SEMINAR 2026

Black Holes are Not Alone

SpeakerA/Prof Sumanta Chakraborty, Indian Association for the Cultivation of Science (IACS), Kolkata, India
Date/TimeWednesday, 18 Nov, 3pm
LocationS11-02-07 Conference Room
HostAsst/Prof Alvin Chua

Abstract

I will discuss how environmental effects, in particular, the effect of dark matter surrounding a black hole may affect its properties and how these can be exploited to assess the nature of environments using gravitational waves. In these connections, I will discuss the effect of the dark matter environment on the quasi-normal modes as well as the tidal Love numbers of black holes, along with possible constraints on the dark matter distribution from gravitational wave phasing in the context of extreme mass ratio inspiral.

Biography

Sumanta Chakraborty is currently an Associate Professor at the Indian Association for the Cultivation of Science (IACS), Kolkata, India. He is also serving as an Associate Editor of the international journal, named, General Relativity and Gravitation, published by Springer. He is a regular visitor of Max Planck Institute for Gravitational Physics, Potsdam, Germany and he has received Max-Planck Mobility Grant from the Max Planck Society, Germany. His Doctoral research has won him V.V. Narlikar Best Thesis Award from IAGRG, India.