Be 81, NGC 1917 and NGC 2141 BVI photometry

DOI

In this paper we analyse the evolutionary status of three open clusters: NGC 1817, NGC 2141 and Berkeley 81. They are all of intermediate age, two are located in the Galactic anticentre direction while the third one is located in the Galactic Centre direction. All of them were observed with Large Binocular Camera at Large Binocular Telescope using the Bessel B, V and I filters. The cluster parameters have been obtained using the synthetic colour-magnitude diagram (CMD) method, i.e. the direct comparison of the observational CMDs with a library of synthetic CMDs generated with different evolutionary sets (Padova, FRANEC and FST). This analysis shows that NGC 1817 has subsolar metallicity, age between 0.8 and 1.2Gyr, reddening E(B-V) in the range 0.21 and 0.34 and distance modulus (m-M)0 of about 10.9; NGC 2141 is older, with age in the range 1.25 and 1.9Gyr, E(B-V) between 0.36 and 0.45, (m-M)0 between 11.95 and 12.21 and subsolar metallicity; Berkeley 81 has metallicity about solar, with age between 0.75 and 1.0Gyr, has reddening E(B-V)~0.90 and distance modulus (m-M)_0~12.4. Exploiting the large field of view of the instrument we derive the structure parameters for NGC 2141 and Berkeley 81 by fitting a King profile to the estimated density profile. Combining this information with the synthetic CMD technique we estimate a lower limit for the cluster total mass for these two systems.

Cone search capability for table J/MNRAS/437/1241/be81bvi (BVI Johnson-Cousins photometric catalogue for Berkeley 81)

Cone search capability for table J/MNRAS/437/1241/n1817bvi (BVI Johnson-Cousins photometric catalogue for NGC 1817)

Cone search capability for table J/MNRAS/437/1241/n2141bvi (BVI Johnson-Cousins photometric catalogue for NGC 2141)

Identifier
DOI http://doi.org/10.26093/cds/vizier.74371241
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/MNRAS/437/1241
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/437/1241
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/437/1241
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/MNRAS/437/1241
Provenance
Creator Donati P.; Beccari G.; Bragaglia A.; Cignoni M.; Tosi M.
Publisher CDS
Publication Year 2014
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; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy