After Supernova: What Happens Next?

  • Thread starter aydinmustafa
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In summary: So you end up with a big blob of hydrogen, and then gravity works its magic and it pulls all these hydrogen atoms together to form a new star.
  • #1
aydinmustafa
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It is going to be a long question, thanks for reading and answering it on advance,

In order to get a star explode as a supernova, it should be big enough and should finish its fuel (hydrogen) after the star explodes as a supernova the iron in center fused to heavier elements such as gold, chrome, lead etc and diffuses all these things and rest of the star to space and forms a nebula. Then gravity takes its role and starts getting hydrogen atoms together again and forms new stars.
My question is, that star exploded as supernova finished all hydrogen it had before the explosion and as a result of explosion heavier elements occured, how come hydrogen atoms get together to form new star, as there is heavier elements which are bigger in mass as well shouldn't those heavier elements have bigger gravity to get everything together in the center of the nebula? and where do hydrogen atoms come from as star finished all hydrogen before it exploded?
Regards
Mustafa AYDIN
 
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  • #2
There is plenty of hydrogen around outside of individual stars. It makes up about 75% of the baryonic (ordinary) matter of the universe.
 
  • #3
aydinmustafa said:
It is going to be a long question, thanks for reading and answering it on advance,

In order to get a star explode as a supernova, it should be big enough and should finish its fuel (hydrogen) after the star explodes as a supernova the iron in center fused to heavier elements such as gold, chrome, lead etc and diffuses all these things and rest of the star to space and forms a nebula. Then gravity takes its role and starts getting hydrogen atoms together again and forms new stars.
My question is, that star exploded as supernova finished all hydrogen it had before the explosion and as a result of explosion heavier elements occured, how come hydrogen atoms get together to form new star, as there is heavier elements which are bigger in mass as well shouldn't those heavier elements have bigger gravity to get everything together in the center of the nebula? and where do hydrogen atoms come from as star finished all hydrogen before it exploded?
Regards
Mustafa AYDIN
1. Most of the normal matter in the universe has yet to ever collapse so far that it forms a star.
2. Large stars don't process all of their material. They go supernova when the iron core reaches sufficient size that it can't support its own weight. That happens long before the entire star is converted into iron.
 
  • #4
Also, when a supernova happens, the core usually collapses into a neutron star or black hole. The formation of gold, lead, and heavier elements happens from the force of the explosion itself on the outer layers of the star. This fuses certain amounts together into heavier and heavier elements.
 
  • #5
aydinmustafa said:
My question is, that star exploded as supernova finished all hydrogen it had before the explosion and as a result of explosion heavier elements occured, how come hydrogen atoms get together to form new star, as there is heavier elements which are bigger in mass as well shouldn't those heavier elements have bigger gravity to get everything together in the center of the nebula? and where do hydrogen atoms come from as star finished all hydrogen before it exploded?

Good question. In your typical supernova most of the matter ends up unburned. The star will go boom when the core has 1.4 solar mass of iron, but if you have a 20 solar mass star, the outer layers will still be unburned hydrogen.
 
  • #6
Drakkith said:
Also, when a supernova happens, the core usually collapses into a neutron star or black hole. The formation of gold, lead, and heavier elements happens from the force of the explosion itself on the outer layers of the star.

When the shock goes through the iron and silicon layers, you do get some production of heavy elements, but there is very little fusion when the shock goes their the hydrogen layer. The problem is that hydrogen takes a while to fuse, and so when you throw a shock wave through hydrogen, it happens too quick for anything much to happen.
 

1. What happens to the star after a supernova?

After a supernova, the star undergoes a rapid collapse due to the force of gravity. The outer layers of the star are expelled into space, while the core collapses into either a neutron star or a black hole.

2. How does a supernova affect surrounding planets and objects?

A supernova can have a significant impact on surrounding planets and objects. The intense radiation and shockwaves can strip away the atmosphere of nearby planets and disrupt the orbits of orbiting bodies.

3. Can a supernova cause a black hole?

Yes, a supernova can cause a black hole. If the core of the star is massive enough (at least three times the mass of our sun), it will collapse into a singularity and form a black hole.

4. What is the aftermath of a supernova explosion?

The aftermath of a supernova explosion can include the formation of a neutron star or black hole, the creation and dispersal of heavy elements into space, and the formation of new stars and planetary systems from the remains of the previous star.

5. How often do supernovae occur?

Supernovae are relatively rare events, occurring on average once every 50 years in a galaxy the size of our Milky Way. However, they are crucial for the formation of new stars and play a significant role in the evolution of galaxies.

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