Development of Calibration Strategies for the Simons Observatory

Abstract

The Simons Observatory (SO) is a set of cosmic microwave background instruments that will be deployed in the Atacama Desert in Chile. The key science goals include setting new constraints on cosmic inflation, measuring large scale structure with gravitational lensing, and constraining neutrino masses. Meeting these science goals with SO requires high sensitivity and improved calibration techniques. In this paper, we highlight a few of the most important instrument calibrations, including spectral response, gain stability, and polarization angle calibrations. We present their requirements for SO and experimental techniques that can be employed to reach those requirements.

13 pages, 4 figures, SPIE Astronomical Telescopes and Instrumentation 2018

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Cited by in corpus (4)

• The Simons Observatory: A fully remote controlled calibration system with a sparse wire grid for cosmic microwave background telescopes
• Studies of Systematic Uncertainties for Simons Observatory: Optical Effects and Sensitivity Considerations
• Simulating instrumental systematics of Cosmic Microwave Background experiments with s4cmb
• The Simons Observatory: impact of bandpass, polarization angle and calibration uncertainties on small-scale power spectrum analysis