Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/27232
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sugimura, K. | en_US |
dc.contributor.author | Coppola, C. M. | en_US |
dc.contributor.author | Omukai, K. | en_US |
dc.contributor.author | GALLI, Daniele | en_US |
dc.contributor.author | Palla, F. | en_US |
dc.date.accessioned | 2020-09-09T07:11:52Z | - |
dc.date.available | 2020-09-09T07:11:52Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0037-8720 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27232 | - |
dc.description.abstract | The remnant black holes (BHs) of supermassive stars formed at z > 10 are promising candidates of the seeds for supermassive BHs. They are thought to form in pristine atomic cooling halos in which H_2 cooling is totally suppressed by strong external radiation. Here, we obtain the critical FUV specific intensity J21(cr) (in units of 10-21 erg s-1 Hz-1 sr-1 cm-2) required for supermassive star formation, with non-local thermodynamic equilibrium (non-LTE) primordial-gas chemistry. We consider the non-LTE chemistry with the vibrationally resolved H_2+ kinetics, as well as realistic radiation spectra of galaxies. We find that while the effect of non-LTE H_2+ chemistry is important for soft radiation sources, it is negligible and J21(cr) ∼ 1000 for the hard spectra of young and metal-poor galaxies, considered as typical radiation sources in the early Universe. | en_US |
dc.language.iso | eng | en_US |
dc.title | Supermassive star formation with non-LTE primordial-gas chemistry | en_US |
dc.type | Article | - |
dc.identifier.url | http://sait.oat.ts.astro.it/MmSAI/88/PDF/860.pdf | en_US |
dc.identifier.url | http://sait.oat.ts.astro.it/MSAIt880417/index.html | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 88 | en_US |
dc.relation.firstpage | 860 | en_US |
dc.relation.lastpage | 861 | en_US |
dc.relation.numberofpages | 2 | en_US |
dc.type.referee | REF_0 | en_US |
dc.description.numberofauthors | 5 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | JPN | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MEMORIE DELLA SOCIETA ASTRONOMICA ITALIANA | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2017MmSAI..88..860S | 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. Arcetri | - |
crisitem.author.orcid | 0000-0001-7706-6049 | - |
crisitem.journal.journalissn | 0037-8720 | - |
crisitem.journal.ance | E108779 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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sugimura_2017.pdf | Pdf editoriale | 480.63 kB | Adobe PDF | View/Open |
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