Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/30997
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Li, Jianan | en_US |
dc.contributor.author | Wang, Ran | en_US |
dc.contributor.author | Cox, Pierre | en_US |
dc.contributor.author | Gao, Yu | en_US |
dc.contributor.author | Walter, Fabian | en_US |
dc.contributor.author | Wagg, Jeff | en_US |
dc.contributor.author | Menten, Karl M. | en_US |
dc.contributor.author | Bertoldi, Frank | en_US |
dc.contributor.author | Shao, Yali | en_US |
dc.contributor.author | Venemans, Bram P. | en_US |
dc.contributor.author | DECARLI, ROBERTO | en_US |
dc.contributor.author | Riechers, Dominik | en_US |
dc.contributor.author | Neri, Roberto | en_US |
dc.contributor.author | Fan, Xiaohui | en_US |
dc.contributor.author | Omont, Alain | en_US |
dc.contributor.author | Narayanan, Desika | en_US |
dc.date.accessioned | 2021-08-27T14:16:05Z | - |
dc.date.available | 2021-08-27T14:16:05Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30997 | - |
dc.description.abstract | Observing the interstellar medium (ISM) in the z ≳ 6 quasar host galaxies is essential for understanding the coevolution between supermassive black holes and their hosts. To probe the gas physical conditions and search for imprints of active galactic nuclei (AGNs) on the ISM, we report ALMA observations of the [N II]<SUB>122 μm</SUB> and [O I]<SUB>146 μm</SUB> lines and the underlying continuum from the z = 6.003 quasar SDSS J231038.88+185519.7. Together with previous [C II]<SUB>158 μm</SUB> and [O III]<SUB>88 μm</SUB> observations, we use the ratios of these fine-structure lines to probe the ISM properties. Similar to other high-z systems, this object exhibits a [C II]<SUB>158 μm</SUB>/[O I]<SUB>146 μm</SUB> ratio comparable to the lowest values found in local (ultra)luminous infrared galaxies, suggesting a "warmer" and "denser" gas component compared to typical local systems. The [O III]<SUB>88 μm</SUB>/[O I]<SUB>146 μm</SUB> ratio is lower than that of other local and high-z systems, indicating a smaller ionized gas fraction in this quasar. The [O III]<SUB>88 μm</SUB>/[N II]<SUB>122 μm</SUB> ratio is comparable to that of local systems and suggests a metallicity of Z/Z<SUB>⊙</SUB> = 1.5-2.1. Based on the [N II]<SUB>122 μm</SUB> detection, we estimate that 17% of the [C II]<SUB>158 μm</SUB> emission is associated with ionized gas. The [N II]<SUB>122 μm</SUB> line shows a "flux deficit" comparable to local systems. The [O I]<SUB>146 μm</SUB> line, with an [O I]<SUB>146 μm</SUB>/FIR ratio >2× than expected from the local relation, indicates no [O I]<SUB>146 μm</SUB> deficit. The low [C II]<SUB>158 μm</SUB>/[O I]<SUB>146 μm</SUB> ratio, together with the high [O I]<SUB>146 μm</SUB>/FIR ratio in J2310+1855, reveals that the warm and dense gas is likely a result of AGN heating of the ISM. | en_US |
dc.language.iso | eng | en_US |
dc.title | Ionized and Atomic Interstellar Medium in the z = 6.003 Quasar SDSS J2310+1855 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4357/ababac | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/ababac | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 900 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 131 | 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 | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2020ApJ...900..131L | 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 | 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.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0002-2662-8803 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2007.12339.pdf | postprint | 753.53 kB | Adobe PDF | View/Open |
Li_2020_ApJ_900_131.pdf | [Administrators only] | 1.55 MB | Adobe PDF | View/Open |
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