Can a hypernova explosion last for years?

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In summary, the duration of a super/hyper nova explosion depends on various factors such as mass, size, power, and speed. However, the majority of the explosion's energy is deposited within a fraction of a second, with the remaining energy being released over a period of months to years as unstable nuclei decay. The explosion can continue to expand for a very long time and can be compared to a blast of dynamite rather than a volcanic eruption.
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bobie
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How long can the explosion of a super/hyper nova last?,
does time depend on mass?
is it possible that an explosion lasts for years?

Thanks
 
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bobie said:
How long can the explosion of a super/hyper nova last?,
does time depend on mass?
is it possible that an explosion lasts for years?
Thanks

How do you define the end of the explosion? The supernova ejects material into mostly empty space and this material continues expanding for a very long time. For example, this image is of a supernova that exploded in 1006 AD. It is still expanding. So do you consider this explosion to be still occurring? Or is the explosion "over"?
 
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phyzguy said:
How do you define the end of the explosion? The supernova ejects material into mostly empty space and this material continues expanding for a very long time. For example, this image is of a supernova that exploded in 1006 AD. It is still expanding. So do you consider this explosion to be still occurring? Or is the explosion "over"?
If I can make a comparison with a volcano, when matter stops being thrown out.
My question is if the esplosion is lake a blast of dynamite, or like a volcano , which can erupt for weeks. Can the star eject material for centuries? does time depend on size, power, speed etc.?
 
  • #4
bobie said:
If I can make a comparison with a volcano, when matter stops being thrown out.
My question is if the esplosion is lake a blast of dynamite, or like a volcano , which can erupt for weeks. Can the star eject material for centuries? does time depend on size, power, speed etc.?

I see. In that respect, it is more like a blast of dynamite. Most of the energy is deposited in a fraction of a second, and the explosion just evolves from there. The main qualification of this is that many of the heavy nuclei that are ejected are unstable, and they decay over a period of months to years and deposit their energy of decay in the expanding shell.
 
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1. What is a hypernova?

A hypernova is a type of stellar explosion that is more energetic and powerful than a supernova. It occurs when a massive star, usually at least 30 times the mass of the sun, collapses and forms a black hole or a neutron star.

2. How long does a hypernova last?

The duration of a hypernova is relatively short, typically lasting only a few seconds to a few minutes. This is due to the immense amount of energy released during the explosion.

3. When does a hypernova occur?

A hypernova occurs at the end of a massive star's life, after it has burned through all of its fuel and can no longer support itself against gravity. This usually happens within a few million years of the star's formation.

4. How far away can we detect a hypernova?

Due to the immense brightness and energy released during a hypernova, they can be detected even from very far distances. The farthest hypernova ever observed was over 13 billion light years away.

5. What can we learn from studying the time of a hypernova?

Studying the time of a hypernova can provide valuable information about the life cycle of massive stars and the formation of black holes and neutron stars. It can also help us understand the conditions in the early universe and how it has evolved over time.

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