First lensing measurements of SZ-detected clusters

Rachel N. McInnes, Felipe Menanteau, Alan F. Heavens, John P. Hughes, Raul Jimenez, Richard Massey, Patrick Simon, Andy Taylor

Research output: Contribution to journalArticlepeer-review

Abstract

We present the first lensing mass measurements of Sunyaev-Zel'dovich (SZ) selected clusters. Using optical imaging from the Southern Cosmology Survey (SCS), we present weak lensing masses for three clusters selected by their SZ emission in the South Pole Telescope (SPT) survey. We confirm that the SZ selection procedure is successful in detecting mass concentrations. We also study the weak lensing signals from 38 optically-selected clusters in similar or equal to 8 deg(2) of the SCS survey. We fit Navarro, Frenk and White (NFW) profiles and find that the SZ clusters have amongst the largest masses, as high as 5 x 10(14) M-circle dot. Using the best-fitting masses for all the clusters, we analytically calculate the expected SZ integrated Y parameter, which we find to be consistent with the SPT observations.

Original languageEnglish
Pages (from-to)L84-L88
Number of pages5
JournalMonthly Notices of the Royal Astronomical Society
Volume399
Issue number1
DOIs
Publication statusPublished - Oct 2009

Keywords

  • gravitational lensing
  • galaxies: clusters: general
  • cosmology: observations
  • GALAXY CLUSTERS
  • DARK-MATTER
  • CONSTRAINTS
  • COSMOLOGY
  • MASS
  • SIGNALS
  • SAMPLE
  • ENERGY

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