Probing the rotation of core-collapse supernova with a concurrent analysis of gravitational waves and neutrinos

When a core-collapse supernova (SN) happens in our galaxy, various detectors will detect gravitational waves (GWs) and neutrinos. Current numerical simulations have successfully introduced multi-dimensional effects to produce exploding SN models, but thus far the explosion mechanism is not well understood. In this paper, we focus on an investigation of progenitor core rotation via comparison of the start time of GW emission and that of the neutronization burst. The GW and neutrino detectors are assumed to be the KAGRA detector and EGADS detector, respectively. Our detection simulation studies show that for a nearby supernova(<0.2 kpc) we can confirm the lack of core rotation close to 100% of the time, and the presence of core rotation about 90% of the time. Subject headings: supernovae:general, neutrinos, gravitational waves, stars:rotation