The Cosmic Microwave Background Optical Depth Constrains the Duration of Reionization by Christopher Cain, Alexander Van Engelen, Kevin S. Croker, Darby Kramer, Anson D’Aloisio, Garett Lopez

“…We compare low and high values of τ _CMB to upper limits on the patchy kinematic Sunyaev–Zel'dovich (pkSZ) effect, another CMB observable that constrains reionization’s duration, and find that a value of τ _CMB  = 0.09 is in ≈2 σ tension with existing limits on the pkSZ from the South Pole Telescope (SPT). The strength of this tension is sensitive to the choices involved in modeling the other CMB foregrounds in the SPT measurement, and in the modeling of the pkSZ signal itself.…”
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Detection of Thermal Emission at Millimeter Wavelengths from Low-Earth Orbit Satellites by Allen Foster, A. Chokshi, A. J. Anderson, B. Ansarinejad, M. Archipley, L. Balkenhol, K. Benabed, A. N. Bender, D. R. Barron, B. A. Benson, F. Bianchini, L. E. Bleem, F. R. Bouchet, L. Bryant, E. Camphuis, J. E. Carlstrom, C. L. Chang, P. Chaubal, P. M. Chichura, T. -L. Chou, A. Coerver, T. M. Crawford, C. Daley, T. de Haan, K. R. Dibert, M. A. Dobbs, A. Doussot, D. Dutcher, W. Everett, C. Feng, K. R. Ferguson, K. Fichman, S. Galli, A. E. Gambrel, R. W. Gardner, F. Ge, N. Goeckner-Wald, R. Gualtieri, F. Guidi, S. Guns, N. W. Halverson, E. Hivon, G. P. Holder, W. L. Holzapfel, J. C. Hood, A. Hryciuk, N. Huang, F. Kéruzoré, A. R. Khalife, L. Knox, K. Kornoelje, M. Korman, C. -L. Kuo, K. Levy, A. E. Lowitz, C. Lu, A. Maniyar, E. S. Martsen, F. Menanteau, M. Millea, J. Montgomery, Y. Nakato, T. Natoli, G. I. Noble, Y. Omori, Z. Pan, P. Paschos, K. A. Phadke, A. W. Pollak, K. Prabhu, W. Quan, M. Rahimi, A. Rahlin, C. L. Reichardt, M. Rouble, J. E. Ruhl, E. Schiappucci, J. A. Sobrin, A. A. Stark, J. Stephen, C. Tandoi, B. Thorne, C. Trendafilova, C. Umilta, J. D. Vieira, A. Vitrier, Y. Wan, N. Whitehorn, W. L. K. Wu, M. R. Young, J. A. Zebrowski

“…The detection of satellite thermal emission at millimeter wavelengths is presented using data from the 3rd-Generation receiver on the South Pole Telescope (SPT-3G). This represents the first reported detection of thermal emission from artificial satellites at millimeter wavelengths. …”
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Role of Nonthermal Processes in the Quiescent and Active Millimeter Spectrum of a Young M Dwarf by Atul Mohan, Peter H. Hauschildt, Birgit Fuhrmeister, Surajit Mondal, Vladimir Airapetian, Sven Wedemeyer

“…The mean flare luminosity (∼2–5 × 10 ^15 erg s ^−1 Hz ^−1 ) and duration (18 ± 2 s) are comparable to flares reported in AU Mic and Proxima Cen, but 100–1000 times weaker than the minutes-long dM flares observed by the South Pole Telescope.…”
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Constraints on Nonthermal Pressure at Galaxy Cluster Outskirts from a Joint SPT and XMM-Newton Analysis by Arnab Sarkar, Michael McDonald, Lindsey Bleem, Mark Bautz, Bradford A. Benson, Priyanka Chakraborty, Catherine E. Grant, Christine Jones, Florian Kéruzoré, Eric D. Miller, Scott Randall, Charles Romero, Taweewat Somboonpanyakul, Yuanyuan Su

