SPT-3G: A Next-Generation Cosmic Microwave Background Polarization Experiment on the South Pole Telescope
Abstract
We describe the design of a new polarization sensitive receiver, SPT-3G, for the 10-meter South Pole Telescope (SPT). The SPT-3G receiver will deliver a factor of ~20 improvement in mapping speed over the current receiver, SPTpol. The sensitivity of the SPT-3G receiver will enable the advance from statistical detection of B-mode polarization anisotropy power to high signal-to-noise measurements of the individual modes, i.e., maps. This will lead to precise (~0.06 eV) constraints on the sum of neutrino masses with the potential to directly address the neutrino mass hierarchy. It will allow a separation of the lensing and inflationary B-mode power spectra, improving constraints on the amplitude and shape of the primordial signal, either through SPT-3G data alone or in combination with BICEP-2/KECK, which is observing the same area of sky. The measurement of small-scale temperature anisotropy will provide new constraints on the epoch of reionization. Additional science from the SPT-3G survey will be significantly enhanced by the synergy with the ongoing optical Dark Energy Survey (DES), including: a 1% constraint on the bias of optical tracers of large-scale structure, a measurement of the differential Doppler signal from pairs of galaxy clusters that will test General Relativity on ~200 Mpc scales, and improved cosmological constraints from the abundance of clusters of galaxies.
Keywords
Cite
@article{arxiv.1407.2973,
title = {SPT-3G: A Next-Generation Cosmic Microwave Background Polarization Experiment on the South Pole Telescope},
author = {B. A. Benson and P. A. R. Ade and Z. Ahmed and S. W. Allen and K. Arnold and J. E. Austermann and A. N. Bender and L. E. Bleem and J. E. Carlstrom and C. L. Chang and H. M. Cho and S. T. Ciocys and J. F. Cliche and T. M. Crawford and A. Cukierman and T. de Haan and M. A. Dobbs and D. Dutcher and W. Everett and A. Gilbert and N. W. Halverson and D. Hanson and N. L. Harrington and K. Hattori and J. W. Henning and G. C. Hilton and G. P. Holder and W. L. Holzapfel and K. D. Irwin and R. Keisler and L. Knox and D. Kubik and C. L. Kuo and A. T. Lee and E. M. Leitch and D. Li and M. McDonald and S. S. Meyer and J. Montgomery and M. Myers and T. Natoli and H. Nguyen and V. Novosad and S. Padin and Z. Pan and J. Pearson and C. L. Reichardt and J. E. Ruhl and B. R. Saliwanchik and G. Simard and G. Smecher and J. T. Sayre and E. Shirokoff and A. A. Stark and K. Story and A. Suzuki and K. L. Thompson and C. Tucker and K. Vanderlinde and J. D. Vieira and A. Vikhlinin and G. Wang and V. Yefremenko and K. W. Yoon},
journal= {arXiv preprint arXiv:1407.2973},
year = {2015}
}
Comments
21 pages, 9 figures. To be published in Proceedings of SPIE Volume 9153. Presented at SPIE Astronomical Telescopes + Instrumentation 2014, conference 9153