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Table · dataset · 2023

Young nearby open clusters members photometry

Listed in IVOA Registry (Virtual Observatory)

Open clusters are groups of coeval stars sharing properties such as distance and metallicity, and they are key to understanding stellar evolution.

Description

Our main goal is to study the evolution of open clusters with a special focus on the universality of the luminosity function. We applied an upgraded version of the convergent point technique on about 50 open clusters.

The selection of cluster members was based purely on the exquisite astrometry of the Gaia DR3 and Hipparcos catalogues in the five-dimensional or full six-dimensional space. We present updated lists of bona fide members of ~50 open clusters within 500pc and younger than 1Gyr, exploiting the full depth of the third Gaia data release complemented by Hipparcos at the bright end, excluding regions in the Galactic plane. Our catalogues also are complemented by optical and infrared photometry from the major large-scale public surveys.

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All the data will be made available on a dedicated webpage with interactive plots and a direct link to Aladin and Vizier hosted at the Centre de Donnees de Strasbourg. We derived luminosity functions for all bound clusters and compared them in three age groups of ~50Myr, ~150Myr, and ~600Myr, discussing similarities and differences to constrain their dynamical evolution. Luminosity functions of clusters at 50Myr are more likely similar to each other and show a greater degree of similarity than older clusters.

We explain this observation with the universal luminosity function within the volume of our sample (500pc). Luminosity functions of clusters with ages similar to the Pleiades or Hyades are more diverse, perhaps due to internal dynamical evolution, but more work is needed to provide additional evidence.

Links

Where it is published

Documentation and papers

Catalogue records · 2

Topics

Stated by source
Infrared · Optical
Provenance · 1 source records, 9 field assertions
SourceKeyLast seenRaw
IVOA Registry (Virtual Observatory)ivo://cds.vizier/j/a+a/678/a7512 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[field].local:field:astronomymapping · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[modality].ivoa_waveband:infraredsource · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[modality].ivoa_waveband:opticalsource · IVOA Registryconnector:ivoa_registry@1.0.0
descriptionsource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_description
license_textsource · IVOA Registryconnector:ivoa_registry@1.0.0
publication_datesource · IVOA Registryconnector:ivoa_registry@1.0.0
titlesource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_title
updated_datesource · IVOA Registryconnector:ivoa_registry@1.0.0