Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/27891
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Feruglio, Chiara | en_US |
dc.contributor.author | Ferrara, A. | en_US |
dc.contributor.author | Bischetti, M. | en_US |
dc.contributor.author | Downes, Dennis | en_US |
dc.contributor.author | Neri, Roberto | en_US |
dc.contributor.author | Ceccarelli, C. | en_US |
dc.contributor.author | CICONE, CLAUDIA | en_US |
dc.contributor.author | FIORE, Fabrizio | en_US |
dc.contributor.author | Gallerani, S. | en_US |
dc.contributor.author | Maiolino, R. | en_US |
dc.contributor.author | MENCI, Nicola | en_US |
dc.contributor.author | Piconcelli, E. | en_US |
dc.contributor.author | VIETRI, GIUSTINA | en_US |
dc.contributor.author | Vignali, C. | en_US |
dc.contributor.author | ZAPPACOSTA, Luca | en_US |
dc.date.accessioned | 2020-10-19T11:53:19Z | - |
dc.date.available | 2020-10-19T11:53:19Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0004-6361 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27891 | - |
dc.description.abstract | We have performed a high sensitivity observation of the UFO/BAL quasar APM 08279+5255 at z = 3.912 with NOEMA at 3.2 mm, aimed at detecting fast moving molecular gas. We report the detection of blueshifted CO(4-3) with maximum velocity (v95%) of -1340 km s<SUP>-1</SUP>, with respect to the systemic peak emission, and a luminosity of L' = 9.9 × 10<SUP>9</SUP>μ<SUP>-1</SUP> K km s<SUP>-1</SUP> pc<SUP>-2</SUP>, where μ is the lensing magnification factor. We discuss various scenarios for the nature of this emission and conclude that this is the first detection of fast molecular gas at redshift > 3. We derived a mass flow rate of molecular gas in the range Ṁ = 3-7.4 × 10<SUP>3</SUP>M<SUB>☉</SUB>/yr and momentum boost Ṗ<SUB>OF</SUB>/Ṗ<SUB>AGN</SUB> 2-6, which is therefore consistent with a momentum conserving flow. For the largest Ṗ<SUB>OF</SUB> the scaling is also consistent with an energy conserving flow with an efficiency of 10-20%. The present data can hardly discriminate between the two expansion modes. The mass loading factor of the molecular outflow η = Ṁ<SUB>OF</SUB>/SFR is ≫ 1. We also detected a molecular emission line at a frequency of 94.83 GHz corresponding to a rest-frame frequency of 465.8 GHz; we tentatively identified this frequency with the cation molecule N<SUB>2</SUB>H<SUP>+</SUP>(5-4), which would be the first detection of this species at high redshift. We discuss the alternative possibility that this emission is due to a CO emission line from the, so far undetected, lens galaxy. Further observations of additional transitions of the same species with NOEMA can discriminate between the two scenarios. <P />This work is based on observations carried out under project numbers S15CW and E15AF with the IRAM NOEMA Interferometer. IRAM is supported by INSU/CNRS (France), MPG (Germany), and IGN (Spain). The reduced spectrum (FITS file) is only available at the CDS via anonymous ftp to <A href="http://cdsarc.u-strasbg.fr">http://cdsarc.u-strasbg.fr</A> (<A href="http://130.79.128.5">http://130.79.128.5</A>) or via <A href="http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/608/A30">http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/608/A30 | - |
dc.language.iso | eng | - |
dc.title | On the discovery of fast molecular gas in the UFO/BAL quasar APM 08279+5255 at z = 3.912 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/201731387 | - |
dc.identifier.scopus | 2-s2.0-85037033241 | - |
dc.identifier.isi | 000416945700010 | - |
dc.identifier.url | https://www.aanda.org/articles/aa/abs/2017/12/aa31387-17/aa31387-17.html | - |
dc.relation.medium | STAMPA | - |
dc.relation.volume | 608 | - |
dc.relation.firstpage | A30 | - |
dc.type.referee | REF_1 | - |
dc.description.international | sì | en_US |
dc.contributor.country | FRA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | - |
dc.relation.journal | ASTRONOMY & ASTROPHYSICS | - |
dc.type.miur | 262 Articolo in rivista | en_US |
dc.identifier.adsbibcode | 2017A&A...608A..30F | - |
dc.relation.ercsector | PE9 | - |
dc.description.apc | no | - |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
crisitem.journal.journalissn | 0004-6361 | - |
crisitem.journal.ance | E016240 | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | IASF Milano | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.orcid | 0000-0002-4227-6035 | - |
crisitem.author.orcid | 0000-0002-4314-021X | - |
crisitem.author.orcid | 0000-0003-0522-6941 | - |
crisitem.author.orcid | 0000-0002-4031-4157 | - |
crisitem.author.orcid | 0000-0002-4096-2680 | - |
crisitem.author.orcid | 0000-0001-9155-8875 | - |
crisitem.author.orcid | 0000-0002-4205-6884 | - |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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aa31387-17.pdf | Pdf editoriale | 370.67 kB | Adobe PDF | View/Open |
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