BISOU: a balloon project to measure the CMB spectral distortions

2021/10/30 by B. Maffei, Maximilian H. Abitbol, Maffei, B. +51 · 4 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Adaptive optics and wavefront sensing #Superconducting and THz Device Technology

paper · doi:10.48550/arxiv.2111.00246

Abstract

The BISOU (Balloon Interferometer for Spectral Observations of the Universe) project aims to study the viability and prospects of a balloon-borne spectrometer, pathfinder of a future space mission dedicated to the measurements of the CMB spectral distortions. We present here a preliminary concept based on previous space mission proposals, together with some sensitivity calculation results for the observation goals, showing that a 5-sigma measurement of the y-distortions is achievable.

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