Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/30451
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Alison Sills | en_US |
dc.contributor.author | Dalessandro, E. | en_US |
dc.contributor.author | Mario Cadelano | en_US |
dc.contributor.author | Mayte Alfaro-Cuello | en_US |
dc.contributor.author | J. M. Diederik Kruijssen | en_US |
dc.date.accessioned | 2021-02-18T11:28:25Z | - |
dc.date.available | 2021-02-18T11:28:25Z | - |
dc.date.issued | 2019 | en_US |
dc.identifier.issn | 1745-3925 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30451 | - |
dc.description.abstract | The cluster M54 lies at the centre of the Sagittarius dwarf spheroidal galaxy, and therefore may be the closest example of a nuclear star cluster. Either in-situ star formation, inspiralling globular clusters, or a combination have been invoked to explain the wide variety of stellar sub-populations in nuclear star clusters. Globular clusters are known to exhibit light element variations, which can be identified using the photometric construct called a chromosome map. In this letter, we create chromosome maps for three distinct age-metallicity sub-populations in the vicinity of M54. We find that the old, metal-poor population shows the signature of light element variations, while the young and intermediate-age metal rich populations do not. We conclude that the nucleus of Sagittarius formed through a combination of in-situ star formation and globular cluster accretion. This letter demonstrates that properly constructed chromosome maps of iron-complex globular clusters can provide insight into the formation locations of the different stellar populations. | en_US |
dc.language.iso | eng | en_US |
dc.title | Light element variations within the different age-metallicity populations in the nucleus of the Sagittarius dwarf | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnrasl/slz149 | en_US |
dc.identifier.scopus | 2-s2.0-85084306104 | en_US |
dc.identifier.isi | 000516532900014 | en_US |
dc.identifier.url | http://arxiv.org/abs/1910.00080v1 | en_US |
dc.identifier.url | https://academic.oup.com/mnrasl/article-abstract/490/1/L67/5580282?redirectedFrom=fulltext | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 490 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | L67 | en_US |
dc.relation.lastpage | L70 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | DEU | en_US |
dc.contributor.country | CAN | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. LETTERS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2019MNRAS.490L..67S | 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 | 1745-3925 | - |
crisitem.journal.ance | E205843 | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0003-4237-4601 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
1910.00080.pdf | preprint | 834.83 kB | Adobe PDF | View/Open |
slz149.pdf | Pdf editoriale | 3.89 MB | Adobe PDF | View/Open |
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