High Energy Astrophysics Colloquium
| Date | Presenter | Contents/Abstract |
|---|---|---|
| 23.8.9 14:00- |
Mainak Mukhopadhyay （Penn. State） |
"Multi-messenger signatures from core-collapse supernovae: neutrinos and gravitational waves" |
| In the current era of multi-messenger astronomy, gravitational wave (GW), neutrino, photon, and cosmic ray observations are combined to extract information about astrophysical sources and phenomena in the Universe. A core-collapse supernova (CCSN) serves as nature's very own laboratory. They have been one of the prime focuses of multi-messenger astronomy. In this talk, I will discuss my work on understanding the information that neutrinos from CCSNe can provide us with in the context of multi-messenger astronomy. I will present a new phenomenological description of the neutrino GW memory effect, highlighting its detectability, and physics potential in the present context. I will also present a novel idea of how observations of the neutrino GW memory from CCSNe will enable time-triggered searches of supernova neutrinos at megaton scale neutrino detectors. I will conclude with discussing my work on how neutrino observations at future neutrino detectors may enable us to constrain turbulence in supernovae and the pre-supernova alerts using pre-supernova neutrinos. Overall, the main theme of this talk will be to show how neutrinos from the various phases of a CCSN can be used to gain insights and understanding in a much broader context. |