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CONCERTO: a breakthrough in wide field-of-view spectroscopy at millimeter wavelengths

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arxiv 2206.15146 v2 pith:JUO6Q7SO submitted 2022-06-30 astro-ph.IM

CONCERTO: a breakthrough in wide field-of-view spectroscopy at millimeter wavelengths

Alessandro Fasano , Alexandre Beelen , Alain Benoit , Andreas Lundgren , Peter Ade , Manuel Aravena , Emilio Barria , Matthieu B\'ethermin
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Julien Bounmy Olivier Bourrion Guillaume Bres Martino Calvo Andrea Catalano Fran\c{c}ois-Xavier D\'esert Carlos De Breuck Carlos Dur\'an Thomas Fenouillet Jose Garcia Gregory Garde Johannes Goupy Christopher Groppi Christophe Hoarau Wenkai Hu Guilaine Lagache Jean-Charles Lambert Jean-Paul Leggeri Florence Levy-Bertrand Juan-Francisco Macias-P\'erez Hamdi Mani Julien Marpaud Philip Mauskopf Alessandro Monfardini Giampaolo Pisano Nicolas Ponthieu Leo Prieur Samuel Roni Sebastien Roudier Damien Tourres Carol Tucker Mathilde Van Cuyck
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keywords concertofield-of-viewlinespectrometeraboveapexarcminatacama
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CarbON CII line in post-rEionization and ReionizaTiOn (CONCERTO) is a low-resolution spectrometer with an instantaneous field-of-view of 18.6 arcmin, operating in the 130-310 GHz transparent atmospheric window. It is installed on the 12-meter Atacama Pathfinder Experiment (APEX) telescope at 5100 m above sea level. The Fourier transform spectrometer (FTS) contains two focal planes hosting a total of 4304 kinetic inductance detectors. The FTS interferometric pattern is recorded on the fly while continuously scanning the sky. One of the goals of CONCERTO is to characterize the large-scale structure of the Universe by observing the integrated emission from unresolved galaxies. This methodology is an innovative technique and is called line intensity mapping. In this paper, we describe the CONCERTO instrument, the effect of the vibration of the FTS beamsplitter, and the status of the CONCERTO main survey.

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