Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28115
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Dell'Agli, Flavia | en_US |
dc.contributor.author | D. A. García-Hernández | en_US |
dc.contributor.author | VENTURA, Paolo | en_US |
dc.contributor.author | SCHNEIDER, RAFFAELLA | en_US |
dc.contributor.author | DI CRISCIENZO, Marcella | en_US |
dc.contributor.author | C. Rossi | en_US |
dc.date.accessioned | 2020-11-02T13:52:19Z | - |
dc.date.available | 2020-11-02T13:52:19Z | - |
dc.date.issued | 2015 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28115 | - |
dc.description.abstract | We study the population of asymptotic giant branch (AGB) stars in the Small Magellanic Cloud (SMC) by means of full evolutionary models of stars of mass 1Msun < M < 8Msun, evolved through the thermally pulsing phase. The models also account for dust production in the circumstellar envelope. We compare Spitzer infrared colours with results from theoretical modelling. We show that ~75% of the AGB population of the SMC is composed by scarcely obscured objects, mainly stars of mass M < 2.5Msun at various metallicity, formed between 700 Myr and 5 Gyr ago; ~ 70% of these sources are oxygen--rich stars, while ~ 30% are C-stars. The sample of the most obscured AGB stars, accounting for ~ 25% of the total sample, is composed almost entirely by carbon stars. The distribution in the colour-colour ([3.6]-[4.5], [5.8]-[8.0]) and colour-magnitude ([3.6]-[8.0], [8.0]) diagrams of these C-rich objects, with a large infrared emission, traces an obscuration sequence, according to the amount of carbonaceous dust in their surroundings. The overall population of C-rich AGB stars descends from 1.5-2Msun stars of metallicity Z=0.004, formed between 700 Myr and 2 Gyr ago, and from lower metallicity objects, of mass below 1.5Msun, 2-5 Gyr old. We also identify obscured oxygen-rich stars (M ~ 4-6Msun) experiencing hot bottom burning. The differences between the AGB populations of the SMC and LMC are also commented. | en_US |
dc.language.iso | eng | en_US |
dc.title | AGB stars in the SMC: evolution and dust properties based on Spitzer observations | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stv2298 | en_US |
dc.identifier.scopus | 2-s2.0-84949256270 | en_US |
dc.identifier.isi | 000368001600069 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/454/4/4235/1004057 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 454 | en_US |
dc.relation.issue | 4 | en_US |
dc.relation.firstpage | 4235 | en_US |
dc.relation.lastpage | 4249 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 6 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | ESP | 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.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_6 Stars and stellar systems | 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. Roma | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.orcid | 0000-0003-2442-6981 | - |
crisitem.author.orcid | 0000-0002-5026-6400 | - |
crisitem.author.orcid | 0000-0001-9317-2888 | - |
crisitem.author.orcid | 0000-0003-4132-1209 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
stv2298.pdf | PDF editoriale | 3.09 MB | Adobe PDF | View/Open |
1510.01230.pdf | 7.76 MB | Adobe PDF | View/Open |
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