Weak lensing measurement of the mass–richness relation of SDSS redMaPPer clusters
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 (SDSS). We have carefully characterized a broad range of systematic uncertainties, including shear calibration errors, photo-z biases, dilution b...
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OXFORD UNIV PRESS
2017
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ndltd-arizona.edu-oai-arizona.openrepository.com-10150-6239382017-06-07T03:00:35Z Weak lensing measurement of the mass–richness relation of SDSS redMaPPer clusters Simet, Melanie McClintock, Tom Mandelbaum, Rachel Rozo, Eduardo Rykoff, Eli Sheldon, Erin Wechsler, Risa H. Univ Arizona, Dept Phys gravitational lensing: weak galaxies: clusters: general 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 (SDSS). We have carefully characterized a broad range of systematic uncertainties, including shear calibration errors, photo-z biases, dilution by member galaxies, source obscuration, magnification bias, incorrect assumptions about cluster mass profiles, cluster centring, halo triaxiality and projection effects. We also 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 5570 clusters from 0.1 <= z <= 0.33, the normalization of our power-law mass versus. relation is log(10)[M-200m/ h-M-1(circle dot)] = 14.344 +/- 0.021 (statistical) +/- 0.023 (systematic) at a richness lambda= 40, a 7 per cent calibration uncertainty, with a power-law index of 1.33(- 0.10)(+0.09) (1 sigma). The detailed systematics characterization in this work renders it the definitive weak lensing mass calibration for SDSS redMaPPer clusters at this time. 2017-04-21 Article Weak lensing measurement of the mass–richness relation of SDSS redMaPPer clusters 2017, 466 (3):3103 Monthly Notices of the Royal Astronomical Society 0035-8711 1365-2966 10.1093/mnras/stw3250 http://hdl.handle.net/10150/623938 http://arizona.openrepository.com/arizona/handle/10150/623938 Monthly Notices of the Royal Astronomical Society en https://academic.oup.com/mnras/article-lookup/doi/10.1093/mnras/stw3250 © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society OXFORD UNIV PRESS |
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en |
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gravitational lensing: weak galaxies: clusters: general |
spellingShingle |
gravitational lensing: weak galaxies: clusters: general 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 |
description |
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 (SDSS). We have carefully characterized a broad range of systematic uncertainties, including shear calibration errors, photo-z biases, dilution by member galaxies, source obscuration, magnification bias, incorrect assumptions about cluster mass profiles, cluster centring, halo triaxiality and projection effects. We also 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 5570 clusters from 0.1 <= z <= 0.33, the normalization of our power-law mass versus. relation is log(10)[M-200m/ h-M-1(circle dot)] = 14.344 +/- 0.021 (statistical) +/- 0.023 (systematic) at a richness lambda= 40, a 7 per cent calibration uncertainty, with a power-law index of 1.33(- 0.10)(+0.09) (1 sigma). The detailed systematics characterization in this work renders it the definitive weak lensing mass calibration for SDSS redMaPPer clusters at this time. |
author2 |
Univ Arizona, Dept Phys |
author_facet |
Univ Arizona, Dept Phys Simet, Melanie McClintock, Tom Mandelbaum, Rachel Rozo, Eduardo Rykoff, Eli Sheldon, Erin Wechsler, Risa H. |
author |
Simet, Melanie McClintock, Tom Mandelbaum, Rachel Rozo, Eduardo Rykoff, Eli Sheldon, Erin Wechsler, Risa H. |
author_sort |
Simet, Melanie |
title |
Weak lensing measurement of the mass–richness relation of SDSS redMaPPer clusters |
title_short |
Weak lensing measurement of the mass–richness relation of SDSS redMaPPer clusters |
title_full |
Weak lensing measurement of the mass–richness relation of SDSS redMaPPer clusters |
title_fullStr |
Weak lensing measurement of the mass–richness relation of SDSS redMaPPer clusters |
title_full_unstemmed |
Weak lensing measurement of the mass–richness relation of SDSS redMaPPer clusters |
title_sort |
weak lensing measurement of the mass–richness relation of sdss redmapper clusters |
publisher |
OXFORD UNIV PRESS |
publishDate |
2017 |
url |
http://hdl.handle.net/10150/623938 http://arizona.openrepository.com/arizona/handle/10150/623938 |
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