activity
20192026
most citedQUBIC I: Overview and ScienceProgram

45 citations · 474 across the 36 of their papers we have counts for

collaborators

39 papers

astro-ph.IM2026

The Simons Observatory: Frequency-resolved beam calibration for the SO SATs with POLOCALC

Nadia Dachlythra, Gabriele Coppi, Ludovico Bizzarri +30

We present a far-field beam calibration of the Simons Observatory (SO) Small Aperture Telescopes (SATs) using scanned single-frequency measurements of a drone-mounted source emitti…

astro-ph.IM2026

The Simons Observatory: Commissioning of the Mid-Frequency Small Aperture Telescopes

Kathleen Harrington, Remington Gerras, Nicholas Galitzki +88

The Simons Observatory (SO) is a cosmic microwave background (CMB) survey experiment observing from an altitude of 5,200 m in the Atacama Desert in Chile. The SO Small Aperture Tel…

astro-ph.IM2026

LiteBIRD Mission Overview after Mission Reformation

LiteBIRD Collaboration, K. Aizawa, H. Akamatsu +172

LiteBIRD is a JAXA-led space mission designed to produce all-sky microwave polarization maps. Its primary science goal is to test representative inflationary models by measuring th…

astro-ph.CO2026

Calibration of CMB Polarisation Using Cross-Experiment Correlations

Claire Rigouzzo, Eugene Lim, Susanna Azzoni +1

Parity-violating physics in the Universe can generate correlations between the Cosmic Microwave Background (CMB) - and -modes, but detecting such signals requires extremely a…

astro-ph.CO2025★ 1 cited

Robust CMB B-mode analysis with Needlet-ILC and simulation-based inference

Adriaan J. Duivenvoorden, Kristen Surrao, Adrian E. Bayer +4

We explore a novel analysis framework for parameter inference with large-scale CMB polarization data. Our method uses simulation-based inference combined with the needlet internal…

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★ 5 cited

The Simons Observatory: Assessing the Impact of Dust Complexity on the Recovery of Primordial -modes

Yiqi Liu, Susanna Azzoni, Susan E. Clark +14

We investigate how dust foreground complexity can affect measurements of the tensor-to-scalar ratio, , in the context of the Simons Observatory, using a cross-spectrum component…

astro-ph.CO2025

The Simons Observatory: Quantifying the impact of beam chromaticity on large-scale B-mode science

Nadia Dachlythra, Kevin Wolz, Susanna Azzoni +17

The Simons Observatory (SO) Small Aperture Telescopes (SATs) will observe the Cosmic Microwave Background (CMB) temperature and polarization at six frequency bands. Within these ba…

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.CO2025★ 3 cited

The Simons Observatory: Validation of reconstructed power spectra from simulated filtered maps for the Small Aperture Telescope survey

Carlos Hervías-Caimapo, Kevin Wolz, Adrien La Posta +33

We present a transfer function-based method to estimate angular power spectra from filtered maps for cosmic microwave background (CMB) surveys. This is especially relevant for expe…

astro-ph.CO2024

Requirements on the gain calibration for LiteBIRD polarisation data with blind component separation

F. Carralot, A. Carones, N. Krachmalnicoff +106

Future cosmic microwave background (CMB) experiments are primarily targeting a detection of the primordial -mode polarisation. The faintness of this signal requires exquisite co…

astro-ph.CO2024

The Simons Observatory: component separation pipelines for B-modes

Kevin Wolz, Susanna Azzoni, Carlos Hervías-Caimapo +5

The upcoming Simons Observatory (SO) Small Aperture Telescopes aim at observing the degree-scale anisotropies of the polarized CMB to constrain the primordial tensor-to-scalar rati…

astro-ph.IM2024

The European Low Frequency Survey on the Simons Array

Aniello Mennella, Kam Arnold, Susanna Azzoni +18

In this paper we present the European Low Frequency Survey (ELFS), a project that will enable foregrounds-free measurements of the primordial -mode polarization and a detection…

astro-ph.IM2024

The LiteBIRD mission to explore cosmic inflation

T. Ghigna, A. Adler, K. Aizawa +156

LiteBIRD, the next-generation cosmic microwave background (CMB) experiment, aims for a launch in Japan's fiscal year 2032, marking a major advancement in the exploration of primord…

astro-ph.CO2024★ 1 cited

The Simons Observatory: Combining delensing and foreground cleaning for improved constraints on inflation

Emilie Hertig, Kevin Wolz, Toshiya Namikawa +3

The Simons Observatory (SO), a next-generation ground-based CMB experiment in its final stages of construction, will target primordial -modes with unprecedented sensitivity to s…

astro-ph.CO2024

The Simons Observatory: Combining cross-spectral foreground cleaning with multitracer -mode delensing for improved constraints on inflation

Emilie Hertig, Kevin Wolz, Toshiya Namikawa +16

The Simons Observatory (SO), due to start full science operations in early 2025, aims to set tight constraints on inflationary physics by inferring the tensor-to-scalar ratio f…

astro-ph.CO2023★ 21 cited

LiteBIRD Science Goals and Forecasts: Improving Sensitivity to Inflationary Gravitational Waves with Multitracer Delensing

T. Namikawa, A. I. Lonappan, C. Baccigalupi +119

We estimate the efficiency of mitigating the lensing -mode polarization, the so-called delensing, for the experiment with multiple external data sets of lensing-mass…

astro-ph.CO2023★ 12 cited

LiteBIRD Science Goals and Forecasts: A full-sky measurement of gravitational lensing of the CMB

A. I. Lonappan, T. Namikawa, G. Piccirilli +119

We explore the capability of measuring lensing signals in full-sky polarization maps. With a arcmin beam width and an impressively low polarization noise of $2.16\,…

astro-ph.CO2023

The European Low Frequency Survey

Aniello Mennella, Kam Arnold, Susanna Azzoni +18

In this paper we present the European Low Frequency Survey (ELFS), a project that will enable foregrounds-free measurements of primordial -mode polarization to a level 10…

astro-ph.IM2023★ 5 cited

The Simons Observatory: Beam characterization for the Small Aperture Telescopes

Nadia Dachlythra, Adriaan J. Duivenvoorden, Jon E. Gudmundsson +27

We use time-domain simulations of Jupiter observations to test and develop a beam reconstruction pipeline for the Simons Observatory Small Aperture Telescopes. The method relies on…

astro-ph.CO2023★ 23 cited

Tensor-to-scalar ratio forecasts for extended LiteBIRD frequency configurations

U. Fuskeland, J. Aumont, R. Aurlien +114

LiteBIRD is a planned JAXA-led CMB B-mode satellite experiment aiming for launch in the late 2020s, with a primary goal of detecting the imprint of primordial inflationary gravitat…

astro-ph.CO2023★ 29 cited

The Simons Observatory: pipeline comparison and validation for large-scale B-modes

K. Wolz, S. Azzoni, C. Hervias-Caimapo +14

The upcoming Simons Observatory Small Aperture Telescopes aim at achieving a constraint on the primordial tensor-to-scalar ratio at the level of , observin…

astro-ph.CO2023★ 39 cited

Cosmology with 6 parameters in the Stage-IV era: efficient marginalisation over nuisance parameters

Boryana Hadzhiyska, Kevin Wolz, Susanna Azzoni +4

The analysis of photometric large-scale structure data is often complicated by the need to account for many observational and astrophysical systematics. The elaborate models needed…

astro-ph.CO2022★ 13 cited

A hybrid map- component separation method for primordial CMB -mode searches

Susanna Azzoni, David Alonso, Maximilian H. Abitbol +2

The observation of the polarised emission from the Cosmic Microwave Background (CMB) from future ground-based and satellite-borne experiments holds the promise of indirectly detect…