Constraints on $Λ$CDM Extensions from the SPT-3G 2018 $EE$ and $TE$ Power Spectra
L. Balkenhol, D. Dutcher, P. A. R. Ade, Z. Ahmed, E. Anderes, A. J. Anderson, M. Archipley, J. S. Avva, K. Aylor, P. S. Barry, R. Basu Thakur, K. Benabed, A. N.… 展开作者
L. Balkenhol, D. Dutcher, P. A. R. Ade, Z. Ahmed, E. Anderes, A. J. Anderson, M. Archipley, J. S. Avva, K. Aylor, P. S. Barry, R. Basu Thakur, K. Benabed, A. N. Bender, B. A. Benson, F. Bianchini, L. E. Bleem, F. R. Bouchet, L. Bryant, K. Byrum, J. E. Carlstrom, F. W. Carter, T. W. Cecil, C. L. Chang, P. Chaubal, G. Chen, H. -M. Cho, T. -L. Chou, J. -F. Cliche, T. M. Crawford, A. Cukierman, C. Daley, T. de Haan, E. V. Denison, K. Dibert, J. Ding, M. A. Dobbs, W. Everett, C. Feng, K. R. Ferguson, A. Foster, J. Fu, S. Galli, A. E. Gambrel, R. W. Gardner, N. Goeckner-Wald, R. Gualtieri, S. Guns, N. Gupta, R. Guyser, N. W. Halverson, A. H. Harke-Hosemann, N. L. Harrington, J. W. Henning, G. C. Hilton, E. Hivon, G. P. Holder, W. L. Holzapfel, J. C. Hood, D. Howe, N. Huang, K. D. Irwin, O. B. Jeong, M. Jonas, A. Jones, T. S. Khaire, L. Knox, A. M. Kofman, M. Korman, D. L. Kubik, S. Kuhlmann, C. -L. Kuo, A. T. Lee, E. M. Leitch, A. E. Lowitz, C. Lu, S. S. Meyer, D. Michalik, M. Millea, J. Montgomery, A. Nadolski, T. Natoli, H. Nguyen, G. I. Noble, V. Novosad, Y. Omori, S. Padin, Z. Pan, P. Paschos, J. Pearson, C. M. Posada, K. Prabhu, W. Quan, A. Rahlin, C. L. Reichardt, D. Riebel, B. Riedel, M. Rouble, J. E. Ruhl, J. T. Sayre, E. Schiappucci, E. Shirokoff, G. Smecher, J. A. Sobrin, A. A. Stark, J. Stephen, K. T. Story, A. Suzuki, K. L. Thompson, B. Thorne, C. Tucker, C. Umilta, L. R. Vale, K. Vanderlinde, J. D. Vieira, G. Wang, N. Whitehorn, W. L. K. Wu, V. Yefremenko, K. W. Yoon, M. R. Young
We present constraints on extensions to the $Λ$CDM cosmological model from measurements of the $E$-mode polarization auto-power spectrum and the temperature-$E$-mode cross-power spectrum of the cosmic microwave background (CMB) made using 2018 SPT-3G data. The extensions considered vary the primordial helium abundance, the effective number of relativistic degrees of freedom, the sum of neutrino masses, the relativistic energy density and mass of a sterile neutrino, and the mean spatial curvature. We do not find clear evidence for any of these extensions, from either the SPT-3G 2018 dataset alone or in combination with baryon acoustic oscillation and \textit{Planck} data. None of these model extensions significantly relax the tension between Hubble-constant, $H_0$, constraints from the CMB and from distance-ladder measurements using Cepheids and supernovae. The addition of the SPT-3G 2018 data to \textit{Planck} reduces the square-root of the determinants of the parameter covariance matrices by factors of $1.3 - 2.0$ across these models, signaling a substantial reduction in the allowed parameter volume. We also explore CMB-based constraints on $H_0$ from combined SPT, \textit{Planck}, and ACT DR4 datasets. While individual experiments see some indications of different $H_0$ values between the $TT$, $TE$, and $EE$ spectra, the combined $H_0$ constraints are consistent between the three spectra. For the full combined datasets, we report $H_0 = 67.49 \pm 0.53\,\mathrm{km\,s^{-1}\,Mpc^{-1}}$, which is the tightest constraint on $H_0$ from CMB power spectra to date and in $4.1\,σ$ tension with the most precise distance-ladder-based measurement of $H_0$. The SPT-3G survey is planned to continue through at least 2023, with existing maps of combined 2019 and 2020 data already having $\sim3.5\times$ lower noise than the maps used in this analysis.
