activity
20092026
most citedThe Atacama Cosmology Telescope: DR4 Maps and Cosmological Parameters

629 citations · 8.1k across the 83 of their papers we have counts for

collaborators
Showing astro-ph.COShow all

78 papers · 1 filter

astro-ph.CO2026

The Atacama Cosmology Telescope: DR6 Constraints on Isotropic Time-Dependent Cosmic Birefringence from Axion-like Particles

Zachary B. Huber, Huajian Yang, Steve K. Choi +7

Axion-like particles (ALPs) with sufficiently low masses are dark matter candidates because they could account for much or all of the observed dark matter energy density and help e…

astro-ph.CO2026

The Atacama Cosmology Telescope: Constraints on the anisotropic screening and birefringence effects with DR6

Darby M. Kramer, Alexander van Engelen, Frank J. Qu +14

While we have learned much from recent surveys of the mm-wave sky, many secondary anisotropies of the CMB remain under-explored. We consider two of these here: the anisotropic scre…

astro-ph.CO2026

Characterising the epoch of reionisation using the cross-correlation of the kSZ effect and CMB lensing

Niall MacCrann, Christopher Cain, Aleksandra Kusiak +5

We investigate the cross-correlation of the kinematic Sunyaev-Zeldovich (kSZ) effect with lensing of the cosmic microwave background (CMB) as a probe of the epoch of reionisation.…

astro-ph.CO2026

The Atacama Cosmology Telescope: Probing new signatures of ultralight axions with gravitational lensing

Alex Laguë, Keir K. Rogers, Mathew S. Madhavacheril +14

Ultralight axions (ULAs) are well-motivated dark matter particle candidates that arise in many extensions of the Standard Model of particle physics. ULAs with mass $m_\mathrm{a} \l…

astro-ph.CO2025

The Atacama Cosmology Telescope: A demonstration of CMB lensing measurement from daytime data

Irene Abril-Cabezas, Frank J. Qu, Joshua Kim +30

We present a cosmic microwave background (CMB) lensing power spectrum analysis using daytime data (11am-11pm UTC) gathered by the Atacama Cosmology Telescope (ACT) over the period…

astro-ph.CO2025

The superclustering of hot gas: cosmological sensitivity in the Websky simulations

M. Lokken, J. R. Bond, R. Hložek +3

Combinations of galaxy surveys and cosmic microwave background secondaries, such as the thermal Sunyaev-Zel'dovich (tSZ) effect, are increasingly being used to jointly constrain co…

astro-ph.CO2025

Time-dependent deflection reconstruction: new technique to search for gravitational waves with the cosmic microwave background

Alvin Leluc, Joel Meyers, Alexander van Engelen

Gravitational waves (GWs) passing through the Earth cause a correlated pattern of time-dependent deflections of the apparent position of astronomical sources. We build upon standar…

astro-ph.CO2025★ 20 cited

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

Frank J. Qu, Fei Ge, W. L. Kimmy Wu +143

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 Te…

astro-ph.CO2025★ 2 cited

The Atacama Cosmology Telescope: DR6 Maps

Sigurd Naess, Yilun Guan, Adriaan J. Duivenvoorden +163

We present Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) maps of the Cosmic Microwave Background temperature and polarization anisotropy at arcminute resolution over three…

astro-ph.CO2025★ 14 cited

The Atacama Cosmology Telescope: DR6 Constraints on Extended Cosmological Models

Erminia Calabrese, J. Colin Hill, Hidde T. Jense +169

We use new cosmic microwave background (CMB) primary temperature and polarization anisotropy measurements from the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) to test fo…

astro-ph.CO2025★ 11 cited

The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and CDM Parameters

Thibaut Louis, Adrien La Posta, Zachary Atkins +165

We present power spectra of the cosmic microwave background (CMB) anisotropy in temperature and polarization, measured from the Data Release 6 maps made from Atacama Cosmology Tele…

astro-ph.CO2024★ 16 cited

Constraining gravity with a new precision estimator using Planck + SDSS BOSS

Lukas Wenzl, Rachel Bean, Shi-Fan Chen +7

The statistic is a discriminating probe of gravity developed to test the prediction of general relativity (GR) for the relation between gravitational potential and clustering…

astro-ph.CO2023★ 14 cited

Cosmology from Cross-Correlation of ACT-DR4 CMB Lensing and DES-Y3 Cosmic Shear

S. Shaikh, I. Harrison, A. van Engelen +105

Cross-correlation between weak lensing of the Cosmic Microwave Background (CMB) and weak lensing of galaxies offers a way to place robust constraints on cosmological and astrophysi…

astro-ph.CO2023★ 1 cited

Exploring the Non-Gaussianity of the Cosmic Infrared Background and Its Weak Gravitational Lensing

