A Measurement of CMB Cluster Lensing with SPT and DES Year 1 Data
Abstract
Clusters of galaxies gravitationally lens the cosmic microwave background (CMB) radiation, resulting in a distinct imprint in the CMB on arcminute scales. Measurement of this effect offers a promising way to constrain the masses of galaxy clusters, particularly those at high redshift. We use CMB maps from the South Pole Telescope Sunyaev-Zel'dovich (SZ) survey to measure the CMB lensing signal around galaxy clusters identified in optical imaging from first year observations of the Dark Energy Survey. The cluster catalog used in this analysis contains 3697 members with mean redshift of . We detect lensing of the CMB by the galaxy clusters at significance. Using the measured lensing signal, we constrain the amplitude of the relation between cluster mass and optical richness to roughly precision, finding good agreement with recent constraints obtained with galaxy lensing. The error budget is dominated by statistical noise but includes significant contributions from systematic biases due to the thermal SZ effect and cluster miscentering.
Keywords
Cite
@article{arxiv.1708.01360,
title = {A Measurement of CMB Cluster Lensing with SPT and DES Year 1 Data},
author = {E. J. Baxter and S. Raghunathan and T. M. Crawford and P. Fosalba and Z. Hou and G. P. Holder and Y. Omori and S. Patil and E. Rozo and T. M. C. Abbott and J. Annis and K. Aylor and A. Benoit-Lévy and B. A. Benson and E. Bertin and L. Bleem and E. Buckley-Geer and D. L. Burke and J. Carlstrom and A. Carnero Rosell and M. Carrasco Kind and J. Carretero and C. L. Chang and H-M. Cho and A. T. Crites and M. Crocce and C. E. Cunha and L. N. da Costa and C. B. D'Andrea and C. Davis and T. de Haan and S. Desai and M. A. Dobbs and S. Dodelson and J. P. Dietrich and P. Doel and A. Drlica-Wagner and J. Estrada and W. B. Everett and A. Fausti Neto and B. Flaugher and J. Frieman and J. García-Bellido and E. M. George and E. Gaztanaga and T. Giannantonio and D. Gruen and R. A. Gruendl and J. Gschwend and G. Gutierrez and N. W. Halverson and N. L. Harrington and W. G. Hartley and W. L. Holzapfel and K. Honscheid and J. D. Hrubes and B. Jain and D. J. James and M. Jarvis and T. Jeltema and L. Knox and E. Krause and K. Kuehn and S. Kuhlmann and N. Kuropatkin and O. Lahav and A. T. Lee and E. M. Leitch and T. S. Li and M. Lima and D. Luong-Van and A. Manzotti and M. March and D. P. Marrone and J. L. Marshall and P. Martini and J. J. McMahon and P. Melchior and F. Menanteau and S. S. Meyer and C. J. Miller and R. Miquel and L. M. Mocanu and J. J. Mohr and T. Natoli and B. Nord and R. L. C. Ogando and S. Padin and A. A. Plazas and C. Pryke and D. Rapetti and C. L. Reichardt and A. K. Romer and A. Roodman and J. E. Ruhl and E. Rykoff and M. Sako and E. Sanchez and J. T. Sayre and V. Scarpine and K. K. Schaffer and R. Schindler and M. Schubnell and I. Sevilla-Noarbe and E. Shirokoff and M. Smith and R. C. Smith and M. Soares-Santos and F. Z. Staniszewski and A. Stark and K. Story and E. Suchyta and G. Tarle and D. Thomas and M. A. Troxel and K. Vanderlinde and J. D. Vieira and A. R. Walker and R. Williamson and Y. Zhang and J. Zuntz},
journal= {arXiv preprint arXiv:1708.01360},
year = {2018}
}
Comments
16 pages, 5 figures; replaced to match version accepted by MNRAS