activity
20042025
most citedThe Simons Observatory: Science goals and forecasts

1.5k citations · 4.9k across the 48 of their papers we have counts for

collaborators

48 papers

astro-ph.IM2025★ 1 cited

The Simons Observatory: Science Goals and Forecasts for the Enhanced Large Aperture Telescope

The Simons Observatory Collaboration, M. Abitbol, I. Abril-Cabezas +419

We describe updated scientific goals for the wide-field, millimeter-wave survey that will be produced by the Simons Observatory (SO). Significant upgrades to the 6-meter SO Large A…

astro-ph.IM2024

Calibration of detector time constant with a thermal source for the POLARBEAR-2A CMB polarization experiment

S. Takatori, M. Hasegawa, M. Hazumi +22

The Simons Array (SA) project is a ground-based Cosmic Microwave Background (CMB) polarization experiment. The SA observes the sky using three telescopes, and POLARBEAR-2A (PB-2A)…

astro-ph.CO2023★ 19 cited

Constraints on axion-like polarization oscillations in the cosmic microwave background with POLARBEAR

The POLARBEAR Collaboration, Shunsuke Adachi, Tylor Adkins +29

Very light pseudoscalar fields, often referred to as axions, are compelling dark matter candidates and can potentially be detected through their coupling to the electromagnetic fie…

astro-ph.CO2023★ 2 cited

Characterization of a half-wave plate for cosmic microwave background circular polarization measurement with POLARBEAR

T. Fujino, S. Takakura, Y. Chinone +7

A half-wave plate (HWP) is often used as a modulator to suppress systematic error in the measurements of cosmic microwave background (CMB) polarization. A HWP can also be used to m…

astro-ph.IM2022★ 37 cited

The POLARBEAR-2 and Simons Array Focal Plane Fabrication Status

B. Westbrook, P. A. R. Ade, M. Aguilar +90

We present on the status of POLARBEAR-2 A (PB2-A) focal plane fabrication. The PB2-A is the first of three telescopes in the Simon Array (SA), which is an array of three cosmic mic…

astro-ph.IM2022★ 4 cited

Development of epoxy-based millimeter absorber with expanded polystyrenes and carbon black

Yuki Inoue, Masaya Hasegawa, Masashi Hazumi +2

We recently developed and characterized an absorber for millimeter wavelengths. To absorb the millimeter wave efficiently, we need to develop the low reflection and high absorption…

astro-ph.IM2022★ 5 cited

Broadband multi-layer anti-reflection coatings with mullite and duroid for half-wave plates and alumina filters for CMB polarimetry

Kana Sakaguri, Masaya Hasegawa, Yuki Sakurai +2

A broadband two-layer anti-reflection (AR) coating was developed for use on a sapphire half-wave plate (HWP) and an alumina infrared (IR) filter for cosmic microwave background (CM…

astro-ph.IM2022

High-precision temperature monitoring system for room-temperature equipment in astrophysical observations

Daiki Tanabe, Masaya Hasegawa, Masashi Hazumi +5

We present a precise thermometry system to monitor room-temperature components of a telescope for radio-astronomy such as cosmic microwave background (CMB) observation. The system…

astro-ph.CO2022★ 12 cited

Snowmass 2021 CMB-S4 White Paper

Kevork Abazajian, Arwa Abdulghafour, Graeme E. Addison +353

This Snowmass 2021 White Paper describes the Cosmic Microwave Background Stage 4 project CMB-S4, which is designed to cross critical thresholds in our understanding of the origin a…

astro-ph.CO2022★ 28 cited

Improved upper limit on degree-scale CMB B-mode polarization power from the 670 square-degree POLARBEAR survey

The POLARBEAR Collaboration, S. Adachi, T. Adkins +51

We report an improved measurement of the degree-scale cosmic microwave background -mode angular-power spectrum over 670 square-degree sky area at 150 GHz with POLARBEAR. In the…

astro-ph.IM2021★ 7 cited

Overview of the Medium and High Frequency Telescopes of the LiteBIRD satellite mission

