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arXiv · 2110.14984

CONCERTO at APEX: Installation and first phase of on-sky commissioning

A. Catalano·P. Ade·M. Aravena·E. Barria·A. Beelen·A. Benoit·M. Béthermin·J. Bounmy·O. Bourrion·G. Bres·C. De Breuck·M. Calvo·F. -X. Désert·C. A Duràn·G. Duvauchelle·L. Eraud·A. Fasano·T. Fenouillet·J. Garcia·G. Garde·J. Goupy·C. Groppi·C. Hoarau·W. Hu·G. Lagache·J. -C. Lambert·J. -P. Leggeri·F. Levy-Bertrand·J. Macìas-Pérez·H. Mani·J. Marpaud·M. Marton·P. Mauskopf·A. Monfardini·G. Pisano·N. Ponthieu·L. Prieur·G. Raffin·S. Roni·S. Roudier·D. Tourres·C. Tucker·L. Vivargent
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Abstract

CONCERTO (CarbON CII line in post-rEionisation and ReionisaTiOn) is a large field-of-view (FoV) spectro-imager that has been installed on the Cassegrain Cabin of Atacama Pathfinder EXperiment (APEX) telescope in April 2021. CONCERTO hosts 2 focal planes and a total number of 4000 Kinetic Inductance Detectors (KID), with an instantaneous FoV of 18.6 arcminutes in the range of 130-310 GHz. The spectral resolution can be easily tuned down to 1 GHz depending on the scientific target. The scientific program of CONCERTO has many objectives, with two main programs focused on mapping the fluctuations of the [CII] line intensity in the reionisation and post-reionisation epoch (4.5<z<8.5), and on studying galaxy clusters via the thermal and kinetic Sunyaev-Zel'dovich (SZ) effect. CONCERTO will also measure the dust and molecular gas contents of local and intermediate-redshift galaxies, it will study the Galactic star-forming clouds and finally it will observe the CO intensity fluctuations arising from 0.3<z<2 galaxies. The design of the instrument, installation at APEX and current status of the commissioning phase and science verification will be presented. Also we describe the deployment and first on-sky tests performed between April and June 2021.

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A. Catalano, P. Ade, M. Aravena, E. Barria, A. Beelen, A. Benoit, M. Béthermin, J. Bounmy, O. Bourrion, G. Bres, C. De Breuck, M. Calvo, F. -X. Désert, C. A Duràn, G. Duvauchelle, L. Eraud, A. Fasano, T. Fenouillet, J. Garcia, G. Garde, J. Goupy, C. Groppi, C. Hoarau, W. Hu, G. Lagache, J. -C. Lambert, J. -P. Leggeri, F. Levy-Bertrand, J. Macìas-Pérez, H. Mani, J. Marpaud, M. Marton, P. Mauskopf, A. Monfardini, G. Pisano, N. Ponthieu, L. Prieur, G. Raffin, S. Roni, S. Roudier, D. Tourres, C. Tucker, L. Vivargent. 2021-10-28. CONCERTO at APEX: Installation and first phase of on-sky commissioning. https://doi.org/10.1051/epjconf%2F202225700010

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