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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/24261
DC FieldValueLanguage
dc.contributor.authorMUSELLA, ILARIAen_US
dc.contributor.authorMARCONI, Marcellaen_US
dc.contributor.authorStetson, P. B.en_US
dc.contributor.authorRAIMONDO, Gabriellaen_US
dc.contributor.authorBROCATO, Enzoen_US
dc.contributor.authorMOLINARO, Robertoen_US
dc.contributor.authorRIPEPI, Vincenzoen_US
dc.contributor.authorCARINI, Robertaen_US
dc.contributor.authorCoppola, G.en_US
dc.contributor.authorWalker, A. R.en_US
dc.contributor.authorWelch, D. L.en_US
dc.date.accessioned2020-04-28T08:06:28Z-
dc.date.available2020-04-28T08:06:28Z-
dc.date.issued2016en_US
dc.identifier.issn0035-8711en_US
dc.identifier.urihttp://hdl.handle.net/20.500.12386/24261-
dc.description.abstractWe present the analysis of multiband time series data for a sample of 24 Cepheids in the field of the Large Magellanic Cloud cluster NGC 1866. Very accurate BVI Very Large Telescope photometry is combined with archival UBVI data, covering a large temporal window, to obtain precise mean magnitudes and periods with typical errors of 1-2 per cent and of 1 ppm, respectively. These results represent the first accurate and homogeneous data set for a substantial sample of Cepheid variables belonging to a cluster and hence sharing common distance, age and original chemical composition. Comparisons of the resulting multiband period-luminosity and Wesenheit relations to both empirical and theoretical results for the Large Magellanic Cloud are presented and discussed to derive the distance of the cluster and to constrain the mass-luminosity relation of the Cepheids. The adopted theoretical scenario is also tested by comparison with independent calibrations of the Cepheid Wesenheit zero-point based on trigonometric parallaxes and Baade-Wesselink techniques. Our analysis suggests that a mild overshooting and/or a moderate mass-loss can affect intermediate-mass stellar evolution in this cluster and gives a distance modulus of 18.50 ± 0.01 mag. The obtained V,I colour-magnitude diagram is also analysed and compared with both synthetic models and theoretical isochrones for a range of ages and metallicities and for different efficiencies of core overshooting. As a result, we find that the age of NGC 1866 is about 140 Myr, assuming Z = 0.008 and the mild efficiency of overshooting suggested by the comparison with the pulsation models.en_US
dc.language.isoengen_US
dc.titleThe Cepheids of NGC 1866: a precise benchmark for the extragalactic distance scale and stellar evolution from modern UBVI photometryen_US
dc.typeArticle-
dc.identifier.doi10.1093/mnras/stw151en_US
dc.identifier.scopus2-s2.0-84976863865en_US
dc.identifier.isi000373583900061en_US
dc.identifier.urlhttps://academic.oup.com/mnras/article/457/3/3084/2588935en_US
dc.identifier.urlhttps://arxiv.org/pdf/1601.06628.pdfen_US
dc.relation.mediumSTAMPAen_US
dc.relation.volume457en_US
dc.relation.issue3en_US
dc.relation.firstpage3084en_US
dc.type.refereeREF_1en_US
dc.description.internationalsìen_US
dc.relation.scientificsectorFIS/05 - ASTRONOMIA E ASTROFISICAen_US
dc.relation.journalMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETYen_US
dc.type.miur262 Articolo in rivista-
dc.identifier.adsbibcode2016MNRAS.457.3084Men_US
dc.relation.ercsectorScienze Fisiche Settori ERC (ERC) di riferimento::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentationen_US
dc.description.apcnoen_US
dc.description.oa1 – prodotto con file in versione Open Access (allegherò il file al passo  5-Carica)en_US
item.grantfulltextopen-
item.languageiso639-1en-
item.openairetypeArticle-
item.cerifentitytypePublications-
item.fulltextWith Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
crisitem.author.deptO.A. Capodimonte-
crisitem.author.deptO.A. Capodimonte-
crisitem.author.deptO.A. Abruzzo-
crisitem.author.deptO.A. Abruzzo-
crisitem.author.deptO.A. Capodimonte-
crisitem.author.deptO.A. Capodimonte-
crisitem.author.deptO.A. Roma-
crisitem.author.orcid0000-0001-5909-6615-
crisitem.author.orcid0000-0002-1330-2927-
crisitem.author.orcid0000-0002-5577-7023-
crisitem.author.orcid0000-0001-7988-8177-
crisitem.author.orcid0000-0003-3055-6002-
crisitem.author.orcid0000-0003-1801-426X-
crisitem.author.orcid0000-0003-1604-2064-
crisitem.journal.journalissn0035-8711-
crisitem.journal.anceE112946-
Appears in Collections:1.01 Articoli in rivista
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