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http://hdl.handle.net/20.500.12386/27552
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | ZANELLA, ANITA | en_US |
dc.contributor.author | Daddi, E. | en_US |
dc.contributor.author | Magdis, G. | en_US |
dc.contributor.author | Diaz Santos, T. | en_US |
dc.contributor.author | Cormier, D. | en_US |
dc.contributor.author | Liu, D. | en_US |
dc.contributor.author | Cibinel, A. | en_US |
dc.contributor.author | Gobat, R. | en_US |
dc.contributor.author | Dickinson, M. | en_US |
dc.contributor.author | Sargent, M. | en_US |
dc.contributor.author | Popping, G. | en_US |
dc.contributor.author | Madden, S. C. | en_US |
dc.contributor.author | Bethermin, M. | en_US |
dc.contributor.author | Hughes, T. M. | en_US |
dc.contributor.author | Valentino, F. | en_US |
dc.contributor.author | Rujopakarn, W. | en_US |
dc.contributor.author | Pannella, M. | en_US |
dc.contributor.author | Bournaud, F. | en_US |
dc.contributor.author | Walter, F. | en_US |
dc.contributor.author | Wang, T. | en_US |
dc.contributor.author | Elbaz, D. | en_US |
dc.contributor.author | Coogan, R. T. | en_US |
dc.date.accessioned | 2020-10-02T11:03:01Z | - |
dc.date.available | 2020-10-02T11:03:01Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27552 | - |
dc.description.abstract | We present ALMA Band 9 observations of the [C II]158 μm emission for a sample of 10 main-sequence galaxies at redshift z ∼ 2, with typical stellar masses (log M<SUB>⋆</SUB>/M<SUB>☉</SUB> ∼ 10.0-10.9) and star formation rates (∼35-115 M<SUB>☉</SUB> yr<SUP>-1</SUP>). Given the strong and well-understood evolution of the interstellar medium from the present to z = 2, we investigate the behaviour of the [C II] emission and empirically identify its primary driver. We detect [C II] from six galaxies (four secure and two tentative) and estimate ensemble averages including non-detections. The [C II]-to-infrared luminosity ratio ([C II]/L<SUB>IR</SUB>) of our sample is similar to that of local main-sequence galaxies (∼2 × 10<SUP>-3</SUP>), and ∼10 times higher than that of starbursts. The [C II] emission has an average spatial extent of 4-7 kpc, consistent with the optical size. Complementing our sample with literature data, we find that the [C II] luminosity correlates with galaxies' molecular gas mass, with a mean absolute deviation of 0.2 dex and without evident systematics: the [C II]-to-H<SUB>2</SUB> conversion factor (α _[C II] ∼ 30 M<SUB>☉</SUB>/L<SUB>☉</SUB>) is largely independent of galaxies' depletion time, metallicity, and redshift. [C II] seems therefore a convenient tracer to estimate galaxies' molecular gas content regardless of their starburst or main-sequence nature, and extending to metal-poor galaxies at low and high redshifts. The dearth of [C II] emission reported for z > 6-7 galaxies might suggest either a high star formation efficiency or a small fraction of ultraviolet light from star formation reprocessed by dust. | en_US |
dc.language.iso | eng | en_US |
dc.title | The [C II] emission as a molecular gas mass tracer in galaxies at low and high redshifts | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/sty2394 | en_US |
dc.identifier.scopus | 2-s2.0-85058453548 | en_US |
dc.identifier.isi | 000449764000040 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article-abstract/481/2/1976/5090172 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 481 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 1976 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018MNRAS.481.1976Z | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_6 Stars and stellar systems | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.orcid | 0000-0001-8600-7008 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
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1808.10331.pdf | 9.46 MB | Adobe PDF | Visualizza/apri | |
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