SPT-3G D1: Foreground-Robust Lensing Templates for Primordial Gravitational Wave Searches

arXiv:2608.06343 · astro-ph.CO · Submitted 2026-08-06 · Read on arXiv

astro-ph.CO

Submitted: 2026-08-06

Updated: 2026-09-30

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Gravitational Lensing — 14× in this paper · explained in 2 episodes
• Calibration — 10× in this paper · explained in 7 episodes
• Robustness — 6× in this paper · explained in 5 episodes
• South Pole Telescope — 4× in this paper
• Consistency — 3× in this paper · explained in 3 episodes
• Trace — 3× in this paper · explained in 2 episodes
• Anisotropic Filtering — 1× in this paper · explained in 1 episode
• Anisotropy — 1× in this paper · explained in 3 episodes
• Aperture — 1× in this paper · explained in 1 episode
• Frequency Dependence — 1× in this paper · explained in 2 episodes
• Non-Gaussianity — 1× in this paper · explained in 2 episodes
• Weak Lensing — 1× in this paper · explained in 2 episodes

Sources

• Planck 2018 results. VI. Cosmological parameters
• SPT-3G D1: Maps of the millimeter-wave sky from 2019 and 2020 observations of the SPT-3G Main field
• Cosmic Microwave Background Delensing Revisited: Residual Biases and a Simple Fix
• Internal delensing of Planck CMB temperature and polarization
• Impact of internal-delensing biases on searches for primordial B-modes of CMB polarisation
• The Spectrum of the Extragalactic Far Infrared Background from the COBE Firas Observations
• Large-scale Maps of the Cosmic Infrared Background from Planck
• Large-scale galactic-dust-cleaned cosmic infrared background maps from \textit{Planck} PR4 and HI4PI with \texttt{pyilc}
• Efficient Computation of CMB anisotropies in closed FRW models
• A Measurement of Gravitational Lensing of the Cosmic Microwave Background Using SPT-3G 2018 Data
• A Measurement of the Cosmic Microwave Background Lensing Potential and Power Spectrum from 500 deg$^2$ of SPTpol Temperature and Polarization Data
• Delensing the CMB with the cosmic infrared background: the impact of foregrounds
• CMB-S4: Iterative Internal Delensing and $r$ Constraints
• The Simons Observatory: forecasted constraints on primordial gravitational waves with the expanded array of Small Aperture Telescopes

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