Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/32103
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Rybak, Matus | en_US |
dc.contributor.author | Da Cunha, E. | en_US |
dc.contributor.author | Groves, B. | en_US |
dc.contributor.author | Hodge, J. A. | en_US |
dc.contributor.author | Aravena, M. | en_US |
dc.contributor.author | Maseda, M. | en_US |
dc.contributor.author | Boogaard, L. | en_US |
dc.contributor.author | Berg, D. | en_US |
dc.contributor.author | Charlot, S. | en_US |
dc.contributor.author | DECARLI, ROBERTO | en_US |
dc.contributor.author | Erb, D. K. | en_US |
dc.contributor.author | Nelson, E. | en_US |
dc.contributor.author | Pacifici, C. | en_US |
dc.contributor.author | Schmidt, K. B. | en_US |
dc.contributor.author | Walter, F. | en_US |
dc.contributor.author | Van Der Wel, A. | en_US |
dc.date.accessioned | 2022-05-27T14:58:06Z | - |
dc.date.available | 2022-05-27T14:58:06Z | - |
dc.date.issued | 2021 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/32103 | - |
dc.description.abstract | Extreme emission-line galaxies (EELGs) at redshift z = 1-2 provide a unique view of metal-poor, starburst sources that are the likely drivers of the cosmic reionization at z ≥ 6. However, the molecular gas reservoirs of EELGs - the fuel for their intense star formation - remain beyond the reach of current facilities. We present ALMA [C ii] and PdBI CO(2-1) observations of the z = 1.8, strongly lensed EELG SL2S 0217, a bright Lyα emitter with a metallicity 0.05 Z o˙. We obtain a tentative (∼3σ-4σ) detection of the [C ii] line and set an upper limit on the [C ii]/SFR (star-forming rate) ratio of ≤1 106 L o˙/(M o˙ yr-1), based on the synthesized images and visibility-plane analysis. The CO(2-1) emission is not detected. Photoionization modeling indicates that up to 80% of the [C ii] emission originates from neutral or molecular gas, although we cannot rule out that the gas is fully ionized. The very faint [C ii] emission is in line with both nearby metal-poor dwarfs and high-redshift Lyα emitters, and predictions from hydrodynamical simulations. However, the [C ii] line is 30 fainter than predicted by the De Looze et al. [C ii]-SFR relation for local dwarfs, illustrating the danger of extrapolating locally calibrated relations to high-redshift, metal-poor galaxies. | en_US |
dc.language.iso | eng | en_US |
dc.title | Ultrafaint [C ii] Emission in a Redshift = 2 Gravitationally Lensed Metal-poor Dwarf Galaxy | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4357/abd946 | en_US |
dc.identifier.scopus | 2-s2.0-85103300490 | en_US |
dc.identifier.url | https://api.elsevier.com/content/abstract/scopus_id/85103300490 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/abd946 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 909 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 130 | en_US |
dc.type.referee | REF_1 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
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.orcid | 0000-0002-2662-8803 | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
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Rybak_2021_ApJ_909_130.pdf | PDF editoriale | 1.64 MB | Adobe PDF | Visualizza/apri |
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