“…We present joint South Pole Telescope and XMM-Newton observations of eight massive galaxy clusters (0.8–2 × 10 ^15 M _⊙ ) spanning a redshift range of 0.16–0.35. …”
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Kinematic Analysis of z = 4.3 Galaxies in the SPT2349–56 Protocluster Core by Aparna Venkateshwaran, Axel Weiss, Nikolaus Sulzenauer, Karl Menten, Manuel Aravena, Scott C. Chapman, Anthony Gonzalez, Gayathri Gururajan, Christopher C. Hayward, Ryley Hill, Cassie Reuter, Justin S. Spilker, Joaquin D. Vieira

“…SPT2349−56 is a protocluster discovered in the 2500 deg ^2 South Pole Telescope (SPT) survey. In this paper, we study the kinematics of the galaxies found in the core of SPT2349−56 using high-resolution (1.55 kpc spatial resolution at z = 4.303) redshifted [C ii ] 158 μ m data. …”
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Strong-lensing Analysis of SPT-CL J2325−4111 and SPT-CL J0049−2440, Two Powerful Cosmic Telescopes (RE > 40″) from the SPT Clusters Sample by Guillaume Mahler, Keren Sharon, Matthew Bayliss, Lindsey. E. Bleem, Mark Brodwin, Benjamin Floyd, Raven Gassis, Michael D. Gladders, Gourav Khullar, Juan D. Remolina González, Arnab Sarkar

“…We report the results from a study of two massive ( M _500 _c > 6.0 × 10 ^14 M _⊙ ) strong-lensing clusters selected from the South Pole Telescope cluster survey for their large Einstein radius ( R _E > 40″), SPT-CL J2325−4111 and SPT-CL J0049−2440. …”
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Measurement and Modeling of Polarized Atmosphere at the South Pole with SPT-3G by A. Coerver, J. A. Zebrowski, S. Takakura, W. L. Holzapfel, P. A. R. Ade, A. J. Anderson, Z. Ahmed, B. Ansarinejad, M. Archipley, L. Balkenhol, D. Barron, K. Benabed, A. N. Bender, B. A. Benson, F. Bianchini, L. E. Bleem, F. R. Bouchet, L. Bryant, E. Camphuis, J. E. Carlstrom, T. W. Cecil, C. L. Chang, P. Chaubal, P. M. Chichura, A. Chokshi, T.-L. Chou, T. M. Crawford, A. Cukierman, C. Daley, T. de Haan, K. R. Dibert, M. A. Dobbs, A. Doussot, D. Dutcher, W. Everett, C. Feng, K. R. Ferguson, K. Fichman, A. Foster, S. Galli, A. E. Gambrel, R. W. Gardner, F. Ge, N. Goeckner-Wald, R. Gualtieri, F. Guidi, S. Guns, N. W. Halverson, E. Hivon, G. P. Holder, J. C. Hood, A. Hryciuk, N. Huang, F. Kéruzoré, A. R. Khalife, L. Knox, M. Korman, K. Kornoelje, C.-L. Kuo, A. T. Lee, K. Levy, A. E. Lowitz, C. Lu, A. Maniyar, E. S. Martsen, F. Menanteau, M. Millea, J. Montgomery, Y. Nakato, T. Natoli, G. I. Noble, V. Novosad, Y. Omori, S. Padin, Z. Pan, P. Paschos, K. A. Phadke, A. W. Pollak, K. Prabhu, W. Quan, M. Rahimi, A. Rahlin, C. L. Reichardt, M. Rouble, J. E. Ruhl, E. Schiappucci, G. Smecher, J. A. Sobrin, A. A. Stark, J. Stephen, A. Suzuki, C. Tandoi, K. L. Thompson, B. Thorne, C. Trendafilova, C. Tucker, C. Umilta, J. D. Vieira, A. Vitrier, Y. Wan, G. Wang, N. Whitehorn, W. L. K. Wu, V. Yefremenko, M. R. Young

“…These measurements make use of data from the SPT-3G receiver on the South Pole Telescope in three frequency bands centered at 95, 150, and 220 GHz. …”
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