BISOU: a balloon project to measure the CMB spectral distortions
astro-ph.IM
/ Authors
B. Maffei, M. H. Abitbol, N. Aghanim, J. Aumont, E. Battistelli, J. Chluba, X. Coulon, P. De Bernardis, M. Douspis, J. Grain
and 17 more authors
S. Gervasoni, J. C. Hill, A. Kogut, S. Masi, T. Matsumura, C. O Sullivan, L. Pagano, G. Pisano, M. Remazeilles, A. Ritacco, A. Rotti, V. Sauvage, G. Savini, S. L. Stever, A. Tartari, L. Thiele, N. Trappe
/ 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.