Table · dataset · 2025
Metallicities of old open clusters
Listed in IVOA Registry (Virtual Observatory)
We determined precise and homogeneous metallicities for old open clusters (>=500Myr) from all-sky catalogues of stellar parameters leveraging Gaia spectrophotometry.
Description
Our purpose was to revisit the metallicity distribution of the oldest open clusters as a function of their Galactic position and age with improved statistics. Several catalogues of stellar parameters have been cross-matched to the most recent census of open clusters and their members.
Median metallicities per cluster and per catalogue were evaluated by comparison to high-resolution spectroscopy. Our sample includes 1113 open clusters. A typical precision of 0.05dex is achieved for a subsample of nearly 600 clusters when only their bright red giants are considered.
Read the rest (1 more)
Metal-rich and metal-poor clusters never studied before are presented, as well as remnants of dissolving clusters. Galactic maps show a smooth decrease of metallicity from inside to outside the disc. We measured the radial and vertical gradients, their evolution with time and the age-metallicity relation in bins of Galactocentric distance.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/699/A246 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2025A&A...699A.246H ui.adsabs.harvard.edu/abs/2025A%26A...699A.246H ↗
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/699/a246 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Stellar astronomy and planetary systems 75%
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/699/a246 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].anzsrc:field:510109 | enrichment · IVOA Registry | taxonomy-embedding@1.1.0 | title+keywords+description (75%) |
| concepts[field].local:field:astronomy | mapping · 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 |