Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/31270
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Li, Jianan | en_US |
dc.contributor.author | Wang, Ran | en_US |
dc.contributor.author | Riechers, Dominik | en_US |
dc.contributor.author | Walter, Fabian | en_US |
dc.contributor.author | DECARLI, ROBERTO | en_US |
dc.contributor.author | Venamans, Bram P. | en_US |
dc.contributor.author | Neri, Roberto | en_US |
dc.contributor.author | Shao, Yali | en_US |
dc.contributor.author | Fan, Xiaohui | en_US |
dc.contributor.author | Gao, Yu | en_US |
dc.contributor.author | Carilli, Chris L. | en_US |
dc.contributor.author | Omont, Alain | en_US |
dc.contributor.author | Cox, Pierre | en_US |
dc.contributor.author | Menten, Karl M. | en_US |
dc.contributor.author | Wagg, Jeff | en_US |
dc.contributor.author | Bertoldi, Frank | en_US |
dc.contributor.author | Narayanan, Desika | en_US |
dc.date.accessioned | 2021-12-28T11:44:28Z | - |
dc.date.available | 2021-12-28T11:44:28Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31270 | - |
dc.description.abstract | We report Atacama Large Millimeter/submillimeter Array observations of CO(8-7), (9-8), ${{\rm{H}}}_{2}{\rm{O}}({2}_{\mathrm{0,2}}\mbox{--}{1}_{\mathrm{1,1}})$ , and ${\mathrm{OH}}^{+}({1}_{1}\mbox{--}{0}_{1})$ and NOrthern Extended Millimeter Array observations of CO(5-4), (6-5), (12-11), and (13-12) toward the z = 6.003 quasar SDSS J231038.88+185519.7, aiming to probe the physical conditions of the molecular gas content of this source. We present the best sampled CO spectral line energy distribution (SLED) at z = 6.003, and analyzed it with the radiative transfer code MOLPOP-CEP. Fitting the CO SLED to a one-component model indicates a kinetic temperature T<SUB>kin</SUB> = 228 K, molecular gas density $\mathrm{log}(n({{\rm{H}}}_{2})/{\mathrm{cm}}^{-3}$ ) = 4.75, and CO column density $\mathrm{log}(N(\mathrm{CO})/{\mathrm{cm}}^{-2})=17.5$ ; although, a two-component model better fits the data. In either case, the CO SLED is dominated by a "warm" and "dense" component. Compared to samples of local (Ultra) Luminous Infrared Galaxies, starburst galaxies, and high-redshift submillimeter galaxies, J2310+1855 exhibits higher CO excitation at (J ≥ 8), like other high-redshift quasars. The high CO excitation, together with the enhanced ${L}_{{{\rm{H}}}_{2}{\rm{O}}}/{L}_{\mathrm{IR}}$ , ${L}_{{{\rm{H}}}_{2}{\rm{O}}}/{L}_{\mathrm{CO}}$ , and ${L}_{{\mathrm{OH}}^{+}}/{L}_{{{\rm{H}}}_{2}{\rm{O}}}$ ratios, suggests that besides the UV radiation from young massive stars, other mechanisms such as shocks, cosmic-rays, and X-rays might also be responsible for the heating and ionization of the molecular gas. In the nuclear region probed by the molecular emissions lines, any of these mechanisms might be present due to the powerful quasar and the starburst activity. | en_US |
dc.language.iso | eng | en_US |
dc.title | Probing the Full CO Spectral Line Energy Distribution (SLED) in the Nuclear Region of a Quasar-starburst System at z = 6.003 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4357/ab65fa | en_US |
dc.identifier.scopus | 2-s2.0-85081410893 | en_US |
dc.identifier.isi | WOS:000524909200001 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/ab65fa | en_US |
dc.identifier.url | https://api.elsevier.com/content/abstract/scopus_id/85081410893 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 889 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 162 | 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...889..162L | 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.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 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
1912.12813.pdf | preprint | 1.43 MB | Adobe PDF | View/Open |
Li_2020_ApJ_889_162.pdf | [Administrators only] | 1.6 MB | Adobe PDF |
Page view(s)
41
checked on Apr 18, 2024
Download(s)
28
checked on Apr 18, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.