Jaemyoung Lee, J. Richard Bond, Pavel Motloch +2

Gravitational lensing deflects the paths of photons, altering the statistics of cosmic backgrounds and distorting their information content. We take the Cosmic Infrared Background…

astro-ph.CO2023★ 2 cited

Small Correlated Against Large Estimator (SCALE) for Cosmic Microwave Background Lensing

Victor C. Chan, Renée Hložek, Joel Meyers +1

Weak gravitational lensing of the cosmic microwave background (CMB) carries imprints of the physics operating at redshifts much lower than that of recombination and serves as an im…

astro-ph.CO2022★ 28 cited

Foreground Separation and Constraints on Primordial Gravitational Waves with the PICO Space Mission

Ragnhild Aurlien, Mathieu Remazeilles, Sebastian Belkner +13

PICO is a concept for a NASA probe-scale mission aiming to detect or constrain the tensor to scalar ratio , a parameter that quantifies the amplitude of inflationary gravity wav…

astro-ph.CO2022★ 9 cited

Boundless baryons: how diffuse gas contributes to anisotropic tSZ signal around simulated Three Hundred clusters

Martine Lokken, Weiguang Cui, J. Richard Bond +4

Upcoming advances in galaxy surveys and cosmic microwave background data will enable measurements of the anisotropic distribution of diffuse gas in filaments and superclusters at r…

astro-ph.CO2022★ 10 cited

Subtracting the kinetic Sunyaev-Zeldovich effect from the cosmic microwave background with surveys of large-scale structure

Simon Foreman, Selim C. Hotinli, Mathew S. Madhavacheril +2

The kinetic Sunyaev-Zeldovich (kSZ) effect will be an important source of cosmological and astrophysical information in upcoming surveys of the cosmic microwave background (CMB). H…

astro-ph.CO2021★ 59 cited

The Benefits of CMB Delensing

Selim C. Hotinli, Joel Meyers, Cynthia Trendafilova +2

The effects of gravitational lensing of the cosmic microwave background (CMB) have been measured at high significance with existing data and will be measured even more precisely in…

astro-ph.CO2021★ 42 cited

The Simons Observatory: Constraining inflationary gravitational waves with multi-tracer B-mode delensing

Toshiya Namikawa, Anton Baleato Lizancos, Naomi Robertson +32

We introduce and validate a delensing framework for the Simons Observatory (SO), which will be used to improve constraints on inflationary gravitational waves (IGWs) by reducing th…

astro-ph.CO2021★ 134 cited

The Atacama Cosmology Telescope: Constraints on Pre-Recombination Early Dark Energy

J. Colin Hill, Erminia Calabrese, Simone Aiola +40

The early dark energy (EDE) scenario aims to increase the value of the Hubble constant () inferred from cosmic microwave background (CMB) data over that found in CDM, via t…

astro-ph.CO2021★ 101 cited

CCAT-prime Collaboration: Science Goals and Forecasts with Prime-Cam on the Fred Young Submillimeter Telescope

Prime collaboration, M. Aravena, J. E. Austermann +84

We present a detailed overview of the science goals and predictions for the Prime-Cam direct detection camera/spectrometer being constructed by the CCAT-prime collaboration for ded…

astro-ph.CO2021★ 17 cited

Superclustering with the Atacama Cosmology Telescope and Dark Energy Survey: I. Evidence for thermal energy anisotropy using oriented stacking

M. Lokken, R. Hložek, A. van Engelen +104

The cosmic web contains filamentary structure on a wide range of scales. On the largest scales, superclustering aligns multiple galaxy clusters along inter-cluster bridges, visible…

astro-ph.CO2021★ 5 cited

A high-resolution view of the filament of gas between Abell 399 and Abell 401 from the Atacama Cosmology Telescope and MUSTANG-2

Adam D. Hincks, Federico Radiconi, Charles Romero +43

We report a significant detection of the hot intergalactic medium in the filamentary bridge connecting the galaxy clusters Abell 399 and Abell 401. This result is enabled by a low-…