SPT-3G: a next-generation cosmic microwave background polarization experiment on the South Pole telescope

• Main Authors: Benson, B. A., Ade, P. A. R., Ahmed, Z., Allen, S. W., Arnold, K., Austermann, J. E., Bender, A. N., Bleem, L. E., Carlstrom, J. E., Chang, C. L., Cho, H. M., Cliche, J. F., Crawford, T. M., Cukierman, A., de Haan, T., Dobbs, M. A., Dutcher, D., Everett, W., Gilbert, A., Halverson, N. W., Hanson, D., Harrington, N. L., Hattori, K., Henning, J. W., Hilton, G. C., Holder, G. P., Holzapfel, W. L., Irwin, K. D., Keisler, R., Knox, L., Kubik, D., Kuo, C. L., Lee, A. T., Leitch, E. M., Li, D., McDonald, M., Meyer, S. S., Montgomery, J., Myers, M., Natoli, T., Nguyen, H., Novosad, V., Padin, S., Pan, Z., Pearson, J., Reichardt, C., Ruhl, J. E., Saliwanchik, B. R., Simard, G., Smecher, G., Sayre, J. T., Shirokoff, E., Stark, A. A., Story, K., Suzuki, A., Thompson, K. L., Tucker, C., Vanderlinde, K., Vieira, J. D., Vikhlinin, A., Wang, G., Yefremenko, V., Yoon, K. W.
• Other Authors: MIT Kavli Institute for Astrophysics and Space Research
• Format: Article in Journal/Newspaper
• Language: English
• Published: SPIE 2019
• Subjects: South Pole; South pole
• Online Access: https://hdl.handle.net/1721.1/137444

© 2014 SPIE. 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, spt-pol. 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 bicep2/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 ∼200Mpc scales, and improved cosmological constraints from the abundance of clusters of galaxies.