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http://hdl.handle.net/20.500.12386/27675
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | DECARLI, ROBERTO | en_US |
dc.contributor.author | Walter, Fabian | en_US |
dc.contributor.author | Venemans, Bram P. | en_US |
dc.contributor.author | Bañados, Eduardo | en_US |
dc.contributor.author | Bertoldi, Frank | en_US |
dc.contributor.author | Carilli, Chris | en_US |
dc.contributor.author | Fan, Xiaohui | en_US |
dc.contributor.author | Farina, Emanuele Paolo | en_US |
dc.contributor.author | Mazzucchelli, Chiara | en_US |
dc.contributor.author | Riechers, Dominik | en_US |
dc.contributor.author | Rix, Hans-Walter | en_US |
dc.contributor.author | Strauss, Michael A. | en_US |
dc.contributor.author | Wang, Ran | en_US |
dc.contributor.author | Yang, Yujin | en_US |
dc.date.accessioned | 2020-10-07T15:45:54Z | - |
dc.date.available | 2020-10-07T15:45:54Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27675 | - |
dc.description.abstract | We present a survey of the [C II] 158 μm line and underlying far-infrared (FIR) dust continuum emission in a sample of 27 z≳ 6 quasars using the Atacama Large Millimeter Array (ALMA) at ∼ 1<SUP>\prime\prime</SUP> resolution. The [C II] line was significantly detected (at > 5-σ) in 23 sources (85%). We find typical line luminosities of {L}<SUB>[{{C</SUB>}{{II}}]}={10}<SUP>9-10</SUP> {L}<SUB>☉ </SUB>, and an average line width of ∼385 {km} {{{s}}}<SUP>-1</SUP>. The [C II]-to-far-infrared luminosity ratios ([C II]/FIR) in our sources span one order of magnitude, highlighting a variety of conditions in the star-forming medium. Four quasar host galaxies are clearly resolved in their [C II] emission on a few kpc scales. Basic estimates of the dynamical masses of the host galaxies give masses between 2 × 10<SUP>10</SUP> and 2 × 10<SUP>11</SUP> {M}<SUB>☉ </SUB>, i.e., more than an order of magnitude below what is expected from local scaling relations, given the available limits on the masses of the central black holes (> 3× {10}<SUP>8</SUP> {M}<SUB>☉ </SUB>, assuming Eddington-limited accretion). In stacked ALMA [C II] spectra of individual sources in our sample, we find no evidence of a deviation from a single Gaussian profile. The quasar luminosity does not strongly correlate with either the [C II] luminosity or equivalent width. This survey (with typical on-source integration times of 8 minutes) showcases the unparalleled sensitivity of ALMA at millimeter wavelengths, and offers a unique reference sample for the study of the first massive galaxies in the universe. | en_US |
dc.language.iso | eng | en_US |
dc.title | An ALMA [C II] Survey of 27 Quasars at z > 5.94 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4357/aaa5aa | en_US |
dc.identifier.scopus | 2-s2.0-85042693377 | en_US |
dc.identifier.isi | 000425306100020 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/aaa5aa | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 854 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 97 | en_US |
dc.type.referee | REF_1 | 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 | 2018ApJ...854...97D | 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 | OAS Bologna | - |
crisitem.author.orcid | 0000-0002-2662-8803 | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
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