CMB/kSZ and Compton-$y$ Maps from 2500 square degrees of SPT-SZ and Planck Survey Data
Abstract
We present component-separated maps of the primary cosmic microwave background/kinematic Sunyaev-Zel'dovich (SZ) amplitude and the thermal SZ Compton- parameter, created using data from the South Pole Telescope (SPT) and the Planck satellite. These maps, which cover the 2500 square degrees of the Southern sky imaged by the SPT-SZ survey, represent a significant improvement over previous such products available in this region by virtue of their higher angular resolution (1.25 arcminutes for our highest resolution Compton- maps) and lower noise at small angular scales. In this work we detail the construction of these maps using linear combination techniques, including our method for limiting the correlation of our lowest-noise Compton- map products with the cosmic infrared background. We perform a range of validation tests on these data products to test our sky modeling and combination algorithms, and we find good performance in all of these tests. Recognizing the potential utility of these data products for a wide range of astrophysical and cosmological analyses, including studies of the gas properties of galaxies, groups, and clusters, we make these products publicly available at http://pole.uchicago.edu/public/data/sptsz_ymap and on the NASA/LAMBDA website.
Keywords
Cite
@article{arxiv.2102.05033,
title = {CMB/kSZ and Compton-$y$ Maps from 2500 square degrees of SPT-SZ and Planck Survey Data},
author = {L. E. Bleem and T. M. Crawford and B. Ansarinejad and B. A. Benson and S. Bocquet and J. E. Carlstrom and C. L. Chang and R. Chown and A. T. Crites and T. de Haan and M. A. Dobbs and W. B. Everett and E. M. George and R. Gualtieri and N. W. Halverson and G. P. Holder and W. L. Holzapfel and J. D. Hrubes and L. Knox and A. T. Lee and D. Luong-Van and D. P. Marrone and J. J. McMahon and S. S. Meyer and M. Millea and L. M. Mocanu and J. J. Mohr and T. Natoli and Y. Omori and S. Padin and C. Pryke and S. Raghunathan and C. L. Reichardt and J. E. Ruhl and K. K. Schaffer and E. Shirokoff and Z. Staniszewski and A. A. Stark and J. D. Vieira and R. Williamson},
journal= {arXiv preprint arXiv:2102.05033},
year = {2022}
}
Comments
Minor changes to match version accepted in ApJS