Updated parameters of 1743 open clusters

DOI

In this study, we follow up our recent paper (Monteiro et al., 2020MNRAS.499.1874M) and present a homogeneous sample of fundamental parameters of open clusters in our Galaxy, entirely based on Gaia DR2 data. We used published membership probability of the stars derived from Gaia DR2 data and applied our isochrone fitting code, updated as in Monteiro et al. (2020MNRAS.499.1874M), to G_BP_ and G_RP_Gaia DR2 data for member stars. In doing this, we take into account the nominal errors in the data and derive distance, age, and extinction of each cluster. This work therefore provides parameters for 1743 open clusters and, as a by-product, a list of likely not physical or dubious open clusters is provided as well for future investigations. Furthermore, it was possible to estimate the mean radial velocity of 831 clusters (198 of which are new and unpublished so far), using stellar radial velocities from Gaia DR2 catalogue. By comparing the open cluster distances obtained from isochrone fitting with those obtained from a maximum likelihood estimate of individual member parallaxes, we found a systematic offset of (-0.05+/-0.04) mas.

Cone search capability for table J/MNRAS/504/356/table12 (Results of mean astrometric parameters obtained using the Gaia DR2 stellar proper motion and parallaxes (table 1) and fundamental parameters obtained from the isochrone fits (table2))

Identifier
DOI http://doi.org/10.26093/cds/vizier.75040356
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/MNRAS/504/356
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/504/356
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/504/356
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/MNRAS/504/356
Provenance
Creator Dias W.S.; Monteiro H.; Moitinho A.; Lepine J.R.D.; Carraro G.; Paunzen E.,Alessi B.; Villela L.
Publisher CDS
Publication Year 2021
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Exoplanet Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy