activity
20182025
most citedThe Simons Observatory: Science goals and forecasts

1.5k citations · 1.8k across the 13 of their papers we have counts for

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Showing astro-ph.COShow all

7 papers · 1 filter

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.CO2021★ 2 cited

Fast map-based simulations of systematics in CMB surveys including effects of the scanning strategy

Nialh McCallum, Daniel B. Thomas, Michael L. Brown

We present approaches to quickly simulate systematics affecting CMB observations, including the effects of the scanning strategy. Using summary properties of the scan we capture fe…

astro-ph.CO2021★ 2 cited

Spin-based removal of instrumental systematics in 21cm intensity mapping surveys

Nialh McCallum, Daniel B. Thomas, Philip Bull +1

Upcoming cosmological intensity mapping surveys will open new windows on the Universe, but they must first overcome a number of significant systematic effects, including polarizati…

astro-ph.CO2021★ 5 cited

Blind Map Level Systematics Cleaning: A Quadratic Estimator Approach

Joel Williams, Nialh McCallum, Aditya Rotti +3

We present the first detailed case study using quadratic estimators (QE) to diagnose and remove systematics present in observed Cosmic Microwave Background (CMB) maps. In this work…

astro-ph.CO2020★ 12 cited

Spin characterisation of systematics in CMB surveys -- a comprehensive formalism

Nialh McCallum, Daniel B. Thomas, Michael L. Brown +1

The CMB -mode polarisation signal -- both the primordial gravitational wave signature and the signal sourced by lensing -- is subject to many contaminants from systematic effect…

astro-ph.CO2019★ 6 cited

Controlling systematics in ground-based CMB surveys with partial boresight rotation

Daniel B. Thomas, Nialh McCallum, Michael L. Brown

Future CMB experiments will require exquisite control of systematics in order to constrain the -mode polarisation power spectrum. One class of systematics that requires careful…

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…