Chemically tagging the Hyades Supercluster. A homogeneous sample of F6-K4 kinematically selected northern stars
| dc.contributor.author | Tabernero, H. M. | |
| dc.contributor.author | Montes Gutiérrez, David | |
| dc.contributor.author | González Hernández, J. I. | |
| dc.date.accessioned | 2023-06-20T04:11:55Z | |
| dc.date.available | 2023-06-20T04:11:55Z | |
| dc.date.issued | 2012-11 | |
| dc.description | © ESO, 2012. This work was supported by the Universidad Complutense de Madrid (UCM), the Spanish Ministerio de Ciencia e Innovación (MCINN) under grants BES-2009-012182, and AYA2011-30147-C03-02, and The Comunidad de Madrid under PRICIT project S2009/ESP-1496 (AstroMadrid). We would like to thank the anonymous referee for helpful comments and corrections. | |
| dc.description.abstract | Stellar kinematic groups are kinematical coherent groups of stars that might have a common origin. These groups are dispersed throughout the Galaxy over time by the tidal effects of both Galactic rotation and disc heating, although their chemical content remains unchanged. The aim of chemical tagging is to establish that the abundances of every element in the analysis are homogeneus among the members. We study the case of the Hyades Supercluster to compile a reliable list of members (FGK stars) based on our chemical tagging analysis. For a total of 61 stars from the Hyades Supercluster, stellar atmospheric parameters (T_eff, log g, ξ, and [Fe/H]) are determined using our code called StePar, which is based on the sensitivity to the stellar atmospheric parameters of the iron EWs measured in the spectra. We derive the chemical abundances of 20 elements and find that their [X/Fe] ratios are consistent with Galactic abundance trends reported in previous studies. The chemical tagging method is applied with a carefully developed differential abundance analysis of each candidate member of the Hyades Supercluster, using a well-known member of the Hyades cluster as a reference (vB 153). We find that only 28 stars (26 dwarfs and 2 giants) are members, i.e. that 46% of our candidates are members based on the differential abundance analysis. This result confirms that the Hyades Supercluster cannot originate solely from the Hyades cluster. | |
| dc.description.department | Depto. de Física de la Tierra y Astrofísica | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.sponsorship | Comunidad de Madrid | |
| dc.description.sponsorship | Universidad Complutense de Madrid (UCM) | |
| dc.description.sponsorship | Ministerio de Ciencia e Innovación (MCINN) | |
| dc.description.sponsorship | Plan Regional de Investigación Científica e Innovación Tecnológica (PRCIT), CAM | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/37673 | |
| dc.identifier.doi | 10.1051/0004-6361/201117506 | |
| dc.identifier.issn | 0004-6361 | |
| dc.identifier.officialurl | http://dx.doi.org/10.1051/0004-6361/201117506 | |
| dc.identifier.relatedurl | http://www.aanda.org/ | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/45032 | |
| dc.journal.title | Astronomy & Astrophysics | |
| dc.language.iso | eng | |
| dc.publisher | EDP Sciencies | |
| dc.relation.projectID | ASTROMADRID (S2009/ESP-1496) | |
| dc.relation.projectID | BES-2009-012182 | |
| dc.relation.projectID | AYA2011-30147-C03-02 | |
| dc.rights.accessRights | open access | |
| dc.subject.cdu | 52 | |
| dc.subject.keyword | Young moving groups | |
| dc.subject.keyword | Ursa-Major group | |
| dc.subject.keyword | Geneva-Copenhagen survey | |
| dc.subject.keyword | Planet search program | |
| dc.subject.keyword | Solar neighborhood | |
| dc.subject.keyword | Spiral structure | |
| dc.subject.keyword | Chromospheric activity | |
| dc.subject.keyword | Radial-velocities | |
| dc.subject.keyword | Hipparcos reduction | |
| dc.subject.keyword | Abundance analysis | |
| dc.subject.ucm | Astrofísica | |
| dc.subject.ucm | Astronomía (Física) | |
| dc.title | Chemically tagging the Hyades Supercluster. A homogeneous sample of F6-K4 kinematically selected northern stars | |
| dc.type | journal article | |
| dc.volume.number | 547 | |
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| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | 2dfe4286-12c7-4d3a-bfda-d298a90cc8fe | |
| relation.isAuthorOfPublication.latestForDiscovery | 2dfe4286-12c7-4d3a-bfda-d298a90cc8fe |
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