Seminars and Colloquia

Radio observations of astrophysical transients and what we can learn from themAstrophysics Seminar

by Arvind Balasubramanian (Indian Institute of Astrophysics)

Asia/Kolkata
Auditorium

Auditorium

Description

Abstract

Astrophysical transients are a class of variable sources often associated with some of the most cataclysmic phenomena in the universe, such as compact objects (neutron stars and black holes), mergers, and explosions of massive stars. Radio studies of transients uniquely unveil key information on the physics at play in these events, as well as important clues on the properties of their surroundings; complementing what we can learn from observations in other wavelengths of the electromagnetic spectrum. In this talk, I will focus on some interesting physical insights we can obtain from radio observations of a few interesting transients: the radio afterglow from the binary neutron star merger event, GW170817; and a peculiar re-brightening of the radio afterglow of core-collapse supernova, SN2004dk. Following this, I will discuss my recent work with Fast Radio Bursts (FRBs), highlighting how follow-up observations, especially in the radio wavelengths, will help us in understanding these sources better. I will conclude with a brief description of the research I plan to carry out at IIA.