Abstract Details
| Name: Rashi Jain Affiliation: IIST Conference ID: ASI2018_1613 Title : AstroSat UVIT Investigation of the Globular Cluster NGC2808 Authors and Co-Authors : Dr. Sarita Vig, IIST Abstract Type : Poster Abstract Category : Stars,ISM and the Galaxy Abstract : NGC2808 is a metal poor and massive globular cluster in the southern sky. Contrary to the earlier accepted norm of co-eval stellar population in Globular Clusters, NGC2808 has been found to comprise of multiple stellar populations. We have observed this cluster in a number of UV filters (5 NUV and 2 FUV) using UVIT-AstroSat. Our motivation is to investigate the properties of various UV bright stellar populations such as Horizontal Branch, Red Giant Branch, Post-RGB etc, including their distribution across the cluster. The data from the UVIT-Astrosat observations have been reduced and photometry carried out on the images to obtain the catalog of UV bright stars. In the presentation, we discuss the resultant color-color and color-magnitude diagrams of the cluster with reference to the multiple stellar population observed in this region. |