8 votes
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Did the scientists really observed gold and platinum being created from kilonova?

No they didn't. The deduction that (very) heavy elements are being produced is somewhat indirect and involves creating a theoretical model of the expanding "fireball" and comparing that model against ...
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  • 117k
6 votes
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Does a kilonova leave a high mass remnant?

I think it is generally expected that the merger of two neutron stars will lead to the formation of a black hole. What is more uncertain is whether that black hole forms straight away, or an ...
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4 votes
Accepted

Identifying cataclysmic stellar phenomena

Any of these phenomena would be visible to the naked eye if they occured in the Milky Way, or a neighbouring galaxy (such as the Magellanic clouds) and was not obscured by dust. At the distance of ...
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  • 90.5k
4 votes
Accepted

Do mixed type remnant collisions produce anything interesting?

WD+NS collision cannot leave nothing behind. Gravitational mass defect of NS is ~10% of its rest mass -- thus whatever energy released in the collision cannot disrupt the NS. The energy released is ...
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3 votes
Accepted

How loud would a supernova, kilonova, and hypernova be?

This is a kind of silly question because you are dealing with object (stars, etc) that cannot exist in an atmosphere so treat the whole below as a bit of a lark. The decibel scale is logarithmic. 120 ...
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2 votes

How big would the supernova when a neutron star collides with another neutron star?

When two neutron stars collide, the resulting supernova is called a "kilonova," producing much more energy than a regular supernova. Additionally, heavier elements are formed, such as gold, ...
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