Search: onr:"swepub:oai:research.chalmers.se:83217092-7d62-4e00-8e03-4ef60b47e8ef" >
CONCERTO: Simulatin...
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Gkogkou, A.Laboratoire d'Astrophysique de Marseille
(author)
CONCERTO: Simulating the CO, [CII], and [CI] line emission of galaxies in a 117 deg2 field and the impact of field-to-field variance
- Article/chapterEnglish2023
Publisher, publication year, extent ...
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2023-01-27
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EDP Sciences,2023
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:research.chalmers.se:83217092-7d62-4e00-8e03-4ef60b47e8ef
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https://research.chalmers.se/publication/534527URI
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https://doi.org/10.1051/0004-6361/202245151DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-216288URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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In the submillimeter regime, spectral line scans and line intensity mapping (LIM) are new promising probes for the cold gas content and star formation rate of galaxies across cosmic time. However, both of these two measurements suffer from field-to-field variance. We study the effect of field-to-field variance on the predicted CO and [CII] power spectra from future LIM experiments such as CONCERTO, as well as on the line luminosity functions (LFs) and the cosmic molecular gas mass density that are currently derived from spectral line scans. We combined a 117 deg2 dark matter lightcone from the Uchuu cosmological simulation with the simulated infrared dusty extragalactic sky (SIDES) approach. The clustering of the dusty galaxies in the SIDES-Uchuu product is validated by reproducing the cosmic infrared background anisotropies measured by Herschel and Planck. We find that in order to constrain the CO LF with an uncertainty below 20%, we need survey sizes of at least 0.1 deg2. Furthermore, accounting for the field-to-field variance using only the Poisson variance can underestimate the total variance by up to 80%. The lower the luminosity is and the larger the survey size is, the higher the level of underestimate. At z < 3, the impact of field-to-field variance on the cosmic molecular gas density can be as high as 40% for the 4.6 arcmin2 field, but drops below 10% for areas larger than 0.2 deg2. However, at z > 3 the variance decreases more slowly with survey size and for example drops below 10% for 1 deg2 fields. Finally, we find that the CO and [CII] LIM power spectra can vary by up to 50% in 1 deg2 fields. This limits the accuracy of the constraints provided by the first 1 deg2 surveys. In addition the level of the shot noise power is always dominated by the sources that are just below the detection thresholds, which limits its potential for deriving number densities of faint [CII] emitters. We provide an analytical formula to estimate the field-to-field variance of current or future LIM experiments given their observed frequency and survey size. The underlying code to derive the field-to-field variance and the full SIDES-Uchuu products (catalogs, cubes, and maps) are publicly available.
Subject headings and genre
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Béthermin, MatthieuLaboratoire d'Astrophysique de Marseille
(author)
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Lagache, G.Laboratoire d'Astrophysique de Marseille
(author)
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Van Cuyck, M.Laboratoire d'Astrophysique de Marseille
(author)
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Jullo, E.Laboratoire d'Astrophysique de Marseille
(author)
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Aravena, ManuelUniversidad Diego Portales,Diego Portales University
(author)
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Beelen, A.Laboratoire d'Astrophysique de Marseille
(author)
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Benoit, A.Université Grenoble Alpes,Grenoble Alpes University
(author)
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Bounmy, J.Université Grenoble Alpes,Grenoble Alpes University
(author)
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Calvo, M.Université Grenoble Alpes,Grenoble Alpes University
(author)
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Catalano, A.Université Grenoble Alpes,Grenoble Alpes University
(author)
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Cora, S.Universidad Nacional de La Plata (UNLP),National University of La Plata (UNLP)
(author)
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Croton, D.Swinburne University of Technology
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De La Torre, S.Laboratoire d'Astrophysique de Marseille
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Fasano, A.Laboratoire d'Astrophysique de Marseille
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Ferrara, A.Scuola Normale Superiore di Pisa
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Goupy, J.Université Grenoble Alpes,Grenoble Alpes University
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Hoarau, C.Université Grenoble Alpes,Grenoble Alpes University
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Hu, W.Laboratoire d'Astrophysique de Marseille
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Ishiyama, T.Chiba University
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Knudsen, Kirsten,1976Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)kraiberg
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Lambert, J. C.Laboratoire d'Astrophysique de Marseille
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Maciás-Pérez, J. F.Université Grenoble Alpes,Grenoble Alpes University
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Marpaud, J.Université Grenoble Alpes,Grenoble Alpes University
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Mellema, GarreltStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)gmell
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Monfardini, A.Université Grenoble Alpes,Grenoble Alpes University
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Pallottini, AndreaScuola Normale Superiore di Pisa
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Ponthieu, N.Université Grenoble Alpes,Grenoble Alpes University
(author)
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Prada, F.Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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Roehlly, Y.Laboratoire d'Astrophysique de Marseille
(author)
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Vallini, L.Scuola Normale Superiore di Pisa
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Walter, F.Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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Laboratoire d'Astrophysique de MarseilleUniversidad Diego Portales
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In:Astronomy and Astrophysics: EDP Sciences6700004-63611432-0746
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- By the author/editor
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Gkogkou, A.
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Béthermin, Matth ...
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Lagache, G.
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Van Cuyck, M.
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Jullo, E.
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Aravena, Manuel
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show more...
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Beelen, A.
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Benoit, A.
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Bounmy, J.
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Calvo, M.
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Catalano, A.
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Cora, S.
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Croton, D.
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De La Torre, S.
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Fasano, A.
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Ferrara, A.
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Goupy, J.
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Hoarau, C.
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Hu, W.
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Ishiyama, T.
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Knudsen, Kirsten ...
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Lambert, J. C.
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Maciás-Pérez, J. ...
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Marpaud, J.
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Mellema, Garrelt
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Monfardini, A.
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Pallottini, Andr ...
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Ponthieu, N.
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Prada, F.
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Roehlly, Y.
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Vallini, L.
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Walter, F.
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