Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/27947
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Dias, Bruno | en_US |
dc.contributor.author | Barbuy, Beatriz | en_US |
dc.contributor.author | Saviane, Ivo | en_US |
dc.contributor.author | HELD, Enrico Valerio | en_US |
dc.contributor.author | da Costa, Gary | en_US |
dc.contributor.author | Ortolani, Sergio | en_US |
dc.contributor.author | GULLIEUSZIK, MARCO | en_US |
dc.date.accessioned | 2020-10-23T10:17:15Z | - |
dc.date.available | 2020-10-23T10:17:15Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.isbn | 978-1-107-19234-8 | en_US |
dc.identifier.issn | 1743-9213 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27947 | - |
dc.description.abstract | Milky Way globular clusters are excellent laboratories for stellar population detailed analysis that can be applied to extragalactic environments with the advent of the 40m-class telescopes like the ELT. The globular cluster population traces the early evolution of the Milky Way which is the field of Galactic archaeology. We present our GlObular clusTer Homogeneous Abundance Measurement (GOTHAM) survey. We derived radial velocities, Teff, log(g), [Fe/H], [Mg/Fe] for red giant stars in one third of all Galactic globular clusters that represent well the Milky Way globular cluster system in terms of metallicity, mass, reddening, and distance. Our method is based on low-resolution spectroscopy and is intrinsically reddening free and efficient even for faint stars. Our [Fe/H] determinations agree with high-resolution results to within 0.08 dex. The GOTHAM survey provides a new metallicity scale for Galactic globular clusters with a significant update of metallicities higher than [Fe/H] > -0.7. We show that the trend of [Mg/Fe] with metallicity is not constant as previously found, because now we have more metal-rich clusters. Moreover, peculiar clusters whose [Mg/Fe] does not match Galactic stars for a given metallicity are discussed. We also measured the CaII triplet index for all stars and we show that the different chemical evolution of Milky Way open clusters, field stars, and globular clusters implies different calibrations of calcium triplet to metallicity. | en_US |
dc.language.iso | eng | en_US |
dc.title | The GOTHAM survey: chemical evolution of Milky Way globular clusters | en_US |
dc.type | Conference paper | - |
dc.identifier.doi | 10.1017/S1743921317007086 | en_US |
dc.identifier.scopus | 2-s2.0-85060110739 | en_US |
dc.identifier.url | https://www.cambridge.org/core/journals/proceedings-of-the-international-astronomical-union/article/gotham-survey-chemical-evolution-of-milky-way-globular-clusters/B84D7FAC7469EF30230F6A3F980079CB# | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | vol. 13, S334 | en_US |
dc.relation.firstpage | 25 | en_US |
dc.relation.lastpage | 28 | en_US |
dc.relation.numberofpages | 4 | en_US |
dc.type.referee | REF_0 | en_US |
dc.description.numberofauthors | 7 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | AUS | en_US |
dc.contributor.country | BRA | en_US |
dc.contributor.country | CHL | en_US |
dc.relation.alleditors | Chiappini, C.; Minchev, I.; Starkenburg, E.; Valentini, M. | en_US |
dc.relation.ispartofbook | Rediscovering Our Galaxy | en_US |
dc.type.invited | no | en_US |
dc.relation.conferencename | Rediscovering our Galaxy | en_US |
dc.relation.conferenceplace | Potsdam, Germany | en_US |
dc.relation.conferencedate | 10-14 July, 2017 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.type.miur | 273 Contributo in Atti di convegno | - |
dc.relation.series | PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION | en_US |
dc.identifier.adsbibcode | 2018IAUS..334...25D | 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 | Conference paper | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.orcid | 0000-0002-4609-3463 | - |
crisitem.author.orcid | 0000-0002-7296-9780 | - |
crisitem.journal.journalissn | 1743-9213 | - |
crisitem.journal.ance | E192651 | - |
Appears in Collections: | 3.01 Contributi in Atti di convegno |
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File | Description | Size | Format | |
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gotham_survey_chemical_evolution_of_milky_way_globular_clusters.pdf | PDF editoriale | 405.42 kB | Adobe PDF | View/Open |
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