{"id":"https://openalex.org/W7213350205","doi":"https://doi.org/10.48550/arxiv.2609.14901","title":"Tracing Stellar Populations through the Mg-Al Anti-Correlation in Gaia-ESO Globular Clusters","display_name":"Tracing Stellar Populations through the Mg-Al Anti-Correlation in Gaia-ESO Globular Clusters","publication_year":2026,"publication_date":"2026-09-14","ids":{"openalex":"https://openalex.org/W7213350205","doi":"https://doi.org/10.48550/arxiv.2609.14901"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2609.14901","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.14901","pdf_url":"https://arxiv.org/pdf/2609.14901","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["arxiv","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2609.14901","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5139556806","display_name":"H. Sinclair-Wentworth","orcid":"https://orcid.org/0009-0007-3837-0313","observed_orcids":["https://orcid.org/0009-0007-3837-0313"]},"institutions":[{"id":"https://openalex.org/I185492890","display_name":"University of Canterbury","ror":"https://ror.org/03y7q9t39","country_code":"NZ","type":"education","lineage":["https://openalex.org/I185492890"]}],"countries":["NZ"],"is_corresponding":false,"raw_author_name":"Sinclair-Wentworth, H.","raw_affiliation_strings":["School of Physical and Chemical Sciences -Te Kura Mat\u016b , University of Canterbury , New Zealand"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Physical and Chemical Sciences -Te Kura Mat\u016b , University of Canterbury , New Zealand","institution_ids":["https://openalex.org/I185492890"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089972304","display_name":"C. C. Worley","orcid":"https://orcid.org/0000-0001-9310-2898","observed_orcids":["https://orcid.org/0000-0001-9310-2898"]},"institutions":[{"id":"https://openalex.org/I185492890","display_name":"University of Canterbury","ror":"https://ror.org/03y7q9t39","country_code":"NZ","type":"education","lineage":["https://openalex.org/I185492890"]}],"countries":["NZ"],"is_corresponding":false,"raw_author_name":"Worley, C. C.","raw_affiliation_strings":["School of Physical and Chemical Sciences -Te Kura Mat\u016b , University of Canterbury , New Zealand"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Physical and Chemical Sciences -Te Kura Mat\u016b , University of Canterbury , New Zealand","institution_ids":["https://openalex.org/I185492890"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031945322","display_name":"P. Jofr\u00e9","orcid":"https://orcid.org/0000-0002-0722-7406","observed_orcids":["https://orcid.org/0000-0002-0722-7406"]},"institutions":[{"id":"https://openalex.org/I911713783","display_name":"Universidad Diego Portales","ror":"https://ror.org/03gtdcg60","country_code":"CL","type":"education","lineage":["https://openalex.org/I911713783"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Jofre, P.","raw_affiliation_strings":["Instituto de Estudios Astrof\u00edsicos , Facultad de Ingenier\u00eda y Ciencias , Universidad Diego Portales , Ej\u00e9rcito Libertador 441 , Santiago , Chile"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Instituto de Estudios Astrof\u00edsicos , Facultad de Ingenier\u00eda y Ciencias , Universidad Diego Portales , Ej\u00e9rcito Libertador 441 , Santiago , Chile","institution_ids":["https://openalex.org/I911713783"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005894881","display_name":"J. Schiappacasse-Ulloa","orcid":"https://orcid.org/0000-0002-2179-9363","observed_orcids":["https://orcid.org/0000-0002-2179-9363"]},"institutions":[{"id":"https://openalex.org/I2799986158","display_name":"Arcetri Astrophysical Observatory","ror":"https://ror.org/00fbze943","country_code":"IT","type":"facility","lineage":["https://openalex.org/I2799986158","https://openalex.org/I875825670"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Schiappacasse-Ulloa, J.","raw_affiliation_strings":["INAF-Osservatorio Astrofisico di Arcetri , Largo Enrico Fermi 5 , 50125 Florence , Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"INAF-Osservatorio Astrofisico di Arcetri , Largo Enrico Fermi 5 , 50125 Florence , Italy","institution_ids":["https://openalex.org/I2799986158"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5024946777","display_name":"Laura Magrini","orcid":"https://orcid.org/0000-0003-4486-6802","observed_orcids":["https://orcid.org/0000-0003-4486-6802"]},"institutions":[{"id":"https://openalex.org/I2799986158","display_name":"Arcetri Astrophysical Observatory","ror":"https://ror.org/00fbze943","country_code":"IT","type":"facility","lineage":["https://openalex.org/I2799986158","https://openalex.org/I875825670"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Magrini, L.","raw_affiliation_strings":["INAF-Osservatorio