Alma spectroscopic survey in the hubble ultra deep field: co luminosity functions and the evolution of the cosmic density of molecular gas

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dc.contributor.authorDecarli, Roberto
dc.contributor.authorWalter, Fabian
dc.contributor.authorAravena, Manuel
dc.contributor.authorCarilli, Chris
dc.contributor.authorBouwens, Rychard
dc.contributor.authorDa Cunha, Elisabete
dc.contributor.authorDaddi, Emanuele
dc.contributor.authorIvison, R.J.
dc.contributor.authorPopping, Gergö
dc.contributor.authorRiechers, Dominik
dc.contributor.authorSmail, Ian R.
dc.contributor.authorSwinbank, Mark
dc.contributor.authorWeiss, Axel
dc.contributor.authorAnguita, Timo
dc.contributor.authorAssef, Roberto J.
dc.contributor.authorBauer, Franz E.
dc.contributor.authorBell, Eric F.
dc.contributor.authorBertoldi, Frank
dc.contributor.authorChapman, Scott
dc.contributor.authorColina, Luis
dc.contributor.authorCortes, Paulo C.
dc.contributor.authorCox, Pierre
dc.contributor.authorDickinson, Mark
dc.contributor.authorElbaz, David
dc.contributor.authorGónzalez-López, Jorge
dc.contributor.authorIbar, Edo
dc.contributor.authorInfante, Leopoldo
dc.contributor.authorHodge, Jacqueline
dc.contributor.authorKarim, Alex
dc.contributor.authorFevre, Olivier Le
dc.contributor.authorMagnelli, Benjamin
dc.contributor.authorNeri, Roberto
dc.contributor.authorOesch, Pascal
dc.contributor.authorOta, Kazuaki
dc.contributor.authorRix, Hans-Walter
dc.contributor.authorSargent, Mark
dc.contributor.authorSheth, Kartik
dc.contributor.authorVan Der Wel, Arjen
dc.contributor.authorVan Der Werf, Paul
dc.contributor.authorWagg, Jeff
dc.date.accessioned2023-08-09T22:44:46Z
dc.date.available2023-08-09T22:44:46Z
dc.date.issued2016-12
dc.descriptionIndexación Scopus.es
dc.description.abstractIn this paper we use ASPECS, the ALMA Spectroscopic Survey in the Hubble Ultra Deep Field in band 3 and band 6, to place blind constraints on the CO luminosity function and the evolution of the cosmic molecular gas density as a function of redshift up to z ∼ 4.5. This study is based on galaxies that have been selected solely through their CO emission and not through any other property. In all of the redshift bins the ASPECS measurements reach the predicted “knee” of the CO luminosity function (around 5 × 109 K km s−1 pc2 ). We find clear evidence of an evolution in the CO luminosity function with respect to z ∼ 0, with more CO-luminous galaxies present at z ∼ 2. The observed galaxies at z ∼ 2 also appear more gas-rich than predicted by recent semi analytical models. The comoving cosmic molecular gas density within galaxies as a function of redshift shows a drop by a factor of 3–10 from z ∼ 2 to z ∼ 0 (with significant error bars), and possibly a decline at z > 3. This trend is similar to the observed evolution of the cosmic star formation rate density. The latter therefore appears to be at least partly driven by the increased availability of molecular gas reservoirs at the peak of cosmic star formation (z ∼ 2).es
dc.description.urihttps://iopscience-iop-org.recursosbiblioteca.unab.cl/article/10.3847/1538-4357/833/1/69
dc.identifier.citationAstrophysical Journal. Open Access. Volume 833, Issue 1. 10 December 2016. Article number 69es
dc.identifier.doi10.3847/1538-4357/833/1/69
dc.identifier.issn0004-637X
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/52410
dc.language.isoenes
dc.publisherInstitute of Physics Publishinges
dc.rights.licenseAtribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectGalaxies: Evolutiones
dc.subjectGalaxies: Formationes
dc.subjectGalaxies: High-Redshiftes
dc.subjectGalaxies: ISMes
dc.subjectSurveyses
dc.titleAlma spectroscopic survey in the hubble ultra deep field: co luminosity functions and the evolution of the cosmic density of molecular gases
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