1.5k citations · 1.8k across the 13 of their papers we have counts for
4 papers · 1 filter
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…
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…
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…