Astrofisico di Arcetri , Largo Enrico Fermi 5 , 50125 Florence , Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"INAF-Osservatorio Astrofisico di Arcetri , Largo Enrico Fermi 5 , 50125 Florence , Italy","institution_ids":["https://openalex.org/I2799986158"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10039","display_name":"Stellar, planetary, and galactic studies","score":0.9937000274658203,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10039","display_name":"Stellar, planetary, and galactic studies","score":0.9937000274658203,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10026","display_name":"Galaxies: Formation, Evolution, Phenomena","score":0.002899999963119626,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12917","display_name":"Astronomy and Astrophysical Research","score":0.0005000000237487257,"subfield":{"id":"https://openalex.org/subfields/3105","display_name":"Instrumentation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/globular-clusters","display_name":"globular clusters","score":0.9950000047683716},{"id":"https://openalex.org/keywords/multiple-stellar-populations","display_name":"multiple stellar populations","score":0.9629999995231628},{"id":"https://openalex.org/keywords/chemical-abundances","display_name":"chemical abundances","score":0.6579999923706055},{"id":"https://openalex.org/keywords/cluster-metallicity","display_name":"cluster metallicity","score":0.4959999918937683},{"id":"https://openalex.org/keywords/s-process-abundances","display_name":"s-process abundances","score":0.6930000185966492},{"id":"https://openalex.org/keywords/cluster-mass","display_name":"cluster mass","score":0.5920000076293945},{"id":"https://openalex.org/keywords/ngc-2808","display_name":"NGC 2808","score":0.8949999809265137},{"id":"https://openalex.org/keywords/ngc-6752","display_name":"NGC 6752","score":0.9789999723434448},{"id":"https://openalex.org/keywords/ngc-7078","display_name":"NGC 7078","score":0.9729999899864197},{"id":"https://openalex.org/keywords/ngc-1851","display_name":"NGC 1851","score":0.9990000128746033}],"concepts":[{"id":"https://openalex.org/C113461152","wikidata":"https://www.wikidata.org/wiki/Q11276","display_name":"Globular cluster","level":3,"score":0.8762999773025513},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.7534999847412109},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.6669999957084656},{"id":"https://openalex.org/C99465377","wikidata":"https://www.wikidata.org/wiki/Q217030","display_name":"Metallicity","level":3,"score":0.657800018787384},{"id":"https://openalex.org/C555520305","wikidata":"https://www.wikidata.org/wiki/Q321","display_name":"Milky Way","level":3,"score":0.5361999869346619},{"id":"https://openalex.org/C164866538","wikidata":"https://www.wikidata.org/wiki/Q367351","display_name":"Cluster (spacecraft)","level":2,"score":0.5153999924659729},{"id":"https://openalex.org/C77077793","wikidata":"https://www.wikidata.org/wiki/Q336019","display_name":"Abundance (ecology)","level":2,"score":0.4458000063896179},{"id":"https://openalex.org/C66882249","wikidata":"https://www.wikidata.org/wiki/Q169336","display_name":"Homogeneous","level":2,"score":0.42260000109672546},{"id":"https://openalex.org/C138673069","wikidata":"https://www.wikidata.org/wiki/Q322229","display_name":"Tracing","level":2,"score":0.39590001106262207},{"id":"https://openalex.org/C48393594","wikidata":"https://www.wikidata.org/wiki/Q168845","display_name":"Star cluster","level":3,"score":0.3874000012874603},{"id":"https://openalex.org/C2778623024","wikidata":"https://www.wikidata.org/wiki/Q1436016","display_name":"Stellar population","level":4,"score":0.3790999948978424},{"id":"https://openalex.org/C4839761","wikidata":"https://www.wikidata.org/wiki/Q212111","display_name":"Spectral line","level":2,"score":0.37059998512268066},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.3465999960899353},{"id":"https://openalex.org/C2994569158","wikidata":"https://www.wikidata.org/wiki/Q5090465","display_name":"Chemical evolution","level":3,"score":0.3343999981880188},{"id":"https://openalex.org/C57687973","wikidata":"https://www.wikidata.org/wiki/Q899336","display_name":"Chemical species","level":2,"score":0.33410000801086426},{"id":"https://openalex.org/C98444146","wikidata":"https://www.wikidata.org/wiki/Q318","display_name":"Galaxy","level":2,"score":0.31859999895095825},{"id":"https://openalex.org/C174802034","wikidata":"https://www.wikidata.org/wiki/Q1995140","display_name":"Galaxy formation and evolution","level":3,"score":0.302700012922287},{"id":"https://openalex.org/C110472602","wikidata":"https://www.wikidata.org/wiki/Q6472","display_name":"Stellar