skip to main content

DOE PAGESDOE PAGES

Title: Weak lensing measurement of the mass–richness relation of SDSS redMaPPer clusters

Here, we perform a measurement of the mass–richness relation of the redMaPPer galaxy cluster catalogue using weak lensing data from the Sloan Digital Sky Survey. We carefully characterized a broad range of systematic uncertainties, including shear calibration errors, photo-zz biases, dilution by member galaxies, source obscuration, magnification bias, incorrect assumptions about cluster mass profiles, cluster centering, halo triaxiality, and projection effects. We then compare measurements of the lensing signal from two independently-produced shear and photometric redshift catalogues to characterize systematic errors in the lensing signal itself. Using a sample of 5,570 clusters from 0.1 ≤ zz ≤ 0.33, the normalization of our power-law mass vs. λ relation is log 10[M 200m/h -1 M ] = 14.344 ± 0.021 (statistical) ±0.023 (systematic) at a richness λ = 40, a 7 per cent calibration uncertainty, with a power-law index of 1.33+0.09-0.101.33$$+0.09\atop{-0.10}$$ (1σ). Finally, the detailed systematics characterization in this work renders it the definitive weak lensing mass calibration for SDSS redMaPPer clusters at this time.
Authors:
 [1] ;  [2] ;  [1] ;  [2] ;  [3] ;  [4] ;  [5]
  1. Carnegie Mellon Univ., Pittsburgh, PA (United States). McWilliams Center for Cosmology
  2. Univ. of Arizona, Tucson, AZ (United States). Dept. of Physics
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States). Kavli Inst. for Particle Astrophysics and Cosmology
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States). Kavli Inst. for Particle Astrophysics and Cosmology; Stanford Univ., CA (United States). Dept. of Physics
Publication Date:
Report Number(s):
BNL-112547-2016-JA
Journal ID: ISSN 0035-8711; KA2301020
Grant/Contract Number:
SC00112704; AC02-76SF00515; AC02-98CH10886; NSF-AST-1211838
Type:
Accepted Manuscript
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Name: Monthly Notices of the Royal Astronomical Society; Journal ID: ISSN 0035-8711
Publisher:
Royal Astronomical Society
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; gravitational lensing: weak; galaxies: clusters: general
OSTI Identifier:
1336104
Alternate Identifier(s):
OSTI ID: 1361147

Simet, Melanie, McClintock, Tom, Mandelbaum, Rachel, Rozo, Eduardo, Rykoff, Eli, Sheldon, Erin, and Wechsler, Risa H. Weak lensing measurement of the mass–richness relation of SDSS redMaPPer clusters. United States: N. p., Web. doi:10.1093/mnras/stw3250.
Simet, Melanie, McClintock, Tom, Mandelbaum, Rachel, Rozo, Eduardo, Rykoff, Eli, Sheldon, Erin, & Wechsler, Risa H. Weak lensing measurement of the mass–richness relation of SDSS redMaPPer clusters. United States. doi:10.1093/mnras/stw3250.
Simet, Melanie, McClintock, Tom, Mandelbaum, Rachel, Rozo, Eduardo, Rykoff, Eli, Sheldon, Erin, and Wechsler, Risa H. 2016. "Weak lensing measurement of the mass–richness relation of SDSS redMaPPer clusters". United States. doi:10.1093/mnras/stw3250. https://www.osti.gov/servlets/purl/1336104.
@article{osti_1336104,
title = {Weak lensing measurement of the mass–richness relation of SDSS redMaPPer clusters},
author = {Simet, Melanie and McClintock, Tom and Mandelbaum, Rachel and Rozo, Eduardo and Rykoff, Eli and Sheldon, Erin and Wechsler, Risa H.},
abstractNote = {Here, we perform a measurement of the mass–richness relation of the redMaPPer galaxy cluster catalogue using weak lensing data from the Sloan Digital Sky Survey. We carefully characterized a broad range of systematic uncertainties, including shear calibration errors, photo-zz biases, dilution by member galaxies, source obscuration, magnification bias, incorrect assumptions about cluster mass profiles, cluster centering, halo triaxiality, and projection effects. We then compare measurements of the lensing signal from two independently-produced shear and photometric redshift catalogues to characterize systematic errors in the lensing signal itself. Using a sample of 5,570 clusters from 0.1 ≤ zz ≤ 0.33, the normalization of our power-law mass vs. λ relation is log10[M200m/h-1 M⊙] = 14.344 ± 0.021 (statistical) ±0.023 (systematic) at a richness λ = 40, a 7 per cent calibration uncertainty, with a power-law index of 1.33+0.09-0.101.33$+0.09\atop{-0.10}$ (1σ). Finally, the detailed systematics characterization in this work renders it the definitive weak lensing mass calibration for SDSS redMaPPer clusters at this time.},
doi = {10.1093/mnras/stw3250},
journal = {Monthly Notices of the Royal Astronomical Society},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {12}
}