IceCube's view on core collapse supernovae
Prof. Lutz Köpke
Institut für Physik, Universität Mainz
Hannover, AEI, Seminarraum 103
Core collapse supernovae are expected to occur in our galaxy about twice per century. As the inner region of the star cannot be studied with electromagnetic probes, neutrinos and gravitational waves provide unique insights in the internal mechanisms in place during the core collapse. By lucky timing, two dozen neutrinos from a supernovae in the Magellanic cloud were registered within 10 s by neutrino detectors. The scientific harvest was very rich: in fact, references to SN 1987A have appeared in more than 70,000 articles.
With about 500.000 recorded neutrino interactions for a supernovae at the galactic center, IceCube offers unrivaled statistical precision and will remain competitive even if new proposed projects will have been realized. As the signal is observed on top of a large dark rate background, IceCube cannot resolve individual events, i.e. their energy, direction and type, however. Investigations that help to partly remedy this situation will be briefly mentioned.
Simulations that address particle and astrophysical aspects of supernovae as well as prospects for joint measurements of various neutrino and gravitational wave experiments will be discussed.