L. Montier, B. Mot, P. de Bernardis +232

LiteBIRD is a JAXA-led Strategic Large-Class mission designed to search for the existence of the primordial gravitational waves produced during the inflationary phase of the Univer…

astro-ph.IM2021★ 143 cited

LiteBIRD: JAXA's new strategic L-class mission for all-sky surveys of cosmic microwave background polarization

M. Hazumi, P. A. R. Ade, A. Adler +233

LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and…

astro-ph.IM2021★ 12 cited

Simons Observatory Small Aperture Telescope overview

Kenji Kiuchi, Shunsuke Adachi, Aamir M. Ali +51

The Simons Observatory (SO) is a cosmic microwave background (CMB) experiment from the Atacama Desert in Chile comprising three small-aperture telescopes (SATs) and one large-apert…

astro-ph.IM2021★ 12 cited

Concept Design of Low Frequency Telescope for CMB B-mode Polarization satellite LiteBIRD

Y. Sekimoto, P. A. R. Ade, A. Adler +232

LiteBIRD has been selected as JAXA's strategic large mission in the 2020s, to observe the cosmic microwave background (CMB) -mode polarization over the full sky at large angular…

astro-ph.CO2020★ 271 cited

CMB-S4: Forecasting Constraints on Primordial Gravitational Waves

S4 Collaboration, Kevork Abazajian, Graeme E. Addison +233

CMB-S4---the next-generation ground-based cosmic microwave background (CMB) experiment---is set to significantly advance the sensitivity of CMB measurements and enhance our underst…

astro-ph.CO2020★ 37 cited

A measurement of the CMB E-mode angular power spectrum at subdegree scales from 670 square degrees of POLARBEAR data

S. Adachi, M. A. O. Aguilar Faúndez, K. Arnold +53

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 POLARBE…

astro-ph.IM2020★ 78 cited

Updated design of the CMB polarization experiment satellite LiteBIRD

H. Sugai, P. A. R. Ade, Y. Akiba +216

Recent developments of transition-edge sensors (TESs), based on extensive experience in ground-based experiments, have been making the sensor techniques mature enough for their app…

astro-ph.CO2019★ 30 cited

Measurement of the Cosmic Microwave Background Polarization Lensing Power Spectrum from Two Years of POLARBEAR Data

Mario Aguilar Faúndez, Kam Arnold, Carlo Baccigalupi +48

We present a measurement of the gravitational lensing deflection power spectrum reconstructed with two seasons cosmic microwave background polarization data from the POLARBEAR expe…

astro-ph.CO2019★ 73 cited

A Measurement of the Degree Scale CMB B-mode Angular Power Spectrum with POLARBEAR

S. Adachi, M. A. O. Aguilar Faúndez, K. Arnold +69

We present a measurement of the -mode polarization power spectrum of the cosmic microwave background (CMB) using taken from July 2014 to December 2016 with the POLARBEAR experim…

astro-ph.CO2019★ 42 cited

Internal delensing of Cosmic Microwave Background polarization B-modes with the POLARBEAR experiment

S. Adachi, M. A. O. Aguilar Faúndez, Y. Akiba +51

Using only cosmic microwave background polarization data from the POLARBEAR experiment, we measure -mode polarization delensing on subdegree scales at more than significanc…

astro-ph.IM2019★ 2 cited

CMB-S4 Decadal Survey APC White Paper

Kevork Abazajian, Graeme Addison, Peter Adshead +222

We provide an overview of the science case, instrument configuration and project plan for the next-generation ground-based cosmic microwave background experiment CMB-S4, for consid…

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.IM2019★ 443 cited

CMB-S4 Science Case, Reference Design, and Project Plan

Kevork Abazajian, Graeme Addison, Peter Adshead +222

We present the science case, reference design, and project plan for the Stage-4 ground-based cosmic microwave background experiment CMB-S4.

astro-ph.IM2019★ 12 cited

The POLARBEAR Fourier Transform Spectrometer Calibrator and Spectroscopic Characterization of the POLARBEAR Instrument

Frederick Matsuda, Lindsay Lowry, Aritoki Suzuki +25

We describe the Fourier Transform Spectrometer (FTS) used for in-field testing of the POLARBEAR receiver, an experiment located in the Atacama Desert of Chile which measures the co…