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arXiv · 2404.05352

[CII] luminosity models and large-scale image cubes based on COSMOS 2020 and ALPINE-ALMA [CII] data back to the epoch of reionisation

J. Clarke·C. Karoumpis·D. Riechers·B. Magnelli·Y. Okada·A. Dev·T. Nikola·F. Bertoldi
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Abstract

We have implemented a novel method to create simulated [CII] emission line intensity mapping (LIM) data cubes using COSMOS 2020 galaxy catalogue data. It allows us to provide solid lower limits for previous simulation-based model predictions and the expected signal strength of upcoming surveys. We applied [CII]158$\mu$m luminosity models to COSMOS 2020 to create LIM cubes covering a 1.2$\times$1.2 deg$^2$ sky area. These models were derived using galaxy bulk property data from the ALPINE-ALMA survey over the redshift range $4.4 1 when using FYST parameters. However, our high-redshift results remain inconclusive because of the poor completeness of COSMOS 2020 at $z$>6.3. These predictions will be improved on the basis of future JWST data.

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J. Clarke, C. Karoumpis, D. Riechers, B. Magnelli, Y. Okada, A. Dev, T. Nikola, F. Bertoldi. 2024-04-08. [CII] luminosity models and large-scale image cubes based on COSMOS 2020 and ALPINE-ALMA [CII] data back to the epoch of reionisation. https://doi.org/10.1051/0004-6361/202450300

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