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 Durán; 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. Macías-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

doi:10.1051/epjconf/202225700010

Proceedings

Open Access

EPJ Web of Conferences 257, 00010 (2022)
https://doi.org/10.1051/epjconf/202225700010

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

A. Catalano⁴^,6^*, P. Ade¹, M. Aravena², E. Barria³^,4, A. Beelen⁵, A. Benoit³^,4, M. Béthermin⁵, J. Bounmy⁶^,4, O. Bourrion⁶^,4, G. Bres³^,4, C. De Breuck⁷, M. Calvo³^,4, F.-X. Désert⁸^,4, C.A Durán⁹, G. Duvauchelle⁵, L. Eraud⁶, A. Fasano³^,4, T. Fenouillet⁵, J. Garcia⁵, G. Garde³^,4, J. Goupy³^,4, C. Groppi¹⁰, C. Hoarau⁶^,4, W. Hu⁵, G. Lagache⁵, J.-C. Lambert⁵, J.-P. Leggeri³^,4, F. Levy-Bertrand³^,4, J. Macías-Pérez⁶^,4, H. Mani¹⁰, J. Marpaud⁶^,4, M. Marton⁶, P. Mauskopf¹⁰, A. Monfardini³^,4, G. Pisano¹, N. Ponthieu⁸^,4, L. Prieur⁵, G. Raffin⁶, S. Roni⁶, S. Roudier⁶, D. Tourres⁶^,4, C. Tucker¹ and L. Vivargent⁶

¹ Astronomy Instrumentation Group, University of Cardiff, The Parade, CF24 3AA, United Kindgom
² Núcleo de Astronomía, Facultad de Ingeniería y Ciencias, Universidad Diego Portales, Av. Ejército 441, Santiago, Chile
³ Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 38000 Grenoble, France
⁴ Groupement d’Interet Scientifique KID, 38000 Grenoble and 38400 Saint Martin d’Héres, France
⁵ Aix Marseille Université, CNRS, LAM (Laboratoire d’Astrophysique de Marseille), F-13388 Marseille, France
⁶ Univ. Grenoble Alpes, CNRS, LPSC/IN2P3, 38000 Grenoble, France
⁷ European Southern Observatory, Karl Schwarzschild Straße 2, 85748 Garching, Germany
⁸ Univ. Grenoble Alpes, CNRS, IPAG, 38400 Saint Martin d’Héres, France
⁹ European Southern Observatory, Alonso de Cordova 3107, Vitacura, Santiago, Chile
¹⁰ School of Earth and Space Exploration and Department of Physics, Arizona State University, Tempe, AZ 85287, USA

^* e-mail: catalano@lpsc.in2p3.fr

Published online: 17 January 2022

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 postreionisation 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.

© The Authors, published by EDP Sciences, 2022

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