Trials and Tribulations of Chemodynamical Tagging: Investigating the Recovery of Open Clusters in the Gaia Data Release 3 and GALAH Data Release 4 Catalogs
Chemodynamical tagging has been suggested as a powerful tool to trace stars back to their birth clusters. However, the efficacy of chemodynamical tagging as a means to recover individual stellar clusters is still under debate. In this study, we present a detailed investigation of chemodynamical tagg...
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2025-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/adccbc |
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| author | Nicholas A. Barth David Mendez Rana Ezzeddine Yuxi(Lucy) Lu Leslie M. Morales Zachary R. Claytor Jamie Tayar |
| author_facet | Nicholas A. Barth David Mendez Rana Ezzeddine Yuxi(Lucy) Lu Leslie M. Morales Zachary R. Claytor Jamie Tayar |
| author_sort | Nicholas A. Barth |
| collection | DOAJ |
| description | Chemodynamical tagging has been suggested as a powerful tool to trace stars back to their birth clusters. However, the efficacy of chemodynamical tagging as a means to recover individual stellar clusters is still under debate. In this study, we present a detailed investigation of chemodynamical tagging of open clusters using both dynamical and chemical data from the Gaia Data Release 3 and GALAH Data Release 4 surveys, respectively. Using a sample of open clusters and mock field stars, we conduct a bootstrap analysis to evaluate every unique combination of orbital components ( E , J _R , J _ϕ , J _Z ) and chemical abundances ([X/Fe] for O, Na, Mg, Al, Si, K, Ca, Sc, Ti, Cr, Mn, Ni, Cu, Y, and Ba) on how well they recover open clusters when used as parameters in the clustering algorithm HDBSCAN. We find that using primarily dynamical orbital parameters leads to the highest recovery rate of open cluster stars. Nevertheless, even employing the best performing parameter combinations leads to low open cluster recovery rates. We find that, in most cases, chemodynamical tagging of open clusters using blind clustering algorithms is not efficient, which is in line with previous theoretical and observational work. However, we show that the addition of cuts based on metallicity, age, and birth radius in order to reduce the size of the clustering catalog can marginally improve the recovery rate of open clusters. |
| format | Article |
| id | doaj-art-c52a0429a81d4a40986d901b66bae56e |
| institution | Kabale University |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
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| spelling | doaj-art-c52a0429a81d4a40986d901b66bae56e2025-08-20T03:48:07ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-01985112910.3847/1538-4357/adccbcTrials and Tribulations of Chemodynamical Tagging: Investigating the Recovery of Open Clusters in the Gaia Data Release 3 and GALAH Data Release 4 CatalogsNicholas A. Barth0https://orcid.org/0000-0003-0602-5287David Mendez1https://orcid.org/0000-0002-0057-3699Rana Ezzeddine2https://orcid.org/0000-0002-8504-8470Yuxi(Lucy) Lu3https://orcid.org/0000-0003-4769-3273Leslie M. Morales4https://orcid.org/0000-0002-1333-8866Zachary R. Claytor5https://orcid.org/0000-0002-9879-3904Jamie Tayar6https://orcid.org/0000-0002-4818-7885Department of Astronomy, University of Florida , 1772 Stadium Rd., Gainesville, FL 32611, USADepartment of Physics, University of Florida , P.O. Box 118440, Gainesville, FL 32611, USADepartment of Astronomy, University of Florida , 1772 Stadium Rd., Gainesville, FL 32611, USADepartment of Astronomy, The Ohio State University , 140 W. 18th Ave., Columbus, OH 43210, USA; Center for Cosmology and Astroparticle Physics (CCAPP), The Ohio State University , 191 W. Woodruff Ave., Columbus, OH 43210, USADepartment of Astronomy, University of Florida , 1772 Stadium Rd., Gainesville, FL 32611, USADepartment of Astronomy, University of Florida , 1772 Stadium Rd., Gainesville, FL 32611, USA; Space Telescope Science Institute , 3700 San Martin Dr., Baltimore, MD 21218, USADepartment of Astronomy, University of Florida , 1772 Stadium Rd., Gainesville, FL 32611, USAChemodynamical tagging has been suggested as a powerful tool to trace stars back to their birth clusters. However, the efficacy of chemodynamical tagging as a means to recover individual stellar clusters is still under debate. In this study, we present a detailed investigation of chemodynamical tagging of open clusters using both dynamical and chemical data from the Gaia Data Release 3 and GALAH Data Release 4 surveys, respectively. Using a sample of open clusters and mock field stars, we conduct a bootstrap analysis to evaluate every unique combination of orbital components ( E , J _R , J _ϕ , J _Z ) and chemical abundances ([X/Fe] for O, Na, Mg, Al, Si, K, Ca, Sc, Ti, Cr, Mn, Ni, Cu, Y, and Ba) on how well they recover open clusters when used as parameters in the clustering algorithm HDBSCAN. We find that using primarily dynamical orbital parameters leads to the highest recovery rate of open cluster stars. Nevertheless, even employing the best performing parameter combinations leads to low open cluster recovery rates. We find that, in most cases, chemodynamical tagging of open clusters using blind clustering algorithms is not efficient, which is in line with previous theoretical and observational work. However, we show that the addition of cuts based on metallicity, age, and birth radius in order to reduce the size of the clustering catalog can marginally improve the recovery rate of open clusters.https://doi.org/10.3847/1538-4357/adccbcOpen star clustersMilky Way formationChemical abundancesStellar ages |
| spellingShingle | Nicholas A. Barth David Mendez Rana Ezzeddine Yuxi(Lucy) Lu Leslie M. Morales Zachary R. Claytor Jamie Tayar Trials and Tribulations of Chemodynamical Tagging: Investigating the Recovery of Open Clusters in the Gaia Data Release 3 and GALAH Data Release 4 Catalogs The Astrophysical Journal Open star clusters Milky Way formation Chemical abundances Stellar ages |
| title | Trials and Tribulations of Chemodynamical Tagging: Investigating the Recovery of Open Clusters in the Gaia Data Release 3 and GALAH Data Release 4 Catalogs |
| title_full | Trials and Tribulations of Chemodynamical Tagging: Investigating the Recovery of Open Clusters in the Gaia Data Release 3 and GALAH Data Release 4 Catalogs |
| title_fullStr | Trials and Tribulations of Chemodynamical Tagging: Investigating the Recovery of Open Clusters in the Gaia Data Release 3 and GALAH Data Release 4 Catalogs |
| title_full_unstemmed | Trials and Tribulations of Chemodynamical Tagging: Investigating the Recovery of Open Clusters in the Gaia Data Release 3 and GALAH Data Release 4 Catalogs |
| title_short | Trials and Tribulations of Chemodynamical Tagging: Investigating the Recovery of Open Clusters in the Gaia Data Release 3 and GALAH Data Release 4 Catalogs |
| title_sort | trials and tribulations of chemodynamical tagging investigating the recovery of open clusters in the gaia data release 3 and galah data release 4 catalogs |
| topic | Open star clusters Milky Way formation Chemical abundances Stellar ages |
| url | https://doi.org/10.3847/1538-4357/adccbc |
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