evolution","level":3,"score":0.301800012588501},{"id":"https://openalex.org/C168589115","wikidata":"https://www.wikidata.org/wiki/Q3079618","display_name":"Stellar mass","level":4,"score":0.2883000075817108}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2609.14901","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.14901","pdf_url":"https://arxiv.org/pdf/2609.14901","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"doi:10.48550/arxiv.2609.14901","doi":"https://doi.org/10.48550/arxiv.2609.14901","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2609.14901","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2609.14901","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.14901","pdf_url":"https://arxiv.org/pdf/2609.14901","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320320300","display_name":"European Commission","ror":"https://ror.org/00k4n6c32"},{"id":"https://openalex.org/F4320325918","display_name":"Pontificia Universidad Cat\u00f3lica de Chile","ror":"https://ror.org/04teye511"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7213350205.pdf","grobid_xml":"https://content.openalex.org/works/W7213350205.grobid-xml"},"referenced_works_count":2,"referenced_works":["https://openalex.org/W2807240661","https://openalex.org/W7168161677"],"related_works":["https://openalex.org/W4299436987","https://openalex.org/W6964575461","https://openalex.org/W2996133651","https://openalex.org/W2529748947","https://openalex.org/W2780841981","https://openalex.org/W4396592965","https://openalex.org/W3104134168","https://openalex.org/W3099718487","https://openalex.org/W2949199948","https://openalex.org/W4409324392"],"abstract_inverted_index":{"Context.":[0],"Globular":[1],"clusters":[2,125,203],"(GCs)":[3],"are":[4,41],"fragments":[5],"of":[6,12,34,53,63,129,157,188,228,240],"the":[7,13,32,51,54,68,77,82,108,119,127,147,189,205,226,237,243],"chemical":[8,26,94,238],"history":[9],"and":[10,28,37,98,132,171,186,196,221,242],"evolution":[11],"Milky":[14],"Way.":[15],"Their":[16],"notable":[17],"intra-cluster":[18],"abundance":[19],"variations":[20,173],"have":[21],"been":[22],"used":[23],"to":[24,49,58,80,90,107,114,249],"characterise":[25],"trends":[27],"stellar":[29,55,230],"populations.":[30,83,122,134],"However,":[31],"origins":[33],"these":[35],"populations":[36,56,231],"GCs":[38,60,241],"in":[39],"general":[40],"still":[42],"largely":[43],"unknown.":[44],"Aims.":[45],"Our":[46],"aim":[47],"is":[48,138],"explore":[50],"origin":[52],"belonging":[57],"14":[59],"making":[61],"use":[62,76],"their":[64,158,251],"abundances":[65,95,212],"derived":[66],"from":[67,217],"Gaia-ESO":[69,218],"Survey":[70,219],"(GES)":[71],"spectra.":[72],"In":[73],"particular,":[74],"we":[75],"Mg-Al":[78,130,148,159,190],"anti-correlation":[79,149,191],"separate":[81],"Methods.":[84],"The":[85,184],"GES":[86],"spectra":[87,220],"were":[88],"revisited":[89],"derive":[91],"additional":[92,211],"homogenous":[93],"for":[96,111,245],"Mg":[97],"Al.":[99],"A":[100],"Gaussian":[101],"Mixture":[102],"Model":[103],"(GMM)":[104],"was":[105],"applied":[106],"[Mg/Al]":[109],"distribution":[110],"each":[112],"cluster":[113,194],"define":[115],"a":[116,139],"threshold":[117],"between":[118],"two":[120],"main":[121],"Results.":[123],"Eight":[124],"imply":[126],"presence":[128,185],"anti-correlations":[131],"dual":[133],"We":[135],"find":[136],"there":[137],"regime":[140],"transition":[141],"near":[142],"[Fe/H]":[143],"approximately":[144],"-1.4,":[145],"where,":[146],"disappears":[150],"at":[151],"higher":[152],"metallicity.":[153],"Several":[154],"clusters,":[155],"regardless":[156],"anti-":[160],"correlation":[161],"behaviour,":[162],"exhibit":[163],"metallicity":[164],"spreads":[165],"(e.g.,":[166,174],"NGC":[167,169,175,177],"2808,":[168],"6752)":[170],"s-process":[172],"7078,":[176],"1851),":[178],"suggesting":[179],"complex":[180],"enrichment":[181],"histories.":[182,253],"Conclusions.":[183],"spread":[187],"depend":[192],"on":[193],"mass":[195],"metallicity,":[197],"with":[198],"metal":[199],"poor":[200],"and/or":[201],"massive":[202],"exhibiting":[204],"clearest":[206],"anti-correlation.":[207],"This":[208],"work":[209],"demonstrates":[210],"that":[213],"can":[214],"be":[215],"retrieved":[216],"provides":[222],"further":[223],"insight":[224],"into":[225],"chemistry":[227],"multiple":[229],"within":[232],"GCs.":[233],"These":[234],"findings":[235],"highlight":[236],"complexity":[239],"need":[244],"large,":[246],"homogeneous":[247],"datasets":[248],"trace":[250],"formation":[252]},"counts_by_year":[],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2026-09-16T00:00:00"}
