activity
20122026
most citedThe Simons Observatory: Science goals and forecasts

1.5k citations · 5.5k across the 40 of their papers we have counts for

collaborators

40 papers

astro-ph.IM2026

Dish Assembly Precision for HIRAX

Jennifer Studer, Devin Crichton, Alexandre Refregier +16

The Hydrogen Intensity and Real-time Analysis eXperiment (HIRAX) is a radio interferometer array that is being deployed at the South African Radio Astronomy Observatory (SARAO) Squ…

astro-ph.CO2025

The Simons Observatory: forecasted constraints on primordial gravitational waves with the expanded array of Small Aperture Telescopes

The Simons Observatory Collaboration, I. Abril-Cabezas, S. Adachi +479

We present updated forecasts for the scientific performance of the degree-scale (0.5 deg FWHM at 93 GHz), deep-field survey to be conducted by the Simons Observatory (SO). By 2027,…

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★ 2 cited

Primary Beam Chromaticity in HIRAX: I. Characterization from Simulations and Power Spectrum Implications

Ajith Sampath, Devin Crichton, Kavilan Moodley +15

The Hydrogen Intensity and Real-time Analysis eXperiment (HIRAX) is an upcoming radio interferometric telescope designed to constrain dark energy through the 21cm intensity mapping…

astro-ph.IM2022

Antenna characterization for the HIRAX experiment

Emily R. Kuhn, Benjamin R. B. Saliwanchik, Kevin Bandura +24

The Hydrogen Intensity and Real-time Analysis eXperiment (HIRAX) aims to improve constraints on the dark energy equation of state through measurements of large-scale structure at h…

astro-ph.IM2021★ 3 cited

The Hydrogen Intensity and Real-time Analysis eXperiment: 256-Element Array Status and Overview

Devin Crichton, Moumita Aich, Adam Amara +97

The Hydrogen Intensity and Real-time Analysis eXperiment (HIRAX) is a radio interferometer array currently in development, with an initial 256-element array to be deployed at the S…

astro-ph.CO2021★ 14 cited

Extracting the Signal of Cosmic String Wakes from 21-cm Observations

David Maibach, Robert Brandenberger, Devin Crichton +1

A cosmic string wake produces a distinct non-Gaussian signal in 21-cm intensity maps at redshifts above that of reionization. While the string signal is (locally) larger in amplitu…

astro-ph.CO2021★ 22 cited

PACT. II. Pressure profiles of galaxy clusters using Planck and ACT

E. Pointecouteau, I. Santiago-Bautista, M. Douspis +9

The pressure of hot gas in groups and clusters of galaxies is a key physical quantity, which is directly linked to the total mass of the halo and several other thermodynamical prop…

astro-ph.IM2021★ 5 cited

Design and implementation of a noise temperature measurement system for the Hydrogen Intensity and Real-time Analysis eXperiment (HIRAX)

Emily R. Kuhn, Benjamin R. B. Saliwanchik, Maile Harris +24

This paper describes the design, implementation, and verification of a test-bed for determining the noise temperature of radio antennas operating between 400-800MHz. The requiremen…

astro-ph.CO2020★ 22 cited

MERGHERS Pilot: MeerKAT discovery of diffuse emission in nine massive Sunyaev-Zel'dovich-selected galaxy clusters from ACT

K. Knowles, D. S. Pillay, S. Amodeo +26

The MeerKAT Exploration of Relics, Giant Halos, and Extragalactic Radio Sources (MERGHERS) survey is a planned project to study a large statistical sample of galaxy clusters with t…

astro-ph.CO2020★ 302 cited

The Atacama Cosmology Telescope: A Catalog of > 4000 Sunyaev-Zel'dovich Galaxy Clusters

M. Hilton, C. Sifón, S. Naess +146

We present a catalog of 4195 optically confirmed Sunyaev-Zel'dovich (SZ) selected galaxy clusters detected with signal-to-noise > 4 in 13,211 deg of sky surveyed by the Atacama…

astro-ph.CO2020★ 271 cited

The Atacama Cosmology Telescope: A Measurement of the Cosmic Microwave Background Power Spectra at 98 and 150 GHz

