Supernovae Flashcards
1
Q
at what element does nuclear fusion end in stars
A
iron
2
Q
what happens after iron when all of the fuel in the star has been exhausted
A
the pull of gravity begins to collapse the star in a matter of seconds, the core temp rises to 100 billion kelvin, iron nuclei begin to dissociate into helium nuclei, protons and neutrons.
3
Q
how massive does a star have to be to result in a supernova
A
greater than 8 M☉
