Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/23818
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kunder, A. | en_US |
dc.contributor.author | Salaris, M. | en_US |
dc.contributor.author | CASSISI, Santi | en_US |
dc.contributor.author | de Propris, R. | en_US |
dc.contributor.author | Walker, A. | en_US |
dc.contributor.author | Stetson, P. B. | en_US |
dc.contributor.author | Catelan, M. | en_US |
dc.contributor.author | Amigo, P. | en_US |
dc.date.accessioned | 2020-04-03T10:58:55Z | - |
dc.date.available | 2020-04-03T10:58:55Z | - |
dc.date.issued | 2015 | en_US |
dc.identifier.issn | 0037-8720 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/23818 | - |
dc.description.abstract | The RR Lyrae instability strip (IS) in NGC 1851 is investigated, and a model is presented which reproduces the pulsational properties of the RR Lyrae population. In our model, a stellar component within the IS that displays minor helium variations (Ỹ0.248-0.270) is able to reproduce the observed periods and amplitudes of the RR Lyrae variables, as well as the frequency of fundamental and first-overtone RR Lyrae variables. The RR Lyrae variables therefore may belong to an He-enriched second generation of stars. The RR Lyrae variables with a slightly enhanced helium (Ỹ0.270-0.280) have longer periods at a given amplitude, as is seen with Oosterhoff II (OoII) RR Lyrae variables, whereas the RR Lyrae variables with Ỹ0.248-0.270 have shorter periods, exhibiting properties of Oosterhoff I (OoI) variables. | en_US |
dc.language.iso | eng | en_US |
dc.title | Theoretical modeling of the RR Lyrae variables in NGC 1851 | en_US |
dc.type | Article | - |
dc.identifier.url | http://sait.oat.ts.astro.it/MSAIt860215/index.html | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 86 | en_US |
dc.relation.firstpage | 199 | en_US |
dc.type.referee | REF_0 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | USA | en_US |
dc.contributor.country | GBR | 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 | 2015MmSAI..86..199K | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegherò 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. Abruzzo | - |
crisitem.author.orcid | 0000-0001-5870-3735 | - |
crisitem.journal.journalissn | 0037-8720 | - |
crisitem.journal.ance | E108779 | - |
Appears in Collections: | 1.01 Articoli in rivista |
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