Abstract Details
| Name: Snehalata Sahu Affiliation: Indian Institute of Astrophysics Conference ID: ASI2018_705 Title : UVIT Study of Blue Straggler Stars in Globular Cluster NGC 5466 Authors and Co-Authors : Annapurni Subramaniam, Indian Institute of Astrophysics Abstract Type : Poster Abstract Category : Stars,ISM and the Galaxy Abstract : NGC 5466 is a metal poor globular cluster ([Fe/H]= -1.98 dex) located in the constellation of Bootes at a distance of 16 Kpc. This cluster has a low central concentration, but contains a large number of Blue Straggler Stars (BSS). The main formation pathways of BSS in the cluster is still not well understood. We present the UVIT observations of NGC 5466 in 4 filters, two in Far-UV (F148W and F169M) and two in Near-UV (N245M and N263M) with fairly large exposure times. We have performed crowded-field photometry on the UVIT images and created the UVIT Color-Magnitude Diagrams. The core of the cluster is resolved and we are able to obtain the full BSS census in this cluster to create the radial distribution of BSS covering the entire cluster region (~11'). We will present the SEDs of the BSS and discuss their formation pathways. |