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type 1a supernova are the thermonuclear explosions of accreting white dwarfs that approach the chandrasekhar limit....

type 1a supernova are the thermonuclear explosions of accreting white dwarfs that approach the chandrasekhar limit. in this problem, consider an exploding white dwarf of mass 1.4 solar masses and a radius of 10^4km, and is made entirely of Nickel 56.

How bright will this explosions be?
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Therefore the brightness of explolsoe can be calculated as 5.22*10^50 ergs.

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