The observation and record of supernova events had long been carried out centuries ago, though it was later revealed that supernovae are in fact the violent explosions of massive stars, the reason why they explode and what powers such explosions have remained a puzzle to astrophysicists after several decades of intensive study.
The recent study conducted by Professor Chu Ming Chung and Dr. Lin Lap Ming, both from Department of Physics, and other overseas scholars reported unique imprints of the quantum chromodynamics (QCD) phase transition on the emitted gravitational-wave and neutrino signals by using state-of-the-art multidimensional supernova simulations. The findings, recently published and selected as Editors’ Suggestion in a top physics journal Physical Review Letters, show that gravitational waves and neutrinos can become potentially new and powerful probes of the supernova cores, they also help astronomers to explore the origin of life.
Zha, S., O’Connor, E. P., Chu, M. C., Lin, L. M., & Couch, S. M. (2020). Gravitational-wave Signature of a First-order Quantum Chromodynamics Phase Transition in Core-Collapse Supernovae. Physical Review Letters, 125(5), 051102. DOI: https://doi.org/10.1103/PhysRevLett.125.051102