Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/31889
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cullen, F. | en_US |
dc.contributor.author | McLure, R. J. | en_US |
dc.contributor.author | Dunlop, J. S. | en_US |
dc.contributor.author | Carnall, A. C. | en_US |
dc.contributor.author | McLeod, D. J. | en_US |
dc.contributor.author | Shapley, A. E. | en_US |
dc.contributor.author | Amorín, R. | en_US |
dc.contributor.author | BOLZONELLA, MICOL | en_US |
dc.contributor.author | CASTELLANO, MARCO | en_US |
dc.contributor.author | Cimatti, A. | en_US |
dc.contributor.author | Cirasuolo, M. | en_US |
dc.contributor.author | CUCCIATI, Olga | en_US |
dc.contributor.author | FONTANA, Adriano | en_US |
dc.contributor.author | FONTANOT, Fabio | en_US |
dc.contributor.author | GARILLI, BIANCA MARIA ROSA | en_US |
dc.contributor.author | Guaita, L. | en_US |
dc.contributor.author | Jarvis, M. J. | en_US |
dc.contributor.author | PENTERICCI, Laura | en_US |
dc.contributor.author | POZZETTI, Lucia | en_US |
dc.contributor.author | Talia, M. | en_US |
dc.contributor.author | Zamorani, G. | en_US |
dc.contributor.author | Calabrò, A. | en_US |
dc.contributor.author | CRESCI, GIOVANNI | en_US |
dc.contributor.author | Fynbo, J. P. U. | en_US |
dc.contributor.author | Hathi, N. P. | en_US |
dc.contributor.author | Giavalisco, M. | en_US |
dc.contributor.author | Koekemoer, A. | en_US |
dc.contributor.author | MANNUCCI, FILIPPO | en_US |
dc.contributor.author | SAXENA, AAYUSH | en_US |
dc.date.accessioned | 2022-03-24T15:43:30Z | - |
dc.date.available | 2022-03-24T15:43:30Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31889 | - |
dc.description.abstract | We present the results of a new study investigating the relationship between observed Ly α equivalent width (W<SUB>λ</SUB>(Ly α)) and the metallicity of the ionizing stellar population ( Z<SUB>⋆</SUB>) for a sample of 768 star-forming galaxies at 3 ≤ z ≤ 5 drawn from the VANDELS survey. Dividing our sample into quartiles of rest-frame W<SUB>λ</SUB>(Ly α) across the range $-58 \,\rm {\mathring{\rm A}} \lesssim$ W<SUB>λ</SUB>(Ly α) $\lesssim 110 \,\rm {\mathring{\rm A}}$ , we determine Z<SUB>⋆</SUB> from full spectral fitting of composite far-ultraviolet spectra and find a clear anticorrelation between W<SUB>λ</SUB>(Ly α) and Z<SUB>⋆</SUB>. Our results indicate that Z<SUB>⋆</SUB> decreases by a factor ≳ 3 between the lowest W<SUB>λ</SUB>(Ly α) quartile (<W<SUB>λ</SUB>(Ly α) $\rangle =-18\,\rm {\mathring{\rm A}}$ ) and the highest W<SUB>λ</SUB>(Ly α) quartile (<W<SUB>λ</SUB>(Ly α) $\rangle =24\,\rm {\mathring{\rm A}}$ ). Similarly, galaxies typically defined as Lyman alpha emitters (LAEs; W<SUB>λ</SUB>(Ly α) $\gt 20\,\rm {\mathring{\rm A}}$ ) are, on average, metal poor with respect to the non-LAE galaxy population (W<SUB>λ</SUB>(Ly α) $\le 20\,\rm {\mathring{\rm A}}$ ) with Z<SUB>⋆</SUB><SUB>non-LAE</SUB> ≳ 2 × Z<SUB>⋆</SUB><SUB>LAE</SUB>. Finally, based on the best-fitting stellar models, we estimate that the increasing strength of the stellar ionizing spectrum towards lower Z<SUB>⋆</SUB> is responsible for ${\simeq}15{-}25{{\ \rm per\ cent}}$ of the observed variation in W<SUB>λ</SUB>(Ly α) across our sample, with the remaining contribution ( ${\simeq}75{-}85{{\ \rm per\ cent}}$ ) being due to a decrease in the H I/dust covering fractions in low- Z<SUB>⋆</SUB> galaxies. | en_US |
dc.language.iso | eng | en_US |
dc.title | The VANDELS survey: a strong correlation between Ly α equivalent width and stellar metallicity at 3 ≤ z ≤ 5 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/staa1260 | en_US |
dc.identifier.scopus | 2-s2.0-85091979874 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/495/1/1501/5835232?login=true | en_US |
dc.identifier.url | http://arxiv.org/abs/2001.11063v2 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 495 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 1501 | en_US |
dc.relation.lastpage | 1510 | 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.contributor.country | FRA | en_US |
dc.contributor.country | DEU | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2020MNRAS.495.1501C | 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.fulltext | With Fulltext | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | OAS Bologna | - |
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 | OAS Bologna | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.orcid | 0000-0003-3278-4607 | - |
crisitem.author.orcid | 0000-0001-9875-8263 | - |
crisitem.author.orcid | 0000-0002-9336-7551 | - |
crisitem.author.orcid | 0000-0003-3820-2823 | - |
crisitem.author.orcid | 0000-0003-4744-0188 | - |
crisitem.author.orcid | 0000-0001-7455-8750 | - |
crisitem.author.orcid | 0000-0001-8940-6768 | - |
crisitem.author.orcid | 0000-0001-7085-0412 | - |
crisitem.author.orcid | 0000-0002-5281-1417 | - |
crisitem.author.orcid | 0000-0002-4803-2381 | - |
crisitem.author.orcid | 0000-0001-5333-9970 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Cullen20.pdf | Pdf editoriale | 1.58 MB | Adobe PDF | View/Open |
Page view(s)
60
checked on Aug 5, 2024
Download(s)
8
checked on Aug 5, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.