Abstract Details
| Name: GAURAV SINGH Affiliation: Aryabhatta Research Institute of Observational sciences(ARIES) Conference ID: ASI2018_1179 Title : STUDY OF BLUE STRAGGLER STARS IN GALACTIC GLOBULAR CLUSTER NGC 6656 Authors and Co-Authors : R K S Yadav & Aryabhatta Research Institute of observational sciencES (ARIES) Abstract Type : Contributed Talk Abstract Category : Stars,ISM and the Galaxy Abstract : Being one of the oldest stellar systems, Globular clusters (GCs) offer an excellent opportunity to understand the dynamical evolution of the cluster. NGC 6656 is a Galactic globular cluster located at a distance of about 3 Kpc. The nature of its formation and evolution over its entire lifetime has been debatable over the years. The photometric and spectroscopic studies, however, has revealed many interesting clues about its formation history. In this meet, I will present an interesting result based on Blue straggler stars (BSSs) study of the Globular cluster NGC 6656. The projected radial density profile of the cluster show many interesting results i.e, the presence of two intermediate black holes (IMBHs) and its initial formation mechanism. We have also derived new cluster parameters by fitting mono-mass King model to the projected density profile of the cluster. The BSS radial distribution shows a bimodal behaviour, which is consistent with the "empirical dynamical clock" relation defined in Ferraro et al. (2012). Suggesting that NGC 6656 is an intermediate dynamical-aged cluster. |