Battaglia, N., Leauthaud, A., Miyatake, H., Hasselfield, M., Gralla, M.B., Allison, R., Bond, J.R., Calabrese, Erminia ![]() |
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Abstract
Mass calibration uncertainty is the largest systematic effect for using clusters of galaxies to constrain cosmological parameters. We present weak lensing mass measurements from the Canada-France-Hawaii Telescope Stripe 82 Survey for galaxy clusters selected through their high signal-to-noise thermal Sunyaev-Zeldovich (tSZ) signal measured with the Atacama Cosmology Telescope (ACT). For a sample of 9 ACT clusters with a tSZ signal-to-noise greater than five the average weak lensing mass is (4.8±0.8) ×1014 M⊙, consistent with the tSZ mass estimate of (4.70±1.0) ×1014 M⊙ which assumes a universal pressure profile for the cluster gas. Our results are consistent with previous weak-lensing measurements of tSZ-detected clusters from the Planck satellite. When comparing our results, we estimate the Eddington bias correction for the sample intersection of Planck and weak-lensing clusters which was previously excluded.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Physics and Astronomy |
Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
Publisher: | IOP Publishing |
ISSN: | 1475-7516 |
Date of First Compliant Deposit: | 7 August 2017 |
Date of Acceptance: | 27 July 2016 |
Last Modified: | 04 Dec 2024 19:45 |
URI: | https://orca.cardiff.ac.uk/id/eprint/103330 |
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