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Title: Measurement of a cosmographic distance ratio with galaxy and cosmic microwave background lensing

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [4];  [5];  [6];  [7]
  1. California Inst. of Technology, Pasadena, CA (United States); The Univ. of Tokyo, Chiba (Japan)
  2. Princeton Univ., Princeton, NJ (United States); Stony Brook Univ., Stony Brook, NY (United States)
  3. Stony Brook Univ., Stony Brook, NY (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
  5. Princeton Univ., Princeton, NJ (United States); Flatiron Institute, New York, NY (United States)
  6. Univ. of California, Berkeley, CA (United States)
  7. Univ. of Toronto, Toronto, ON (Canada)
+ Show Author Affiliations

We measure the gravitational lensing shear signal around dark matter halos hosting constant mass galaxies using light sources at z~1 (background galaxies) and at the surface of last scattering at z~1100 (the cosmic microwave background). The galaxy shear measurement uses data from the CFHTLenS survey, and the microwave background shear measurement uses data from the Planck satellite. The ratio of shears from these cross-correlations provides a purely geometric distance measurement across the longest possible cosmological lever arm. This is because the matter distribution around the halos, including uncertainties in galaxy bias and systematic errors such as miscentering, cancels in the ratio for halos in thin redshift slices. We measure this distance ratio in three different redshift slices of the constant mass (CMASS) sample and combine them to obtain a 17% measurement of the distance ratio, r = 0.390+0.070–0.062, at an effective redshift of z = 0.53. As a result, this is consistent with the predicted ratio from the Planck best-fit cold dark matter model with a cosmological constant cosmology of r = 0.419.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC00112704
OSTI ID:
1368676
Report Number(s):
BNL-114018-2017-JA; PRLTAO; TRN: US1702752
Journal Information:
Physical Review Letters, Vol. 118, Issue 16; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

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Cited By (13)

Full-sky Gravitational Lensing Simulation for Large-area Galaxy Surveys and Cosmic Microwave Background Experiments text January 2017
Mitigating foreground biases in CMB lensing reconstruction using cleaned gradients journal July 2018
Modeling CMB lensing cross correlations with CLEFT journal August 2017
The Simons Observatory: Science goals and forecasts text January 2018
Cosmological lensing ratios with DES Y1, SPT, and Planck journal May 2019
Full-sky Gravitational Lensing Simulation for Large-area Galaxy Surveys and Cosmic Microwave Background Experiments journal November 2017
Real space lensing reconstruction using cosmic microwave background polarization text January 2017
Controlling and leveraging small-scale information in tomographic galaxy–galaxy lensing journal October 2019
The Simons Observatory: Science goals and forecasts text January 2019
Real space lensing reconstruction using cosmic microwave background polarization journal January 2018
Looking through the same lens: Shear calibration for LSST, Euclid, and WFIRST with stage 4 CMB lensing journal June 2017
Mitigating Foreground Biases in CMB Lensing Reconstruction Using Cleaned Gradients text January 2018
The Simons Observatory: science goals and forecasts journal February 2019

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