Using SPTpol, Planck 2015, and non-CMB data to constrain tilted spatially-flat and untilted non-flat $Λ$CDM, XCDM, and $ϕ$CDM dark energy inflation cosmologies
Exploring $Λ$CDM extensions with SPT-3G and Planck data: 4$σ$ evidence for neutrino masses and implications of extended dark energy models for cosmological tensions
Dark energy after pre-recombination early dark energy in light of DESI DR2 and the latest ACT and SPT data
Hangzhou Institute for Advanced Study, UCAS（杭州高等研究院）；University of Chinese Academy of Sciences（中国科学院大学）；International Center for Theoretical Physics Asia-Pacific（国际理论物理中心亚太地区）；Institute of Theoretical Physics, Chinese Academy of Sciences（中国科学院理论物理研究所）
Relaxing DESI DR2 BAO Constraints on $\sum m_ν$ with Planck and SPT-3G 2018 in the Context of SPT D1
Institute for Nuclear Research of the Russian Academy of Sciences（俄罗斯科学院核物理研究所）；Moscow Institute of Physics and Technology（莫斯科物理技术学院）；M.V. Lomonosov Moscow State University（莫斯科国立罗蒙诺索夫大学）
High $H_0$ Values from CMB E-mode Data: A Clue for Resolving the Hubble Tension?
由普朗克、ACTPol和SPTPol测量的E模式（EE）CMB功率谱将哈勃常数约束为标准$Λ$ CDM模型（后验均值和中心68%区间界限）内的$70.0\pm2.7$、$72.4^{+3.9}_{-4.8}$和$73.1^{+3.3}_{-3.9}$ km s $^{-1}$ Mpc $^{-1}$。这些值高于普朗克温度（TT）功率谱的限制，并与造父变星超新星距离阶梯测量$H_0=73.2\pm1.3$ km s $^{-1}$ Mpc $^{-1}$一致。如果这种对更高值的偏好在联合分析中得到加强，它可能会为哈勃分歧的解决提供一个有趣的暗示。然而，我们发现，结合普朗克，ACTPol，和SPTPol EE的可能性产生$H_0=68.7\pm1.3$ km s $^{-1}$ Mpc $^{-1}$，$2.4σ$低于距离阶梯测量。这是由于不同的简并方向在整个参数空间，特别是涉及重子密度，$Ω_bh^2$，和标量倾斜，$n_s$，所产生的灵敏度不同的多极范围。我们表明，E-模式$Λ$ CDM约束是一致的，在$1.4σ$内的不同实验，并与普朗克TT结果在$0.8σ$。结合普朗克，ACTPol，和SPTPol EE数据约束的现象学透镜振幅，$A_L=0.89\pm0.10$，与预期值一致的单位。
SPT-3G D1: Quadratic-Estimator CMB Lensing Reconstruction and Cosmology
University of Chicago（芝加哥大学）；Kavli Institute for Cosmological Physics, University of Chicago（芝加哥大学卡弗里宇宙物理研究所）；NSF-Simons AI Institute for the Sky (SkAI)（NSF-Simons 天空人工智能研究所 (SkAI)）；California Institute of Technology（加州理工学院）；Kavli Institute for Particle Astrophysics and Cosmology, Stanford University（斯坦福大学卡弗里粒子天体物理与宇宙学研究所）；SLAC National Accelerator Laboratory（SLAC国家加速器实验室）；Stanford University（斯坦福大学）；Sorbonne Université（索邦大学）；CNRS（法国国家科学研究中心）；Institut d’Astrophysique de Paris（巴黎天体物理学研究所）；Université Paris-Saclay（巴黎萨克雷大学）；Université Paris Cité（巴黎西岱大学）；CEA（法国原子能和替代能源委员会）；Department of Astronomy, University of Illinois Urbana-Champaign（伊利诺伊大学厄巴纳-香槟分校天文学系）
SPT-3G D1: CMB temperature and polarization power spectra and cosmology from 2019 and 2020 observations of the SPT-3G Main field
