: a survey mode to map the entire sky as well as a few selected wide fields, and an observatory mode for deeper observations of regions of specific interest.

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Constraints on Cosmological Parameters from the Angular Power Spectrum of a Combined 2500 deg² SPT-SZ and Planck Gravitational Lensing Map

Cited by 36 publications

References 41 publications

Constraints on Cosmological Parameters from the 500 deg² SPTPOL Lensing Power Spectrum

Constraints on Cosmological Parameters from the 500 deg² SPTPOL Lensing Power Spectrum

Lensing of the Cosmic Microwave Background

Microwave spectro-polarimetry of matter and radiation across space and time

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Constraints on Cosmological Parameters from the Angular Power Spectrum of a Combined 2500 deg2 SPT-SZ and Planck Gravitational Lensing Map

Cited by 36 publications

References 41 publications

Constraints on Cosmological Parameters from the 500 deg2 SPTPOL Lensing Power Spectrum

Constraints on Cosmological Parameters from the 500 deg2 SPTPOL Lensing Power Spectrum

Lensing of the Cosmic Microwave Background

Microwave spectro-polarimetry of matter and radiation across space and time

Contact Info

Product

Resources

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Constraints on Cosmological Parameters from the Angular Power Spectrum of a Combined 2500 deg² SPT-SZ and Planck Gravitational Lensing Map

Constraints on Cosmological Parameters from the 500 deg² SPTPOL Lensing Power Spectrum

Constraints on Cosmological Parameters from the 500 deg² SPTPOL Lensing Power Spectrum