Galactic Core-Collapse Supernovae - a Multi-Messenger Approach

• Applicants: Professor Dr. Lutz Köpke; Professor Dr. Michael Wurm
• Subject Area: Nuclear and Elementary Particle Physics, Quantum Mechanics, Relativity, Fields ; Astrophysics and Astronomy
• Term: from 2017 to 2022
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 388232875

The next galactic core-collapse Supernova (SN) will provide a wealth of new insights on stellar, particle and gravitational physics. However, to make optimum use of the information provided by various detector technologies, their signals must be subjected to a common analysis. This multi-messenger approach will be of particular importance for the interpretation of neutrino and gravitational wave data: both detector technologies must rely on faint signals but are unique in providing direct insights into the inner workings of the core collapse.With this proposal, we intend to support a recently established network of neutrino and gravitational wave observatories. We will develop a set of both online and offline analysis tools that will increase the sensitivity for a galactic SN detection and will prepare the path towards a combined evaluation of the collected data: in particular, we will set up a common low-threshold trigger system for neutrino detectors that will enhance the observation range for gravitational waves; we will develop common analysis tools to correlate the time structures of neutrino and gravitational wave signals; we will upgrade the existing SNOwGLoBES simulation package to include additional neutrino detection channels, a modeling of neutrino telescopes and an interface to a large database of theoretical models for SN neutrino emission; and finally, we will develop a framework for a joint analysis of the largely complementary data provided by different neutrino detectors on the SN neutrino burst, aiming to determine the time, energy and flavor structure as well as the origin of the neutrino signal. The resulting software toolkit will be made available not only to the participants of the network but the whole community, aiming to promote the sensitivity of SN searches and to support future multi-messenger analyses.

• DFG Programme: Research Grants