Astronomy and Astrophysics Seminars

Stellar Graveyards: Signals from the merging deads

by Dr. Rahul Kashyap (Penn State University)

Monday, November 21, 2022 from to (Asia/Kolkata)
at Hybrid ( A269 ) Meeting ID: 921 2755 7203 Passcode: 244798
Single stars end their lives in either of three objects -- white dwarfs, neutron stars, and black holes; eventually "dark" objects. When they form in a pair, they produce one of the most spectacular astrophysical events and hence laboratories of extreme physical conditions. In this talk, I will present a general overview of the astrophysical events following the merger of these compact stars at the end state of their evolution in a binary system in light of my own research. More specifically, I will confine to Type Ia supernovae from binary white dwarf mergers, kilonovae, and gravitational waves from binary neutron star mergers. I will discuss what can we learn about the conditions of matter which is usually not possible by terrestrial experiments and about the universe for which these are excellent tools.
Organised by DAA