How do micro black holes maintain their state?

In summary, black holes can exist independent of mass, as long as the density is high enough for gravitational collapse to occur. Primordial micro black holes, formed during the early expansion of the universe, have a short lifespan due to Hawking radiation.
  • #1
johnnymorales
9
6
All that I've read about black holes describe something so massive it's gravity overcomes all other forces and it causes a region of spacetime to develop that no particle or electromagnetic radiation can escape from.

That explanation since it depends on mass makes no sense in regard to theorized micro black holes created at the dawn of creation.

I've never read anything explaining how they were created without the mass required to generate the gravity to create and maintain it.

So what is the explanation for how they can exist or could have existed without starting out first with sufficient mass?
 
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  • #2
If you compress any mass/energy to it's Scwartzchild radius you get a black hole. http://en.wikipedia.org/wiki/Schwarzschild_radius.

Primordial, micro black holes might have formed during the time of extreme density during the universe's early expansion.

Black holes emit Hawking radiation. Eventually a black hole can disappear via Hawking radiation. The life-span of a black hole is proportional to its mass.. Micro black holes would have very, very short lifespands.
 
  • #3
johnnymorales said:
All that I've read about black holes describe something so massive it's gravity overcomes all other forces and it causes a region of spacetime to develop that no particle or electromagnetic radiation can escape from.

That explanation since it depends on mass makes no sense in regard to theorized micro black holes created at the dawn of creation.

I've never read anything explaining how they were created without the mass required to generate the gravity to create and maintain it.

So what is the explanation for how they can exist or could have existed without starting out first with sufficient mass?
Black holes are not dependent upon mass, but rather density. As cyclopia mentioned above, if you are able to collapse matter, in any amount, down to its Scwartzchild radius, you will obtain a black hole. Primordial black holes could only have formed when the temperature and pressure was sufficient enough to cause gravitational collapse. Which puts it no later than the Hadron Epoch (from 0.000001 seconds to 1 second after the Big Bang).
 
  • #4
The density of the very early universe was quite high. Primordial black holes were hypothesized to form under such conditions. Modern gamma ray background measurement suggest primordial micro black holes are not as abundant as originally thought.
 

Related to How do micro black holes maintain their state?

1. How do micro black holes form?

Micro black holes are formed when matter is compressed to a very high density. This can occur naturally through the collapse of a massive star or artificially through high energy particle collisions.

2. How do micro black holes maintain their state of being?

Micro black holes maintain their state by constantly absorbing and emitting radiation, which is known as Hawking radiation. This radiation helps to balance out the mass and energy of the black hole, preventing it from collapsing or expanding.

3. Can micro black holes ever disappear?

Yes, micro black holes can eventually disappear through the process of Hawking radiation. As they emit radiation, they lose energy and mass, causing them to shrink and eventually dissipate completely.

4. Do micro black holes have the potential to grow larger?

While micro black holes can grow through the absorption of matter and energy, they also lose mass and energy through Hawking radiation. Therefore, the size of a micro black hole remains relatively stable unless it is continuously fed with matter and energy.

5. What would happen if a micro black hole came into contact with Earth?

If a micro black hole were to come into contact with Earth, it would most likely pass through the planet without causing any significant damage. This is because micro black holes have a very small size and mass, and their gravitational pull is not strong enough to cause any noticeable effects on a large scale.

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