Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/26746
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Smith, J. D. T. | en_US |
dc.contributor.author | Croxall, Kevin | en_US |
dc.contributor.author | Draine, Bruce | en_US |
dc.contributor.author | De Looze, Ilse | en_US |
dc.contributor.author | Sandstrom, Karin | en_US |
dc.contributor.author | Armus, Lee | en_US |
dc.contributor.author | Beirão, Pedro | en_US |
dc.contributor.author | Bolatto, Alberto | en_US |
dc.contributor.author | Boquien, Mederic | en_US |
dc.contributor.author | Brandl, Bernhard | en_US |
dc.contributor.author | Crocker, Alison | en_US |
dc.contributor.author | Dale, Daniel A. | en_US |
dc.contributor.author | Galametz, Maud | en_US |
dc.contributor.author | Groves, Brent | en_US |
dc.contributor.author | Helou, George | en_US |
dc.contributor.author | Herrera-Camus, Rodrigo | en_US |
dc.contributor.author | HUNT, Leslie Kipp | en_US |
dc.contributor.author | Kennicutt, Robert | en_US |
dc.contributor.author | Walter, Fabian | en_US |
dc.contributor.author | Wolfire, Mark | en_US |
dc.date.accessioned | 2020-08-20T10:48:05Z | - |
dc.date.available | 2020-08-20T10:48:05Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26746 | - |
dc.description.abstract | We present [C II] 158 μm measurements from over 15,000 resolved regions within 54 nearby galaxies of the Kingfish program to investigate the so-called [C II] “line-cooling deficit” long known to occur in galaxies with different luminosities. The [C II]/TIR ratio ranges from above 1% to below 0.1% in the sample, with a mean value of 0.48 ± 0.21%. We find that the surface density of 24 μm emission dominates this trend, with [C II]/TIR dropping as ν {I}<SUB>ν </SUB>(24 μ {{m}}) increases. Deviations from this overall decline are correlated with changes in the gas-phase metal abundance, with higher metallicity associated with deeper deficits at a fixed surface brightness. We supplement the local sample with resolved [C II] measurements from nearby luminous infrared galaxies and high-redshift sources from z = 1.8-6.4, and find that star formation rate density drives a continuous trend of deepening [C II] deficit across six orders of magnitude in {{{Σ }}}<SUB>{{sfr</SUB>}}. The tightness of this correlation suggests that an approximate {{{Σ }}}<SUB>{{sfr</SUB>}} can be estimated directly from global measurements of [C II]/TIR, and a relation is provided to do so. Several low-luminosity active galactic nucleus (AGN) hosts in the sample show additional and significant central suppression of [C II]/TIR, but these deficit enhancements occur not in those AGNs with the highest X-ray luminosities, but instead those with the highest central starlight intensities. Taken together, these results demonstrate that the [C II] line-cooling line deficit in galaxies likely arises from local physical phenomena in interstellar gas. | en_US |
dc.language.iso | eng | en_US |
dc.title | The Spatially Resolved [CII] Cooling Line Deficit in Galaxies | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4357/834/1/5 | en_US |
dc.identifier.scopus | 2-s2.0-85010028177 | en_US |
dc.identifier.isi | 000391573000005 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/834/1/5 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 834 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 5 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 20 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | USA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2017ApJ...834....5S | en_US |
dc.relation.ercsector | PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | 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. Arcetri | - |
crisitem.author.orcid | 0000-0001-9162-2371 | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
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