Steve K. Choi, Matthew Hasselfield, Shuay-Pwu Patty Ho +136

We present the temperature and polarization angular power spectra of the CMB measured by the Atacama Cosmology Telescope (ACT) from 5400 deg of the 2013-2016 survey, which cove…

astro-ph.CO2020★ 629 cited

The Atacama Cosmology Telescope: DR4 Maps and Cosmological Parameters

Simone Aiola, Erminia Calabrese, Loïc Maurin +138

We present new arcminute-resolution maps of the Cosmic Microwave Background temperature and polarization anisotropy from the Atacama Cosmology Telescope, using data taken from 2013…

astro-ph.IM2019★ 79 cited

The Simons Observatory: Astro2020 Decadal Project Whitepaper

The Simons Observatory Collaboration, Maximilian H. Abitbol, Shunsuke Adachi +280

The Simons Observatory (SO) is a ground-based cosmic microwave background (CMB) experiment sited on Cerro Toco in the Atacama Desert in Chile that promises to provide breakthrough…

astro-ph.GA2019★ 24 cited

Quantifying the Thermal Sunyaev-Zel'dovich Effect and Excess Millimeter Emission in Quasar Environments

Kirsten R. Hall, Nadia L. Zakamska, Graeme Addison +23

In this paper we probe the hot, post-shock gas component of quasar-driven winds through the thermal Sunyaev-Zel'dovich (tSZ) effect. Combining datasets from the Atacama Cosmology T…

astro-ph.GA2019★ 30 cited

Atacama Cosmology Telescope: Dusty star-forming galaxies and active galactic nuclei in the equatorial survey

Megan B. Gralla, Tobias A. Marriage, Graeme Addison +30

We present a catalog of 510 radio-loud active galactic nuclei (AGN, primarily blazars) and 287 dusty star-forming galaxies (DSFGs) detected by the Atacama Cosmology Telescope at $>…

astro-ph.CO2019★ 36 cited

PACT I: Combining ACT and Planck data for optimal detection of tSZ signal

N. Aghanim, M. Douspis, G. Hurier +8

We present the optimal reconstruction of the thermal Sunyaev-Zel'dovich (tSZ) effect signal based on the combination of a heterogeneous dataset consisting of ACT and Planck data, w…

astro-ph.CO2018★ 1.5k cited

The Simons Observatory: Science goals and forecasts

The Simons Observatory Collaboration, Peter Ade, James Aguirre +247

The Simons Observatory (SO) is a new cosmic microwave background experiment being built on Cerro Toco in Chile, due to begin observations in the early 2020s. We describe the scient…

astro-ph.GA2018★ 14 cited

Downsizing of Star Formation Measured from the Clustered Infrared Background Correlated with Quasars

Kirsten R. Hall, Devin Crichton, Tobias Marriage +2

Powerful quasars can be seen out to large distances. As they reside in massive dark matter haloes, they provide a useful tracer of large scale structure. We stack Herschel-SPIRE im…

astro-ph.CO2017★ 171 cited

The Atacama Cosmology Telescope: The Two-Season ACTPol Sunyaev-Zel'dovich Effect Selected Cluster Catalog

Matt Hilton, Matthew Hasselfield, Cristóbal Sifón +41

We present a catalog of 182 galaxy clusters detected through the Sunyaev-Zel'dovich effect by the Atacama Cosmology Telescope in a contiguous 987.5 deg field. The clusters we…

astro-ph.CO2016★ 218 cited

The Atacama Cosmology Telescope: Two-Season ACTPol Spectra and Parameters

Thibaut Louis, Emily Grace, Matthew Hasselfield +80

We present the temperature and polarization angular power spectra measured by the Atacama Cosmology Telescope Polarimeter (ACTPol). We analyze night-time data collected during 2013…

astro-ph.CO2015★ 60 cited

The Atacama Cosmology Telescope: Dynamical masses for 44 SZ-selected galaxy clusters over 755 square degrees

Cristóbal Sifón, Nick Battaglia, Matthew Hasselfield +22

We present galaxy velocity dispersions and dynamical mass estimates for 44 galaxy clusters selected via the Sunyaev-Zel'dovich (SZ) effect by the Atacama Cosmology Telescope. Dynam…