Planck Sunyaev-Zel'dovich cluster mass calibration using Hyper Suprime-Cam weak lensing

Elinor Medezinski, Nicholas Battaglia, Keiichi Umetsu, Masamune Oguri, Hironao Miyatake, Atsushi J. Nishizawa, Cristóbal Sifón, David N. Spergel, I. Non Chiu, Yen Ting Lin, Neta Bahcall, Yutaka Komiyama

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44 Scopus citations


Using ∼140 deg2 Subaru Hyper Suprime-Cam (HSC) survey data, we stack the weak lensing (WL) signal around five Planck clusters found within the footprint. This yields a 15σ detection of the mean Planck cluster mass density profile. The five Planck clusters span a relatively wide mass range, MWL,500c = (2-30) × 1014M with a mean mass of MWL,500c = (4.15±0.61) × 1014M. The ratio of the stacked Planck Sunyaev-Zel'dovich (SZ) mass to the stacked WL mass is (MSZ)/(MWL) = 1 - b = 0.80±0.14. This mass bias is consistent with previous WL mass calibrations of Planck clusters within the errors. We discuss the implications of our findings for the calibration of SZ cluster counts and the much discussed tension between Planck SZ cluster counts and Planck ΣCDM cosmology.

Original languageEnglish (US)
Article numberS28
JournalPublications of the Astronomical Society of Japan
Issue numberSpecial Issue 1
StatePublished - Jan 1 2018

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


  • Clusters
  • Cosmology
  • General-gravitational lensing
  • Observations-dark matter-galaxies
  • Weak-large-scale structure of universe


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