Weak-lensing mass calibration of the Atacama Cosmology Telescope equatorial Sunyaev-Zeldovich cluster sample with the Canada-France-Hawaii telescope stripe 82 survey

Battaglia, N., Leauthaud, A., Miyatake, H., Hasselfield, M., Gralla, M.B., Allison, R., Bond, J.R., Calabrese, Erminia ORCID: https://orcid.org/0000-0003-0837-0068, Crichton, D., Devlin, M.J., Dunkley, J., Dünner, R., Erben, T., Ferrara, S., Halpern, M., Hilton, M., Hill, J.C., Hincks, A.D., Hlo?ek, R., Huffenberger, K.M., Hughes, J.P., Kneib, J.P., Kosowsky, A., Makler, M., Marriage, T.A., Menanteau, F., Miller, L., Moodley, K., Moraes, B., Niemack, M.D., Page, L., Shan, H., Sehgal, N., Sherwin, B.D., Sievers, J.L., Sifón, C., Spergel, D.N., Staggs, S.T., Taylor, J.E., Thornton, R., Waerbeke, L. van and Wollack, E.J. 2016. Weak-lensing mass calibration of the Atacama Cosmology Telescope equatorial Sunyaev-Zeldovich cluster sample with the Canada-France-Hawaii telescope stripe 82 survey. Journal of Cosmology and Astroparticle Physics 2016 (08) , 013. 10.1088/1475-7516/2016/08/013

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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
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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