Concerto at apex on-sky performance in continuum

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dc.contributor.authorHu, Wenkai
dc.contributor.authorBeelen, Alexandre
dc.contributor.authorLagache, Guilaine
dc.date.accessioned2024-11-14T10:12:13Z
dc.date.available2024-11-14T10:12:13Z
dc.date.issued2024
dc.description.abstractCarbON CII line in post-rEionisation and ReionisaTiOn epoch (CONCERTO) instrument is a low-resolution mapping spectrometer based on lumped element kinetic inductance detector (LEKIDs) technology, operating at 130-310 GHz. It was installed on the 12-metre APEX telescope in Chile in April 2021 and was in operation until May 2023. CONCERTO’s main goals were the observation of [CII]-emission line fluctuations at high redshift and of the Sunyaev–Zel’dovich (SZ) signal from galaxy clusters. Aims. We present the data processing algorithms and the performance of CONCERTO in continuum by analysing the data from the commissioning and scientific observations.Methods. We developed a standard data processing pipeline to proceed from the raw data to continuum maps. Using a large dataset of calibrators (Uranus, Mars, and quasars) acquired in 2021 and 2022 at the APEX telescope across a wide range of atmospheric conditions, we measured the CONCERTO continuum performance and tested its stability against observing conditions. Further, using observations on the COSMOS field and observations targeting a distant sub-millimetre galaxy in the UDS field, we assessed the robustness of the CONCERTO performance on faint sources and compared our measurements with expectations.
dc.identifier.citationHu, W., Beelen, A., Lagache, G., Fasano, A., Lundgren, A., Ade, P., Aravena, M., Barria, E., Benoit, A., Bethermin, M. and Bounmy, J., 2024. CONCERTO at APEX On-sky performance in continuum. Astronomy & Astrophysics, 689, p.A20.
dc.identifier.urihttps://doi.org/10.1051/0004-6361/202449260
dc.identifier.urihttps://hdl.handle.net/10566/19681
dc.language.isoen
dc.publisherEDP Sciences
dc.subjectinstrumentation: photometers
dc.subjectdata analysis
dc.subjectobservational
dc.subjectsubmillimeter: general
dc.subjectcontinuum
dc.titleConcerto at apex on-sky performance in continuum
dc.typeArticle

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