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

Battaglia, A. Leauthaud, H. Miyatake, M. Hasselfield, M. B. Gralla, R. Allison, J. R. Bond, E. Calabrese, D. Crichton, M. J. Devlin, J. Dunkley, R. Dünner, T. Erben, S. Ferrara, M. Halpern, M. Hilton, J. C. Hill, A. D. Hincks, R. Hložek, K. M. HuffenbergerJ. P. Hughes, J. P. Kneib, A. Kosowsky, M. Makler, T. A. Marriage, F. Menanteau, L. Miller, K. Moodley, B. Moraes, M. D. Niemack, L. Page, H. Shan, N. Sehgal, B. D. Sherwin, J. L. Sievers, C. Sifón, D. N. Spergel, S. T. Staggs, J. E. Taylor, R. Thornton, L. Van Waerbeke, E. J. Wollack

Research output: Contribution to journalReview article

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 Mo, consistent with the tSZ mass estimate of (4.70±1.0) ×1014 Mo 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.

Original languageEnglish (US)
Article number013
JournalJournal of Cosmology and Astroparticle Physics
Volume2016
Issue number8
DOIs
StatePublished - Aug 8 2016

Keywords

  • Sunyaev-Zeldovich effect
  • galaxy clusters
  • gravitational lensing

ASJC Scopus subject areas

  • Astronomy and Astrophysics

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    Battaglia, Leauthaud, A., Miyatake, H., Hasselfield, M., Gralla, M. B., Allison, R., Bond, J. R., Calabrese, E., Crichton, D., Devlin, M. J., Dunkley, J., Dünner, R., Erben, T., Ferrara, S., Halpern, M., Hilton, M., Hill, J. C., Hincks, A. D., Hložek, R., ... 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(8), [013]. https://doi.org/10.1088/1475-7516/2016/08/013