Sorbonne Université（索邦大学）；CNRS（法国国家科学研究中心）；Institut d’Astrophysique de Paris（巴黎天体物理研究所）；Argonne National Laboratory（阿贡国家实验室）；University of Chicago（芝加哥大学）；Kavli Institute for Cosmological Physics（卡弗里宇宙学物理研究所）；Kavli Institute for Particle Astrophysics and Cosmology（卡弗里粒子天体物理与宇宙学研究所）；Stanford University（斯坦福大学）；University of California, Berkeley（加州大学伯克利分校）
Extending empirical constraints on the SZ-mass scaling relation to higher redshifts via HST weak lensing measurements of nine clusters from the SPT-SZ survey at $z\gtrsim1$
Improving cosmological constraints from galaxy cluster number counts with CMB-cluster-lensing data: Results from the SPT-SZ survey and forecasts for the future
Spectral characterization and performance of SPT-SLIM on-chip filterbank spectrometers
University of Chicago（芝加哥大学）；Kavli Institute for Cosmological Physics, University of Chicago（芝加哥大学卡弗里宇宙物理研究所）；Cardiff University（卡迪夫大学）；McGill University（麦吉尔大学）；Fermi National Accelerator Laboratory（费米国家加速器实验室）；Enrico Fermi Institute, University of Chicago（芝加哥大学恩里科·费米研究所）；Argonne National Laboratory（阿贡国家实验室）；Boston University（波士顿大学）
First constraints on causal sources of primordial gravitational waves from BICEP/Keck, SPTpol, SPT-3G, Planck and WMAP $B$-mode data
Fermi National Accelerator Laboratory（费米国家加速器实验室）；Kavli Institute for Cosmological Physics, University of Chicago（芝加哥大学卡弗里宇宙物理研究所）；Leinweber Institute for Theoretical Physics, Stanford University（斯坦福大学莱因韦伯理论物理研究所）；School of Physics, University of Melbourne（墨尔本大学物理学院）；Department of Physics and Astronomy, Seoul National University（首尔大学物理与天文学系）；Department of Astronomy and Astrophysics, University of Chicago（芝加哥大学天文与天体物理学系）；Department of Physics and Astronomy, University of Notre Dame（圣母大学物理与天文学系）；Sorbonne Université, CNRS, UMR 7095, Institut d’Astrophysique de Paris（索邦大学，法国国家科学研究中心，UMR 7095，巴黎天体物理研究所）
CMB Lensing Reconstruction Using Two Years of Temperature Data from the SPT-3G Summer Survey
University of Melbourne（墨尔本大学）；National Center for Supercomputing Applications（国家超级计算应用中心）；Sorbonne Université（索邦大学）；Institut d’Astrophysique de Paris（巴黎天体物理学研究所）；Kavli Institute for Cosmological Physics, University of Chicago（芝加哥大学卡弗里宇宙物理学研究所）；Fermi National Accelerator Laboratory（费米国家加速器实验室）；Department of Astronomy and Astrophysics, University of Chicago（芝加哥大学天文与天体物理系）
Cluster Cosmology Constraints from the 2500 deg$^2$ SPT-SZ Survey: Inclusion of Weak Gravitational Lensing Data from Magellan and the Hubble Space Telescope
