9 papers
Consequences of constant elevation scans for instrumental systematics in Cosmic Microwave Background Experiments
Daniel B. Thomas, Nialh McCallum, Michael L. Brown
Instrumental systematics need to be controlled to high precision for upcoming Cosmic Microwave Background (CMB) experiments. The level of contamination caused by these systematics…
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…
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…
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…
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…
Studies of Systematic Uncertainties for Simons Observatory: Detector Array Effects
Kevin T. Crowley, Sara M. Simon, Max Silva-Feaver +36
In this proceeding, we present studies of instrumental systematic effects for the Simons Obsevatory (SO) that are associated with the detector system and its interaction with the f…