Explanipedia

Towards constraining cosmological parameters with SPT-3G observations of 25% of the sky Open

A. Vitrier, E. Camphuis, A.J Anderson, M. Archipley, K. Benabed , et al. · 2025

The South Pole Telescope (SPT), using its third-generation camera, SPT-3G, is conducting observations of the cosmic microwave background (CMB) in temperature and polarization across approximately 10 000 deg$^2$ of the sky at 95, 150, and 2…

SPT-3G D1: Axion Early Dark Energy with CMB experiments and DESI Open

A. R. Khalife, L. Balkenhol, E. Camphuis, A.J Anderson, Behzad Ansarinejad , et al. · 2025

We present the most up-to-date constraints on axion early dark energy (AEDE) from cosmic microwave background (CMB) and baryon acoustic oscillation (BAO) measurements. In particular, we assess the impact of data from ground-based CMB exper…

SPT-3G D1: CMB temperature and polarization power spectra and cosmology from 2019 and 2020 observations of the SPT-3G Main field Open

E. Camphuis, Wei Quan, L. Balkenhol, A. R. Khalife, Fan Ge , et al. · 2025

We present measurements of the temperature and E-mode polarization angular power spectra of the cosmic microwave background (CMB) from observations of 4% of the sky with SPT-3G, the current camera on the South Pole Telescope (SPT). The map…

Millimeter-wave observations of Euclid Deep Field South using the South Pole Telescope: A data release of temperature maps and catalogs Open

M. Archipley, A Hryciuk, L. E. Bleem, K. Kornoelje, Matthias Klein , et al. · 2025

Context. The South Pole Telescope third-generation camera (SPT-3G) has observed over 10,000 square degrees of sky at 95, 150, and 220 GHz (3.3, 2.0, 1.4 mm, respectively) overlapping the ongoing 14,000 square-degree Euclid Wide Survey. The…

Constraints on Inflationary Gravitational Waves with Two Years of SPT-3G Data Open

J. A. Zebrowski, C. L. Reichardt, A.J Anderson, Behzad Ansarinejad, M. Archipley , et al. · 2025

We present a measurement of the $B$-mode polarization power spectrum of the cosmic microwave background anisotropies at 32 $\le$ $\ell$ $<$ 502 for three bands centered at 95, 150, and 220 GHz using data from the SPT-3G receiver on the Sou…

The SPT-Deep Cluster Catalog: Sunyaev-Zel'dovich Selected Clusters from Combined SPT-3G and SPTpol Measurements over 100 Square Degrees Open

K. Kornoelje, L. E. Bleem, E. S. Rykoff, T. Abbott, P. A. R. Ade , et al. · 2025

We present a catalog of 500 galaxy cluster candidates in the SPT-Deep field: a 100 deg$^2$ field that combines data from the SPT-3G and SPTpol surveys to reach noise levels of 3.0, 2.2, and 9.0 $\mu$K-arcmin at 95, 150, and 220 GHz, respec…

Detection of Thermal Emission at Millimeter Wavelengths from Low-Earth Orbit Satellites Open

A. Foster, Arati Chokshi, A. J. Anderson, Behzad Ansarinejad, M. Archipley , et al. · 2025

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 arti…

Unified and consistent structure growth measurements from joint ACT, SPT and \textit{Planck} CMB lensing Open

Frank J. Qu, Fei Ge, W. L. K. Wu, Irene Abril-Cabezas, Mathew S. Madhavacheril , et al. · 2025

We present the tightest cosmic microwave background (CMB) lensing constraints to date on the growth of structure by combining CMB lensing measurements from the Atacama Cosmology Telescope (ACT), the South Pole Telescope (SPT) and \textit{P…

The SPT-Deep Cluster Catalog: Sunyaev-Zel'dovich Selected Clusters from Combined SPT-3G and SPTpol Measurements over 100 Square Degrees Open

K. Kornoelje, L. E. Bleem, E. S. Rykoff, T. M. C. Abbott, P. A. R. Ade , et al. · 2025

We present a catalog of 500 galaxy cluster candidates in the SPT-Deep field: a 100 deg$^2$ field that combines data from the SPT-3G and SPTpol surveys to reach noise levels of 3.0, 2.2, and 9.0 $\mu$K-arcmin at 95, 150, and 220 GHz, respec…

Pointing Accuracy Improvements for the South Pole Telescope with Machine Learning Open

P. M. Chichura, A. Rahlin, A. J. Anderson, Behzad Ansarinejad, M. Archipley , et al. · 2024

We present improvements to the pointing accuracy of the South Pole Telescope (SPT) using machine learning. The ability of the SPT to point accurately at the sky is limited by its structural imperfections, which are impacted by the extreme …

Cosmology From CMB Lensing and Delensed EE Power Spectra Using 2019-2020 SPT-3G Polarization Data Open

Fan Ge, M. Millea, E. Camphuis, C. Daley, N. Huang , et al. · 2024

From CMB polarization data alone we reconstruct the CMB lensing power spectrum, comparable in overall constraining power to previous temperature-based reconstructions, and an unlensed E-mode power spectrum. The observations, taken in 2019 …

Testing the ΛCDM Cosmological Model with Forthcoming Measurements of the Cosmic Microwave Background with SPT-3G Open

K. Prabhu, S. Raghunathan, M. Millea, G.P Lynch, P. A. R. Ade , et al. · 2024

We forecast constraints on cosmological parameters enabled by three surveys conducted with SPT-3G, the third-generation camera on the South Pole Telescope. The surveys cover separate regions of 1500, 2650, and 6000 deg 2 to different depth…

Mass calibration of DES Year-3 clusters via SPT-3G CMB cluster lensing Open

Behzad Ansarinejad, S. Raghunathan, T. M. C. Abbott, P. A. R. Ade, M. Aguena , et al. · 2024

We measure the stacked lensing signal in the direction of galaxy clusters in the Dark Energy Survey Year 3 (DES Y3) redMaPPer sample, using cosmic microwave background (CMB) temperature data from SPT-3G, the third-generation CMB camera on …

Measurement of gravitational lensing of the cosmic microwave background using SPT-3G 2018 data Open

Z. Pan, F. Bianchini, W. L. K. Wu, P. A. R. Ade, Zeeshan Ahmed , et al. · 2023

We present a measurement of gravitational lensing over 1500 deg(2) of the Southern sky using SPT-3G temperature data at 95 GHz and 150 GHz taken in 2018. The lensing amplitude relative to a fiducial Planck 2018 Lambda cold dark matter (.CD…

Présent et futur des données du fond diffus cosmologique Open

E. Camphuis · 2023

Les observations des anisotropies primaires du fond diffus cosmologique (CMB en anglais) sont primordiales dans l’établissement de la cosmologie moderne et offrent une fenêtre unique sur la physique de l’Univers primitif. Cependant, des di…

A Measurement of Gravitational Lensing of the Cosmic Microwave Background Using SPT-3G 2018 Data Open

Z. Pan, F. Bianchini, W. L. K. Wu, P. A. R. Ade, Zeeshan Ahmed , et al. · 2023

We present a measurement of gravitational lensing over 1500 deg$^2$ of the Southern sky using SPT-3G temperature data at 95 and 150 GHz taken in 2018. The lensing amplitude relative to a fiducial Planck 2018 $Λ$CDM cosmology is found to be…

E. Camphuis YOU? Author Swipe