"The sheer amount of radiated energy from these bursts is so large that you can't power them with a core collapse stellar explosion — or any other type of normal stellar explosion."

Mysterious bright blue cosmic blasts triggered by black holes shredding stars, scientists say. 'It's definitely not just an exploding star.'

Source: space
Source Link: https://www.space.com/astronomy/black-holes/mysterious-bright-blue-cosmic-blasts-triggered-by-black-holes-shredding-stars-scientists-say-its-definitely-not-just-an-exploding-star