Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/30753
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | INNO, LAURA | en_US |
dc.contributor.author | Bono, G. | en_US |
dc.contributor.author | Matsunaga, N. | en_US |
dc.contributor.author | FIORENTINO, Giuliana | en_US |
dc.contributor.author | MARCONI, Marcella | en_US |
dc.contributor.author | Lemasle, B. | en_US |
dc.contributor.author | Silva, R. da | en_US |
dc.contributor.author | Soszyński, I. | en_US |
dc.contributor.author | Udalski, A. | en_US |
dc.contributor.author | Romaniello, M. | en_US |
dc.contributor.author | Rix, H.-W. | en_US |
dc.date.accessioned | 2021-04-14T16:23:24Z | - |
dc.date.available | 2021-04-14T16:23:24Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30753 | - |
dc.description.abstract | We present a detailed investigation of the Large Magellanic Cloud (LMC) disk using classical Cepheids. Our analysis is based on optical (I, V OGLE-IV), near-infrared (NIR: J, H, {K}{{S}}) and mid-infrared (MIR: w1; WISE) mean magnitudes. By adopting new templates to estimate the NIR mean magnitudes from single-epoch measurements, we build the currently most accurate, largest, and homogeneous multi-band data set of LMC Cepheids. We determine Cepheid individual distances using optical and NIR Period-Wesenheit relations (PWRs), to measure the geometry of the LMC disk and its viewing angles. Cepheid distances based on optical PWRs are precise at 3%, but accurate to 7%, while the ones based on NIR PWRs are more accurate (to 3%), but less precise (2%-15%), given the higher photometric error on the observed magnitudes. We found an inclination of I = 25.05 ± 0.02 (stat.) ± 0.55 (syst.) deg, and a position angle of the lines of nodes P.A. = 150.76 ± 0.02 (stat.) ± 0.07 (syst.) deg. These values agree well with estimates based either on young (Red Supergiants) or on intermediate-age (Asymptotic Giant Branch, Red Clump) stellar tracers, but they significantly differ from evaluations based on old (RR Lyrae) stellar tracers. This indicates that young/intermediate and old stellar populations have different spatial distributions. Finally, by using the reddening-law fitting approach, we provide a reddening map of the LMC disk, which is 10 times more accurate and 2 times larger than similar maps in the literature. We also found an LMC true distance modulus of {μ }0,{LMC}=18.48+/- 0.10 (stat. and syst.) mag, in excellent agreement with the currently most accurate measurement. | en_US |
dc.language.iso | eng | en_US |
dc.title | THE PANCHROMATIC VIEW OF THE MAGELLANIC CLOUDS FROM CLASSICAL CEPHEIDS. I. DISTANCE, REDDENING, AND GEOMETRY OF THE LARGE MAGELLANIC CLOUD DISK | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/0004-637X/832/2/176 | en_US |
dc.identifier.scopus | 2-s2.0-85004091945 | en_US |
dc.identifier.isi | 000390490100036 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/0004-637X/832/2/176 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 832 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 176 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016ApJ...832..176I | en_US |
dc.description.apc | sì | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairetype | Article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.orcid | 0000-0002-0271-2664 | - |
crisitem.author.orcid | 0000-0003-0376-6928 | - |
crisitem.author.orcid | 0000-0002-1330-2927 | - |
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