Are stars disappearing into their own black holes? A strange binary system says ‘yes’

Are stars disappearing into their own black holes?  A strange binary system says ‘yes’

Scientists have discovered compelling evidence that some massive stars They end their existence with a whimper, not a bang, and sink into a black hole of his own creation without the light and fury of a supernova.

To understand why this is important, we need to start with a crash course in stellar evolution. Stars generate energy through nuclear fusion processes in their nuclei by which they convert hydrogen into helium. When stars with at least eight times the mass of our sun When they run out of that supply of hydrogen, they begin fusion reactions involving other elements: helium, carbon, oxygen, etc., until they end up with an inert iron core that requires more energy to be put into the fusion reaction. which can. produce. At this stage, fusion reactions cease and the energy production that sustains the star evaporates. Suddenly, gravity has free rein and causes the core to collapse, while the outer layers of the star bounce off the contracting core and explode outward, generating a supernova that, for a few weeks, can sometimes outshine a whole star galaxy.