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http://hdl.handle.net/20.500.12386/31423
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Travascio, A. | en_US |
dc.contributor.author | ZAPPACOSTA, Luca | en_US |
dc.contributor.author | Cantalupo, S. | en_US |
dc.contributor.author | PICONCELLI, Enrico | en_US |
dc.contributor.author | Arrigoni Battaia, F. | en_US |
dc.contributor.author | Ginolfi, M. | en_US |
dc.contributor.author | BISCHETTI, MANUELA | en_US |
dc.contributor.author | VIETRI, GIUSTINA | en_US |
dc.contributor.author | BONGIORNO, ANGELA | en_US |
dc.contributor.author | D'ODORICO, Valentina | en_US |
dc.contributor.author | DURAS, FEDERICA | en_US |
dc.contributor.author | Feruglio, Chiara | en_US |
dc.contributor.author | Vignali, C. | en_US |
dc.contributor.author | FIORE, Fabrizio | en_US |
dc.date.accessioned | 2022-02-18T16:19:56Z | - |
dc.date.available | 2022-02-18T16:19:56Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 0004-6361 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31423 | - |
dc.description.abstract | Context. In recent years, Lyα nebulae have been routinely detected around high redshift, radio-quiet quasars thanks to the advent of the highly sensitive integral field spectrographs. Constraining the physical properties of the Lyα nebulae is crucial for a full understanding of the circum-galactic medium (CGM). The CGM acts both as a repository for intergalactic and galactic baryons as well as a venue of feeding and feedback processes. The most luminous quasars are privileged test-beds to study these processes, given their large ionising fluxes and dense CGM environments in which they are expected to be embedded. <BR /> Aims: We aim to characterise the rest-frame ultraviolet (UV) emission lines in the CGM around a hyper-luminous, broad emission line, radio-quiet quasar at z ∼ 3.6, which exhibits powerful outflows at both nuclear and host galaxy scales. <BR /> Methods: We analyse VLT/MUSE observations of the quasar J1538+08 (L<SUB>bol</SUB> = 6 × 10<SUP>47</SUP> erg s<SUP>-1</SUP>), and we performed a search for extended UV emission lines to characterise its morphology, emissivity, kinematics, and metal content. <BR /> Results: We report the discovery of a very luminous (∼2 × 10<SUP>44</SUP> erg s<SUP>-1</SUP>), giant Lyα nebula and a likely associated extended (75 kpc) CIV nebula. The Lyα nebula emission exhibits moderate blueshift (∼440 km s<SUP>-1</SUP>) compared to the quasar systemic redshift and a large average velocity dispersion (σ¯<SUB>v</SUB> ∼ 700 km s<SUP>-1</SUP>) across the nebula, while the CIV nebula shows average velocity dispersion of σ¯<SUB>v</SUB> ∼ 350 km s<SUP>-1</SUP>. The Lyα line profile exhibits a significant asymmetry towards negative velocity values at 20-30 kpc south of the quasar and is well parametrised by the following two Gaussian components: a narrow (σ ∼ 470 km s<SUP>-1</SUP>) systemic one plus a broad (σ ∼ 1200 km s<SUP>-1</SUP>), blueshifted (∼1500 km s<SUP>-1</SUP>) one. <BR /> Conclusions: Our analysis of the MUSE observation of J1538+08 reveals metal-enriched CGM around this hyper-luminous quasar. Furthermore, our detection of blueshifted emission in the emission profile of the Lyα nebula suggests that powerful nuclear outflows can propagate through the CGM over tens of kiloparsecs. <P />The reduced datacube is only available at the CDS via anonymous ftp to <A href="http://cdsarc.u-strasbg.fr/">http://cdsarc.u-strasbg.fr</A> (ftp://130.79.128.5) or via <A href="http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/635/A157">http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/635/A157</A> <P />Based on data obtained with the European Southern Observatory Very Large Telescope, Paranal, Chile, under Programme 099.A-0316(A). | en_US |
dc.language.iso | eng | en_US |
dc.title | The WISSH quasars project. VIII. Outflows and metals in the circum-galactic medium around the hyper-luminous z ∼ 3.6 quasar J1538+08 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/201936197 | en_US |
dc.identifier.scopus | 2-s2.0-85082988764 | en_US |
dc.identifier.isi | WOS:000526664700001 | en_US |
dc.identifier.url | https://www.aanda.org/articles/aa/full_html/2020/03/aa36197-19/aa36197-19.html | en_US |
dc.identifier.url | http://arxiv.org/abs/2001.07218v1 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 635 | en_US |
dc.relation.firstpage | A157 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 14 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | DEU | en_US |
dc.contributor.country | CHE | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | ASTRONOMY & ASTROPHYSICS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2020A&A...635A.157T | 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::PE9_8 Formation and evolution of galaxies | 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. Roma | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | IASF Milano | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | IAPS Roma | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.orcid | 0000-0002-4205-6884 | - |
crisitem.author.orcid | 0000-0001-9095-2782 | - |
crisitem.author.orcid | 0000-0002-4314-021X | - |
crisitem.author.orcid | 0000-0001-9155-8875 | - |
crisitem.author.orcid | 0000-0002-0101-6624 | - |
crisitem.author.orcid | 0000-0003-3693-3091 | - |
crisitem.author.orcid | 0000-0002-4227-6035 | - |
crisitem.author.orcid | 0000-0002-4031-4157 | - |
crisitem.journal.journalissn | 0004-6361 | - |
crisitem.journal.ance | E016240 | - |
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travascio2020_2.pdf | article part2 | 8.18 MB | Adobe PDF | Visualizza/apri |
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