Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/26228
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Saracino, S. | en_US |
dc.contributor.author | Dalessandro, Emanuele | en_US |
dc.contributor.author | Ferraro, F. R. | en_US |
dc.contributor.author | Geisler, D. | en_US |
dc.contributor.author | Mauro, F. | en_US |
dc.contributor.author | Lanzoni, B. | en_US |
dc.contributor.author | ORIGLIA, Livia | en_US |
dc.contributor.author | Miocchi, P. | en_US |
dc.contributor.author | Cohen, R. E. | en_US |
dc.contributor.author | Villanova, S. | en_US |
dc.contributor.author | Moni Bidin, C. | en_US |
dc.date.accessioned | 2020-06-26T10:49:23Z | - |
dc.date.available | 2020-06-26T10:49:23Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26228 | - |
dc.description.abstract | We used ultra-deep J and K <SUB> s </SUB> images secured with the near-infrared (NIR) GSAOI camera assisted by the multi-conjugate adaptive optics system GeMS at the GEMINI South Telescope in Chile, to obtain a (K <SUB> s </SUB>, J - K <SUB> s </SUB>) color-magnitude diagram (CMD) for the bulge globular cluster NGC 6624. We obtained the deepest and most accurate NIR CMD from the ground for this cluster, by reaching K <SUB> s </SUB> ∼ 21.5, approximately 8 mag below the horizontal branch level. The entire extension of the Main Sequence (MS) is nicely sampled and at K <SUB> s </SUB> ∼ 20 we detected the so-called MS “knee” in a purely NIR CMD. By taking advantage of the exquisite quality of the data, we estimated the absolute age of NGC 6624 (t <SUB>age</SUB> = 12.0 ± 0.5 Gyr), which turns out to be in good agreement with previous studies in the literature. We also analyzed the luminosity and mass functions of MS stars down to M ∼ 0.45 M<SUB>☉</SUB>, finding evidence of a significant increase of low-mass stars at increasing distances from the cluster center. This is a clear signature of mass segregation, confirming that NGC 6624 is in an advanced stage of dynamical evolution. <P />Based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), Ministério da Ciência, Tecnologia e Inovação (Brazil) and Ministerio de Ciencia, Tecnología e Innovación Productiva (Argentina). Based on observations gathered with ESO-VISTA telescope (program ID 179.B-2002). | en_US |
dc.language.iso | eng | en_US |
dc.title | Ultra-deep GEMINI Near-infrared Observations of the Bulge Globular Cluster NGC 6624 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/0004-637X/832/1/48 | en_US |
dc.identifier.scopus | 2-s2.0-84996558265 | en_US |
dc.identifier.isi | 000400476100011 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/0004-637X/832/1/48 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 832 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 48 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | CHL | 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...48S | 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.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0003-4237-4601 | - |
crisitem.author.orcid | 0000-0002-6040-5849 | - |
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