A Massive Star Completely Destroyed by a Supernova is Puzzling Scientists

Stars greater than eight solar-masses end their lives spectacularly—as supernovae. These single-star supernovae are called core collapse supernovae because when their dense cores (at this stage composed primarily of iron) are no longer able to withstand the inward pressure of gravity they collapse inward before exploding. Core collapse supernovae with strong hydrogen emission lines are thought to result from the explosions of red supergiant stars, massive stars that have evolved beyond their principle hydrogen burning stage and grown in radius. Until recently, astronomers thought these stars were relatively quiescent until their final demise, but evidence has been accumulating that they actually experience strong mass loss before exploding. In some models, emission resulting when ejecta from the supernovae encounter these envelopes produces the observed variations in core collapse supernova.

A Massive Star Completely Destroyed by a Supernova is Puzzling Scientists

Supernova 2016iet is an example of one of the most extreme types of stellar explosions, though it has some odd features. (Credit: Gemini Observatory/NSF/AURA/ illustration by Joy Pollard) In ...

Fri 16 Aug 19 from Discover Magazine

A massive star completely destroyed by a supernova is puzzling scientists, Fri 16 Aug 19 from Astronomy.com

Total annihilation for supermassive stars

Thu 15 Aug 19 from Phys.org

Modeling a core collapse supernova

Mon 12 Aug 19 from Phys.org

Monster 'Loner' Star Causes Scientists to Rethink Supernova Explosions

This star has a number of odd qualities, and may have had one of the most powerful explosions ever observed.

Wed 21 Aug 19 from SPACE.com

This Enormous Supernova Was Unlike Anything Seen Before

Astronomers have observed a supernova unlike any ever observed before, and it might be strong evidence of an important kind of stellar death that would have shaped early galaxies.Read more...

Fri 16 Aug 19 from Gizmodo

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