Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/30110
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Berg, Trystyn A. M. | en_US |
dc.contributor.author | Ellison, Sara L. | en_US |
dc.contributor.author | SANCHEZ RAMIREZ, RUBEN | en_US |
dc.contributor.author | López, Sebastián | en_US |
dc.contributor.author | D'ODORICO, Valentina | en_US |
dc.contributor.author | Becker, George D. | en_US |
dc.contributor.author | Christensen, Lise | en_US |
dc.contributor.author | CUPANI, Guido | en_US |
dc.contributor.author | Denney, Kelly D. | en_US |
dc.contributor.author | Worseck, Gábor | en_US |
dc.date.accessioned | 2021-01-29T16:28:04Z | - |
dc.date.available | 2021-01-29T16:28:04Z | - |
dc.date.issued | 2019 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30110 | - |
dc.description.abstract | Sub-damped Lyman α systems (subDLAs; H I column densities of 19.0 ≤ logN(H I) < 20.3) are rarely included in the cosmic H I census performed at redshifts z<SUB>abs</SUB> ≳ 1.5, yet are expected to contribute significantly to the overall H I mass budget of the Universe. In this paper, we present a blindly selected sample of 155 subDLAs found along 100 quasar sightlines (with a redshift path-length ∆X = 475) in the XQ-100 legacy survey to investigate the contribution of subDLAs to the H I mass density of the Universe. The impact of X-Shooter's spectral resolution on Ly α absorber identification is evaluated, and found to be sufficient for reliably finding absorbers down to a column density of logN(H I) ≥ 18.9. We compared the implications of searching for subDLAs solely using H I absorption versus the use of metal lines to confirm the identification, and found that metal-selection techniques would have missed 75 subDLAs. Using a bootstrap Monte Carlo simulation, we computed the column density distribution function (f(N, X)) and the cosmological H I mass density (Ω _{H I) of subDLAs and compared with our previous work based on the XQ-100 damped Lyman α systems. We do not find any significant redshift evolution in f(N, X) or Ω _{H I for subDLAs. However, subDLAs contribute 10-20 per cent of the total Ω _{H I measured at redshifts 2 < z < 5, and thus have a small but significant contribution to the H I budget of the Universe. | en_US |
dc.language.iso | eng | en_US |
dc.title | Sub-damped Lyman α systems in the XQ-100 survey - I. Identification and contribution to the cosmological H I budget | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stz2012 | en_US |
dc.identifier.scopus | 2-s2.0-85082594154 | en_US |
dc.identifier.isi | 000485158400101 | en_US |
dc.identifier.url | http://arxiv.org/abs/1907.07703v1 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/488/3/4356/5538822 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 488 | en_US |
dc.relation.issue | 3 | en_US |
dc.relation.firstpage | 4356 | en_US |
dc.relation.lastpage | 4369 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 10 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | USA | en_US |
dc.contributor.country | DEU | en_US |
dc.contributor.country | ESP | en_US |
dc.contributor.country | CAN | en_US |
dc.contributor.country | CHL | en_US |
dc.contributor.country | DNK | 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 | 2019MNRAS.488.4356B | 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. Trieste | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.orcid | 0000-0002-7158-5099 | - |
crisitem.author.orcid | 0000-0003-3693-3091 | - |
crisitem.author.orcid | 0000-0002-6830-9093 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
berg_2019_mnras.pdf | Pdf editoriale | 3.61 MB | Adobe PDF | Visualizza/apri |
Page view(s)
47
controllato il 26-apr-2024
Download(s)
20
controllato il 26-apr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.