Abstract Details
| Name: Jayanand Maurya Affiliation: ARIES, Nainital. Conference ID: ASI2018_1646 Title : Photometric study of the open cluster NGC 2239 Authors and Co-Authors : Dr. Yogesh C. Joshi, ARIES-Nainital. Abstract Type : Poster Abstract Category : Stars,ISM and the Galaxy Abstract : Open star clusters are unique test beds to understand stellar-evolution theories because all member stars of a cluster were born from the same giant molecular cloud and have approximately same distance, age, chemical composition, and reddening. By comparing the colour-magnitude diagram (CMD) and Two-colour diagram (TCD) of an open star cluster with the theoretical evolutionary models, one can estimate the values of different physical parameters of the cluster. In this study, we have done UBVRI photometry of stars present in intermediate-age open cluster NGC 2239. The radius of the cluster was estimated by drawing radial density profile (RDP)and fitting a King model. The cluster membership probabilities of stars in the region of cluster were derived through a photometric and kinematic study of the cluster. To estimate the distance, age, and reddening of the cluster NGC 2239, we used stellar isochrones fitting method in the observed (B − V)/V and (V − I)/V CMDs, and TCDs. The detailed photometric study of the cluster shall be presented in the poster. |