Preprint typeset using L ATEX style emulateapj v. 10/09/06 LENSING MEASUREMENTS OF SZ-DISCOVERED CLUSTERS IN THE SOUTHERN COSMOLOGY SURVEY

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 survey (SPT). Curiously, we find on...

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Bibliographic Details
Main Authors: Rachel N. Mcinnes, Felipe Menanteau, Alan F. Heavens, John P. Hughes, Raul Jimenez, Richard Massey, Patrick Simon, Andy N. Taylor
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published:
Subjects:
South Pole
Navarro
South pole
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.245.277
http://arxiv.org/pdf/0903.4410v1.pdf
Description
Summary: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 survey (SPT). Curiously, we find one additional 2.5σ peak in the lensing maps which seems to coincide with a low significance peak in the published SZ maps. We also study 38 optically-selected clusters in ≃ 8 square degrees 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 5×10 14 M⊙. Using the best fit masses for all the clusters, we analytically calculate the expected SZ integrated Y parameter for comparison with the SPT observations.

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