- Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi
- Cilt: 27 Sayı: 5
- Astrophysical Parameters of the Open Cluster NGC 2509
Astrophysical Parameters of the Open Cluster NGC 2509
Authors : Talar Yontan, Seliz Koç
Pages : 1036-1045
Doi:10.16984/saufenbilder.1215972
View : 74 | Download : 111
Publication Date : 2023-10-18
Article Type : Research
Abstract :This study presents structural and fundamental astrophysical parameters of poorly studied open cluster NGC 2509. We used the third photometric and astrometric data release of the Gaia (Gaia DR3) to perform analyses. By taking into account the Gaia DR3 astrometric data, we calculated the membership probabilities of the stars in the region of NGC 2509. As a result of the membership analysis, 244 stars with membership probabilities P 50% were determined as the physical members of the cluster. The colour excess, distance and age were obtained simultaneously by fitting solar metallicity PARSEC isochrones to G×GBP-GRP colour-magnitude diagram. We considered the most likely cluster member stars during the fitting procedure and calculated the colour excess, distance and age of the NGC 2509 as E(GBP-GRP) = 0.100±0.184 mag, d = 2518±667 pc and t = 1.5±0.1 Gyr, respectively.Keywords : Galaxy: open cluster and associations: individual: NGC 2509, Galaxy: Disc, stars: Hertzsprung Russell (HR) diagram