Table · dataset · 2026
NGC 2509 spellar param. and abundances
Listed in IVOA Registry (Virtual Observatory)
NGC 2509 is a distant (~2.5kpc) and little-studied open cluster located in the third Galactic quadrant.
Description
It is a moderately old cluster, whose age has not yet been precisely determined. The main-sequence stars in NGC 2509 follow a narrow distribution in the color-magnitude diagram, unlike other clusters of similar age.
In addition, its chemical composition has never been investigated. To address these issues and characterize the cluster we performed moderate- and high-resolution spectroscopy with FLAMES@VLT of 132 stars, both dwarfs and giants, which represents a significant fraction (~73%) of likely members. We provide atmospheric stellar parameters and, for the first time, chemical abundances for 21 species with atomic numbers up to 60.
Read the rest (3 more)
In our analysis we followed two different methodologies, both of which will be used for the incoming WEAVE stellar surveys. We find an average radial velocity for NGC 2509 of 58.6+/-1.3km/s and a mild supersolar metallicity ([Fe/H]~0.1dex). This value is slightly higher than expected according to its galactocentric distance, but still compatible with the Galactic gradient.
From the lithium content of the dwarfs and the isochrone-fitting method we obtain an age for NGC 2509 of 1.26+/-0.3Gyr. The reddening across the cluster field is negligible (A_V_=0.25+/-0.02mag). The cluster peculiar main sequence turnoff is due to a narrow distribution of the rotational velocities peaking at vsini~80km/s, with little dispersion.
The chemical pattern of NGC 2509 follows the Galactic trends shown by other open clusters in the Galactic thin disk.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/710/A285 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2026A&A...710A.285B ui.adsabs.harvard.edu/abs/2026A%26A...710A.285B ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/a%2Ba/710/a285 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/710/a285 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |