Abstract Details
| Name: Sourav Chatterjee Affiliation: TIFR, Mumbai Conference ID: ASI2019_653 Title : The Intertwined Stories of Globular Clusters and Their Black Holes Authors and Co-Authors : Sourav Chatterjee, TIFR, Mumbai Abstract Type : Invited Abstract Category : Plenary Abstract : Dense and massive star clusters such as the globular clusters (GCs) are efficient factories for stellar exotica including GW sources similar to those detected by LIGO and Virgo. I will describe the BBH formation process inside typical GCs and discuss why GCs are so efficient in producing short-period binary black holes (BBHs). I will discuss some of the key detectable properties of BBHs dynamically assembled inside GCs. I will further show how the fates of a GC and its black holes are intimately connected making the retention fraction of BHs in today's GCs very interesting. I will describe the challenges for observationally constraining the retention fraction of BHs in today's GCs and possible ways to overcome them. One common uncertainty in predicting the rate of GW detections comes from the lack of constraints on the distribution of natal kicks for BHs. I will describe how this uncertainty could potentially be alleviated with the help of Gaia. |