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This study identifies neutrino flavor conversion as a critical variable that can flip the predicted fate of massive stars between supernova explosions and direct black hole collapse. By incorporating this quantum mechanical process into simulations, researchers have refined our understanding of stellar evolution for objects between 16 and 30 solar masses. The findings highlight how fundamental particle physics directly influences macroscopic astrophysical outcomes.
Dying stars may choose black hole or supernova based on neutrino ‘flavor
Supernova or black hole? Ghost particles’ “flavor” may determine the fate of dying stars supernova or black hole ghost particles flavor may determine the fate of dying stars Supernova or black hol... Supernova or black hole? Ghost particles’ “flavor” may determine the fate of dying stars.
NASA, ESA, CSA, STScI, Danny Milisavljevic (Purdue University), Ilse De Looze (UGhent), Tea Temim (Princeton University) have captured a detailed image of supernova remnant Cassiopeia A, revealing the shell of material colliding with gas shed by the star before its explosion. Researchers at the University of Copenhagen suggest the fate of dying massive stars, whether they become supernovae or black holes, may hinge on an often-overlooked property of neutrinos, also known as ‘ghost particles’ and their ability to change “flavor.” Their new study of 195 simulations of the collapse of stars demonstrates that neutrino flavor conversion significantly alters outcomes, particularly for stars between 16 and 30 times the mass of our…
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