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Related papers: Constraints on $\Lambda$CDM Extensions from the SP…

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We analyze the latest cosmic microwave background (CMB) constraints on the scalar spectral index $n_s$ and tensor-to-scalar ratio $r$ from Planck 2018, BICEP/Keck 2018, the Atacama Cosmology Telescope Data Release 6 (ACT DR6), and the South…

High Energy Physics - Phenomenology · Physics 2025-10-22 John Ellis , Marcos A. G. Garcia , Keith A. Olive , Sarunas Verner

We present a measurement of the angular power spectrum of the cosmic microwave background (CMB) using data from the South Pole Telescope (SPT). The data consist of 790 square degrees of sky observed at 150 GHz during 2008 and 2009. Here we…

We present updated constraints on the variation of the fine structure constant, $\alpha_{\rm EM}$, and effective electron rest mass, $m_{\rm e}$, during the cosmological recombination era. These two fundamental constants directly affect the…

Cosmology and Nongalactic Astrophysics · Physics 2020-05-25 Luke Hart , Jens Chluba

The early dark energy (EDE) extension to $\Lambda$CDM has been proposed as a candidate scenario to resolve the "Hubble tension". We present new constraints on the EDE model by incorporating new data from the Dark Energy Spectroscopic…

Cosmology and Nongalactic Astrophysics · Physics 2024-04-26 Frank J. Qu , Kristen M. Surrao , Boris Bolliet , J. Colin Hill , Blake D. Sherwin , Hidde T. Jense

The Planck cosmic microwave background (CMB) temperature data are best fit with a LCDM model that is in mild tension with constraints from other cosmological probes. The South Pole Telescope (SPT) 2540 $\text{deg}^2$ SPT-SZ survey offers…

The increasing precision of Cosmic Microwave Background (CMB) observations has unveiled significant tensions between different datasets, notably between Planck and the Atacama Cosmology Telescope (ACT), as well as with the late-Universe…

Cosmology and Nongalactic Astrophysics · Physics 2025-04-02 Matteo Forconi , Eleonora DI Valentino

We reconstruct the Cosmic Microwave Background (CMB) lensing potential on the latest Planck CMB PR4 (NPIPE) maps, which include slightly more data than the 2018 PR3 release, and implement quadratic estimators using more optimal filtering.…

Cosmology and Nongalactic Astrophysics · Physics 2022-09-21 Julien Carron , Mark Mirmelstein , Antony Lewis

We present updated constraints on cosmological parameters in a 12-parameter model, extending the standard six-parameter $\Lambda$CDM by including dynamical dark energy (DE: $w_0$, $w_a$), the sum of neutrino masses ($\sum m_{\nu}$), the…

Cosmology and Nongalactic Astrophysics · Physics 2024-11-19 Shouvik Roy Choudhury , Teppei Okumura

We present updated observational constraints on the spatially flat $\phi$CDM model, where dark energy is described by a minimally coupled scalar field $\phi$ with an inverse power-law potential $V=V_0 \phi^{-\alpha}$. Using Planck 2018 CMB…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-01 Chan-Gyung Park , Bharat Ratra

This paper aims to perform a phenomenological parametrisation of the standard cosmological model, $\Lambda$CDM, to weigh the different physical processes that define the pattern of the angular power spectra of the Cosmic Microwave…

Cosmology and Nongalactic Astrophysics · Physics 2022-11-22 M. Ruiz-Granda , P. Vielva

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…

Thermal Sunyaev-Zel'dovich effect is one of the recent probes of cosmology and large scale structures. We update constraints on cosmological parameters from galaxy clusters observed by the Planck satellite in a first attempt to combine…

Cosmology and Nongalactic Astrophysics · Physics 2018-06-06 Laura Salvati , Marian Douspis , Nabila Aghanim

In this followup analysis, we update previous constraints on the Transitional Planck Mass (TPM) modified gravity model using the latest version of EFTCAMB and provide new constraints using SPT and Planck anisotropy data along with Planck…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-25 Joshua A Kable , Giampaolo Benevento , Graeme E Addison , Charles L Bennett

