Studies of systematic uncertainties for Simons Observatory: detector array effects

9 July 2018 Studies of systematic uncertainties for Simons Observatory: detector array effects

Kevin T. Crowley, Sara M. Simon, Max Silva-Feaver, Neil Goeckner-Wald, Aamir Ali, Jason Austermann, Michael L. Brown, Yuji Chinone, Ari Cukierman, Bradley Dober, Shannon M. Duff, Jo Dunkley, Josquin Errard, Giulio Fabbian, Patricio A. Gallardo, Shuay-Pwu Patty Ho, Johannes Hubmayr, Brian Keating, Akito Kusaka, Nialh McCallum, Jeff McMahon, Federico Nati, Michael D. Niemack, Giuseppe Puglisi, Mayuri Sathyanarayana Rao, Christian L. Reichardt, Maria Salatino, Praween Siritanasak, Suzanne Staggs, Aritoki Suzuki, Grant Teply, Daniel B. Thomas, Joel N. Ullom, Clara Vergès, Michael R. Vissers, Benjamin Westbrook, Edward J. Wollack, Zhilei Xu, Ningfeng Zhu

Author Affiliations +

Proceedings Volume 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX; 107083Z (2018) https://doi.org/10.1117/12.2313414
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

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 full SO experimental systems. SO will measure the Cosmic Microwave Background (CMB) temperature and polarization anisotropies over a wide range of angular scales in six bands with bandcenters spanning from 27 GHz to 270 GHz. We explore effects including intensity-to-polarization leakage due to coupling optics, bolometer nonlinearity, uncalibrated gain variations of bolometers, and readout crosstalk. We model the level of signal contamination, discuss proposed mitigation schemes, and present instrument requirements to inform the design of SO and future CMB projects.

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