Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/30775
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | VANZELLA, Eros | en_US |
dc.contributor.author | NONINO, Mario | en_US |
dc.contributor.author | CUPANI, Guido | en_US |
dc.contributor.author | CASTELLANO, MARCO | en_US |
dc.contributor.author | Sani, E. | en_US |
dc.contributor.author | MIGNOLI, Marco | en_US |
dc.contributor.author | CALURA, Francesco | en_US |
dc.contributor.author | MENEGHETTI, MASSIMO | en_US |
dc.contributor.author | GILLI, Roberto | en_US |
dc.contributor.author | COMASTRI, Andrea | en_US |
dc.contributor.author | MERCURIO, AMATA | en_US |
dc.contributor.author | Caminha, G. B. | en_US |
dc.contributor.author | Caputi, K. | en_US |
dc.contributor.author | Rosati, P. | en_US |
dc.contributor.author | Grillo, C. | en_US |
dc.contributor.author | CRISTIANI, Stefano | en_US |
dc.contributor.author | Balestra, I. | en_US |
dc.contributor.author | FONTANA, Adriano | en_US |
dc.contributor.author | Giavalisco, M. | en_US |
dc.date.accessioned | 2021-04-16T15:25:26Z | - |
dc.date.available | 2021-04-16T15:25:26Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 1745-3925 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30775 | - |
dc.description.abstract | We report on the serendipitous discovery of a z = 4.0, M<SUB>1500</SUB> = -22.20 star-forming galaxy (Ion3) showing copious Lyman continuum (LyC) leakage (˜60 per cent escaping), a remarkable multiple peaked Ly α emission, and significant Ly α radiation directly emerging at the resonance frequency. This is the highest redshift confirmed LyC emitter in which the ionizing and Ly α radiation possibly share a common ionized channel (with N<SUB>H I</SUB> < 10<SUP>17.2</SUP> cm<SUP>-2</SUP>). Ion3 is spatially resolved, it shows clear stellar winds signatures like the P-Cygni N Vλ1240 profile, and has blue ultraviolet continuum (β = -2.5 ± 0.25, F<SUB>λ</SUB> ˜ λ<SUP>β</SUP>) with weak low-ionization interstellar metal lines. Deep VLT/HAWKI Ks and Spitzer/IRAC 3.6 and 4.5μm imaging show a clear photometric signature of the H α line with equivalent width of 1000 Å rest-frame emerging over a flat continuum (Ks - 4.5μm ≃ 0). From the SED fitting, we derive a stellar mass of 1.5 × 10<SUP>9</SUP> M<SUB>⊙</SUB>, SFR of 140 M<SUB>⊙</SUB> yr<SUP>-1</SUP> and age of ˜10 Myr, with a low dust extinction, E(B - V) ≲ 0.1, placing the source in the starburst region of the SFR-M* plane. Ion3 shows similar properties of another LyC emitter previously discovered (z = 3.21, Ion2, Vanzella et al. 2016). Ion3 (and Ion2) represents ideal high-redshift reference cases to guide the search for reionizing sources at z > 6.5 with JWST. | en_US |
dc.language.iso | eng | en_US |
dc.title | Direct Lyman continuum and Ly α escape observed at redshift 4 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnrasl/sly023 | en_US |
dc.identifier.scopus | 2-s2.0-85044376068 | en_US |
dc.identifier.url | https://academic.oup.com/mnrasl/article/476/1/L15/4850647 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 476 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | L15 | en_US |
dc.relation.lastpage | L19 | en_US |
dc.relation.numberofpages | 6 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | USA | en_US |
dc.contributor.country | GBR | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. LETTERS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018MNRAS.476L..15V | en_US |
dc.description.apc | sì | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.orcid | 0000-0002-5057-135X | - |
crisitem.author.orcid | 0000-0001-6342-9662 | - |
crisitem.author.orcid | 0000-0002-6830-9093 | - |
crisitem.author.orcid | 0000-0001-9875-8263 | - |
crisitem.author.orcid | 0000-0002-9087-2835 | - |
crisitem.author.orcid | 0000-0002-6175-0871 | - |
crisitem.author.orcid | 0000-0003-1225-7084 | - |
crisitem.author.orcid | 0000-0001-8121-6177 | - |
crisitem.author.orcid | 0000-0003-3451-9970 | - |
crisitem.author.orcid | 0000-0001-9261-7849 | - |
crisitem.author.orcid | 0000-0002-2115-5234 | - |
crisitem.author.orcid | 0000-0003-3820-2823 | - |
crisitem.journal.journalissn | 1745-3925 | - |
crisitem.journal.ance | E205843 | - |
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