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…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-19 Frank J. Qu , Fei Ge , W. L. Kimmy Wu , Irene Abril-Cabezas , Mathew S. Madhavacheril , Marius Millea , Zeeshan Ahmed , Ethan Anderes , Adam J. Anderson , Behzad Ansarinejad , Melanie Archipley , Zachary Atkins , Lennart Balkenhol , Nicholas Battaglia , Karim Benabed , Amy N. Bender , Bradford A. Benson , Federico Bianchini , Lindsey. E. Bleem , Boris Bolliet , J Richard Bond , François. R. Bouchet , Lincoln Bryant , Erminia Calabrese , Etienne Camphuis , John E. Carlstrom , Julien Carron , Anthony Challinor , Clarence L. Chang , Prakrut Chaubal , Geoff Chen , Paul M. Chichura , Steve K. Choi , Aman Chokshi , Ti-Lin Chou , Anna Coerver , William Coulton , Thomas M. Crawford , Cail Daley , Omar Darwish , Tijmen de Haan , Mark J. Devlin , Karia R. Dibert , Matthew A. Dobbs , Michael Doohan , Aristide Doussot , Adriaan J. Duivenvoorden , Jo Dunkley , Rolando Dunner , Daniel Dutcher , Carmen Embil Villagra , Wendy Everett , Gerrit S. Farren , Chang Feng , Simone Ferraro , Kyle R. Ferguson , Kyra Fichman , Emily Finson , Allen Foster , Patricio A. Gallardo , Silvia Galli , Anne E. Gambrel , Rob W. Gardner , Neil Goeckner-Wald , Riccardo Gualtieri , Federica Guidi , Sam Guns , Mark Halpern , Nils W. Halverson , J. Colin Hill , Matt Hilton , Eric Hivon , Gilbert P. Holder , William L. Holzapfel , John C. Hood , Doug Howe , Alec Hryciuk , Nicholas Huang , Johannes Hubmayr , Florian Kéruzoré , Ali R. Khalife , Joshua Kim , Lloyd Knox , Milo Korman , Kayla Kornoelje , Arthur Kosowsky , Chao-Lin Kuo , Hidde T. Jense , Adrien La Posta , Kevin Levy , Amy E. Lowitz , Thibaut Louis , Chunyu Lu , Gabriel P. Lynch , Niall MacCrann , Abhishek Maniyar , Emily S. Martsen , Jeff McMahon , Felipe Menanteau , Joshua Montgomery , Yuka Nakato , Kavilan Moodley , Toshiya Namikawa , Tyler Natoli , Michael D. Niemack , Gavin I. Noble , Yuuki Omori , Aaron Ouellette , Lyman A. Page , Zhaodi Pan , Pascal Paschos , Kedar A. Phadke , Alexander W. Pollak , Karthik Prabhu , Wei Quan , Srinivasan Raghunathan , Mahsa Rahimi , Alexandra Rahlin , Christian L. Reichardt , Dave Riebel , Maclean Rouble , John E. Ruhl , Emmanuel Schaan , Eduardo Schiappucci , Neelima Sehgal , Carlos E. Sierra , Aidan Simpson , Blake D. Sherwin , Cristóbal Sifón , David N. Spergel , Suzanne T. Staggs , Joshua A. Sobrin , Antony A. Stark , Judith Stephen , Chris Tandoi , Ben Thorne , Cynthia Trendafilova , Caterina Umilta , Alexander Van Engelen , Joaquin D. Vieira , Aline Vitrier , Yujie Wan , Nathan Whitehorn , Edward J. Wollack , Matthew R. Young , Jessica A. Zebrowski

We study Planck 2015 cosmic microwave background (CMB) anisotropy data using the energy density inhomogeneity power spectrum generated by quantum fluctuations during an early epoch of inflation in the non-flat $\Lambda$CDM model. Unlike…

Cosmology and Nongalactic Astrophysics · Physics 2018-09-19 Junpei Ooba , Bharat Ratra , Naoshi Sugiyama

The Planck experiment has measured the Cosmic Microwave Background (CMB) angular spectrum with unprecedented accuracy, and these results are likely to remain the state-of-the art for a decade or more. Since these measurements are going to…

Cosmology and Nongalactic Astrophysics · Physics 2018-10-17 Julia Stadler , Céline Bœhm

We perform a multiprobe analysis combining cosmic microwave background (CMB) data from Planck and the Atacama Cosmology Telescope (ACT), ACT CMB lensing, and large-scale structure (LSS) measurements from the Dark Energy Spectroscopic…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-08 Alexander Reeves , Simone Ferraro , Andrina Nicola , Alexandre Refregier

We report a measurement of the E-mode polarization power spectrum of the cosmic microwave background (CMB) using 150 GHz data taken from July 2014 to December 2016 with the POLARBEAR experiment. We reach an effective polarization map noise…

The cosmic microwave background (CMB) temperature, $T$, surely the most precisely measured cosmological parameter, has been inferred from {\it local} measurements of the blackbody spectrum to an exquisite precision of 1 part in $\sim 4700$.…

Cosmology and Nongalactic Astrophysics · Physics 2020-11-04 Meir Shimon , Yoel Rephaeli

We present cosmological constraints for the flat $\Lambda$CDM model, including the sum of neutrino masses, by performing a multi-probe analysis of a total of 13 tomographic auto- and cross-angular power spectra. This is achieved by…

Cosmology and Nongalactic Astrophysics · Physics 2021-10-11 Raphael Sgier , Christiane Lorenz , Alexandre Refregier , Janis Fluri , Dominik Zürcher , Federica Tarsitano