CONCERTO: instrument model of Fourier transform spectroscopy, white-noise components

Alessandro Fasano; Peter Ade; Manuel Aravena; Emilio Barria; Alexandre Beelen; Alain Benoît; Matthieu Béthermin; Julien Bounmy; Olivier Bourrion; Guillaume Bres; Martino Calvo; Andrea Catalano; Carlos De Breuck; François-Xavier Désert; Cédric Dubois; Carlos Durán; Thomas Fenouillet; Jose Garcia; Gregory Garde; Johannes Goupy; Christophe Hoarau; Wenkai Hu; Guilaine Lagache; Jean-Charles Lambert; Florence Levy-Bertrand; Andreas Lundgren; Juan-Francisco Macías-Pérez; Julien Marpaud; Alessandro Monfardini; Giampaolo Pisano; Nicolas Ponthieu; Leo Prieur; Samuel Roni; Sebastien Roudier; Damien Tourres; Carole Tucker; Mathilde Van Cuyck

doi:10.1117/12.3019890

16 August 2024 CONCERTO: instrument model of Fourier transform spectroscopy, white-noise components

Alessandro Fasano, Peter Ade, Manuel Aravena, Emilio Barria, Alexandre Beelen, Alain Benoît, Matthieu Béthermin, Julien Bounmy, Olivier Bourrion, Guillaume Bres, Martino Calvo, Andrea Catalano, Carlos De Breuck, François-Xavier Désert, Cédric Dubois, Carlos Durán, Thomas Fenouillet, Jose Garcia, Gregory Garde, Johannes Goupy, Christophe Hoarau, Wenkai Hu, Guilaine Lagache, Jean-Charles Lambert, Florence Levy-Bertrand, Andreas Lundgren, Juan-Francisco Macías-Pérez, Julien Marpaud, Alessandro Monfardini, Giampaolo Pisano, Nicolas Ponthieu, Leo Prieur, Samuel Roni, Sebastien Roudier, Damien Tourres, Carole Tucker, Mathilde Van Cuyck

Author Affiliations +

Proceedings Volume 13102, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII; 131020O (2024) https://doi.org/10.1117/12.3019890
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

Modern astrophysics relies on intricate instrument setups to meet the demands of sensitivity, sky coverage, and multi-channel observations. An example is the CONCERTO project, employing advanced technology like kinetic inductance detectors and a Martin-Puplett interferometer. This instrument, installed at the APEX telescope atop the Chajnantor plateau, began commissioning observations in April 2021. Following a successful commissioning phase that concluded in June 2021, CONCERTO was offered to the scientific community for observations, with a final observing run in December 2022. CONCERTO boasts an 18.5 arcmin field of view and a spectral resolution down to 1.45 GHz in the 130–310 GHz electromagnetic band. We developed a comprehensive instrument model of CONCERTO inspired by Fourier transform spectrometry principles to optimize performance and address systematic errors. This model integrates instrument noises, subsystem characteristics, and celestial signals, leveraging both physical data and simulations. Our methodology involves delineating simulation components, executing on-sky simulations, and comparing results with real observations. The resulting instrument model is pivotal, enabling a precise error correction and enhancing the reliability of astrophysical insights obtained from observational data. In this work, we focus on the description of three white-noise noise components included in the instrument model that characterize the white-noise level: the photon, the generation-recombination, and the amplifier noises.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Alessandro Fasano, Peter Ade, Manuel Aravena, Emilio Barria, Alexandre Beelen, Alain Benoît, Matthieu Béthermin, Julien Bounmy, Olivier Bourrion, Guillaume Bres, Martino Calvo, Andrea Catalano, Carlos De Breuck, François-Xavier Désert, Cédric Dubois, Carlos Durán, Thomas Fenouillet, Jose Garcia, Gregory Garde, Johannes Goupy, Christophe Hoarau, Wenkai Hu, Guilaine Lagache, Jean-Charles Lambert, Florence Levy-Bertrand, Andreas Lundgren, Juan-Francisco Macías-Pérez, Julien Marpaud, Alessandro Monfardini, Giampaolo Pisano, Nicolas Ponthieu, Leo Prieur, Samuel Roni, Sebastien Roudier, Damien Tourres, Carole Tucker, and Mathilde Van Cuyck "CONCERTO: instrument model of Fourier transform spectroscopy, white-noise components", Proc. SPIE 13102, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII, 131020O (16 August 2024); https://doi.org/10.1117/12.3019890

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available