Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/34558
DC Field | Value | Language |
---|---|---|
dc.contributor.author | VANZELLA, Eros | en_US |
dc.contributor.author | MENEGHETTI, MASSIMO | en_US |
dc.contributor.author | Caminha, G. B. | en_US |
dc.contributor.author | CASTELLANO, Marco | en_US |
dc.contributor.author | CALURA, Francesco | en_US |
dc.contributor.author | Rosati, Piero | en_US |
dc.contributor.author | GRILLO, CLAUDIO | en_US |
dc.contributor.author | Dijkstra, M. | en_US |
dc.contributor.author | Gronke, M. | en_US |
dc.contributor.author | Sani, E. | en_US |
dc.contributor.author | MERCURIO, Amata | en_US |
dc.contributor.author | TOZZI, Paolo | en_US |
dc.contributor.author | NONINO, Mario | en_US |
dc.contributor.author | CRISTIANI, Stefano | en_US |
dc.contributor.author | MIGNOLI, Marco | en_US |
dc.contributor.author | PENTERICCI, Laura | en_US |
dc.contributor.author | GILLI, Roberto | en_US |
dc.contributor.author | Treu, Tommaso | en_US |
dc.contributor.author | Caputi, K. | en_US |
dc.contributor.author | CUPANI, Guido | en_US |
dc.contributor.author | FONTANA, Adriano | en_US |
dc.contributor.author | GRAZIAN, Andrea | en_US |
dc.contributor.author | Balestra, Italo | en_US |
dc.date.accessioned | 2024-01-19T09:56:14Z | - |
dc.date.available | 2024-01-19T09:56:14Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 1745-3925 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/34558 | - |
dc.description.abstract | We discovered a strongly lensed (μ ≳ 40) Ly α emission at z = 6.629 (S/N ≃ 18) in the MUSE Deep Lensed Field (MDLF) targeting the Hubble Frontier Field (HFF) galaxy cluster MACS J0416. Dedicated lensing simulations imply that the Ly α emitting region necessarily crosses the caustic. The arc-like shape of the Ly α extends 3 arcsec on the observed plane and is the result of two merged multiple images, each one with a de-lensed Ly α luminosity L ≲ 2.8 × 10<SUP>40</SUP> erg s<SUP>-1</SUP> arising from a confined region (≲150 pc effective radius). A spatially unresolved Hubble Space Telescope(HST) counterpart is barely detected at S/N ≃ 2 after stacking the near-infrared bands, corresponding to an observed (intrinsic) magnitude m<SUB>1500</SUB> ≳ 30.8 (≳35.0). The inferred rest-frame Ly α equivalent width is EW<SUB>0</SUB> > 1120 Šif the IGM transmission is T<SUB>IGM</SUB> < 0.5. The low luminosities and the extremely large Ly α EW<SUB>0</SUB> match the case of a Population III (Pop III) star complex made of several dozens stars (∼10<SUP>4</SUP> M<SUB>⊙</SUB>) that irradiate an H II region crossing the caustic. While the Ly α and stellar continuum are among the faintest ever observed at this redshift, the continuum and the Ly α emissions could be affected by differential magnification, possibly biasing the EW<SUB>0</SUB> estimate. The aforementioned tentative HST detection tends to favour a large EW<SUB>0</SUB>, making such a faint Pop III candidate a key target for the James Webb Space Telescope and Extremely Large Telescopes. | en_US |
dc.language.iso | eng | en_US |
dc.title | Candidate Population III stellar complex at z = 6.629 in the MUSE Deep Lensed Field | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnrasl/slaa041 | en_US |
dc.identifier.scopus | 2-s2.0-85098986373 | en_US |
dc.identifier.url | https://academic.oup.com/mnrasl/article/494/1/L81/5804734?login=false | en_US |
dc.identifier.url | http://arxiv.org/abs/2001.03619v2 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 494 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | L81 | en_US |
dc.relation.lastpage | L85 | 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 | NLD | 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 | 2020MNRAS.494L..81V | 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.dept | OAS Bologna | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | IASF Milano | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.orcid | 0000-0002-5057-135X | - |
crisitem.author.orcid | 0000-0003-1225-7084 | - |
crisitem.author.orcid | 0000-0001-9875-8263 | - |
crisitem.author.orcid | 0000-0002-6175-0871 | - |
crisitem.author.orcid | 0000-0002-6813-0632 | - |
crisitem.author.orcid | 0000-0001-9261-7849 | - |
crisitem.author.orcid | 0000-0003-3096-9966 | - |
crisitem.author.orcid | 0000-0001-6342-9662 | - |
crisitem.author.orcid | 0000-0002-2115-5234 | - |
crisitem.author.orcid | 0000-0002-9087-2835 | - |
crisitem.author.orcid | 0000-0001-8940-6768 | - |
crisitem.author.orcid | 0000-0001-8121-6177 | - |
crisitem.author.orcid | 0000-0002-6830-9093 | - |
crisitem.author.orcid | 0000-0003-3820-2823 | - |
crisitem.author.orcid | 0000-0002-5688-0663 | - |
crisitem.journal.journalissn | 1745-3925 | - |
crisitem.journal.ance | E205843 | - |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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mnrasl_494_1_l81.pdf | PDF editoriale | 2.02 MB | Adobe PDF | View/Open |
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