What is inside a Black Hole ?

[czeslaw]

Evolution of the theory of the Black Hole:
1. Classical theory – a matter and information fall under Event Horizon into a singularity for ever.
2. Hawking model – a Black Hole may evaporate by Hawking Radiation.
3. Horovitz=Maldacena model – a final state boundary condition at Black Hole singularities – an information may go out from a Black Hole. http://www.arxiv.org/abs/hep-th/0310281

In a very strong gravity close to heavy object we observe time dilation , length contraction and energy increase. Theoretically on the Event Horizon a time should stops , length collapse into zero point and energy increase to infinity – people call it singularity.

Practically is it not possible because of a natural space-time boundary. If there would be an isolated object collapsing inwards – it would be a singularity in the future eternity.

If there is an energy (matter) supply and its mass grows a matter will be collected above a theoretical Event Horizon. The Maximal Energy would be when all the particles move close above an Event Horizon with a speed close of light. This causes a light sphere around an heavy object.

For an outer observer the outer surface of the Black Hole shine bright but from inside is coming strong high redshifted radiation (Radio waves).
Any way the inside sphere is not cut off from en outer observer.

For inner observer – the most farthest space move almost with speed of light and the radiation from this distance is also maximal redshifted.

The matter (energy) is concentrated mostly on the sphere close above a theoretical Event Horizon. We may say a singularity is a sphere, not a point. It seems crazy but as for rotating Black Hole a final singularity is a ring , for a spherical Black Hole should be an empty sphere.

[TravisM]

General Relativity breaks down near the singularity, causing these infinities. We can't model what's happening at the singularity because we'd have to meld Quantum Mechanics with GR (small stuff with lots of gravity.)
So far, we've been unsuccessful...

[Sylwester Kornowski]

There can exist the black holes with respect of the gravitational interactions, with respect of the weak interactions and with respect of the strong interactions. In the Universe there does not exist an elementary structure which could be a black hole with respect of the electrostatic interactions.

Till today there does not exist weighty evidence that there exist the gravitons and gravitational waves. It suggests that maybe the gravity is classical and that maybe a mathematical junction of gravity and quantum mechanics is impossible. Of course there must exist a physical junction between gravity and other types of interactions (such theory exists).

[czeslaw]

A. If in the Black Hole would be a infinite dense singularity the Black Hole would be empty under Event Horizon because the matter is hidden in this singularity. The emision line shows very weak radio wave radiation from the Black Hole centre and strong sychrotron radiation from outer parts of the Black Hole.

B. If the Black Hole holds a final state boundary conditions Mass/Radius=<cc/G we see a strong radio source in Black Hole centre of the redshifted radiation because of time dilation and strong synchrotron radiation from outer parts of the Black Hole.

Comparing the characteristic of the emision we may estimate what is inside a Black Hole , I think.

I am not spectroscopists, may be you know better.

[Mike Best]

I learned, and lecture, that time dilation, mass increase, and decreased length (in the direction of motion) are tied to approaching the speed of light.
Who, of note, is tying these three to black holes?
Inasmuch as I am flexible and can erase or add to past info with my big eraser all I need is someone of stature to propose the idea.

[Mike Best]

How does one become a "senior" member.
I kind of like the "junior" moniker even if I am 72.46

[Halcyon Dayz]

How does one become a "senior" member.

By posting. (50)

[tusenfem]

A. If in the Black Hole would be a infinite dense singularity the Black Hole would be empty under Event Horizon because the matter is hidden in this singularity. The emision line shows very weak radio wave radiation from the Black Hole centre and strong sychrotron radiation from outer parts of the Black Hole.

I really doubt that the emission that you are referring to is coming from the centre of the black hole, that would be physically impossible because nothing can escape from a black hole after is has crossed the horizon or when it is generated inside the horizon.

If all the matter is concentrated in a singular point then, maybe yes, the black hole is empty except for the centre, although we have no real idea what is going on inside of the horizon.

The emission must definitely come from above the horizon or from the accretion disk around the black hole.

[TravisM]

There can exist the black holes with respect of the gravitational interactions, with respect of the weak interactions and with respect of the strong interactions. In the Universe there does not exist an elementary structure which could be a black hole with respect of the electrostatic interactions.

It's well known that White Dwarf stars exist. Electron degeneracy pressure keeps them stable. At a certain mass, this pressure cannot counterballance gravity. You get a Neutron star which then again is held up by neutron degeneracy pressure. At another threshold, even this pressure is overcome by gravity. That's a black hole.

[Sylwester Kornowski]

It is not true because we can destroy a neutron if simultaneously we destroy the antineutron. In particle physics we can destroy only the pair particle-antiparticle and it is the experimental evidence.
There exists idea proposed by A.Sakharov that there can be broken the symmetry between the number of baryons and antibaryons but it is not true (it is my opinion). Of course we observe the asymmetry between created bosons B and anti-B but it results from fact that our World has left internal helicity (see #1, thread 'Before the Big Bang').

[czeslaw]

"Some of the faintest radio sources were found to emit the most X-rays and vice versa - suggesting that two separate mechanisms within each galaxy were generating powerful emissions at opposite extremes of the spectrum. http://www.spaceflightnow.com/news/n0504/04starburst "
"The x-ray, radio and optical fluxes as well as the x-ray spectral shape are consistent with beamed relativistic jet emission from an accreting stellar black hole. If confirmed, this would suggest that the ultraluminous x-ray sources may be stellar-mass rather than intermediate mass black holes. However, interpretation of the source as a jet-producing intermediate-mass black hole cannot be ruled out at this time. http://www.aas.org/publications/baas...ead2003/48.htm "

If the main mass (some mln solar masses) were under an Event Horizon we cant see so much radio emission, I think. The acretion disc emits mainly strong X-rays. Very strong radio emission may sugests a redshift radiation (because of time dilation) from the whole mass of some milions solar masses, not only a gas around.

[Celestial Mechanic]

All those socks that disappear from your dryer! If we could only figure out how they get there, we would then solve one of the most baffling mysteries in the universe!

[czeslaw]

If we only could see -
A. Black Hole has its inner structure (space-time has a final state boundary)
B. Black Hole is empty inside with an infinite dense point singularity - no boundaries.

[Blob]

Hum,
it may have been `infinity ` dense in tee old classic black holes of the 60s, but nowadays ppl regard them to have a certain size.
Some would say they are very very small (ie, 10^-33 or even smaller)
Others would propose that they might be as large as the event horizon.

Either way they do have a size. They are finite.
(a tonne of feathers weights the same as a one tonne Blackhole)

As for structure,
No one knows.
`Every thing moves in a relativistic way at the speed of light, hidden dimensions may become more prominent and effectively become meaningless to us.
Stringtheory proposes that the physics is different to our normal space-time.
The best it can do is to transform the `black hole` into a surface.

[czeslaw]

The recent theories indicate a certain size of the Black Hole singularity, I think too.

'Some of the faintest radio sources were found to emit the most X-rays and vice versa - suggesting that two separate mechanisms within each galaxy were generating powerful emissions at opposite extremes of the spectrum. http://www.spaceflightnow.com/news/n0504/04starburst '

'Astrophysicists have long suspected that the compact source of intense radio emissions is related to what's known as a supermassive black hole, the largest type of black hole and a variety suspected of anchoring many large galaxies. http://www.space.com/scienceastronom...le_010905.html '

'part of this material falls within the event horizon of the black hole, while part of the material is ejected into the radio jet. http://www.astro.lsa.umich.edu/users/mfa '

I think, the radio emission comes from inside of the Black Hole , because this whole object is not under Event Horizon but very close above M/R=<cc/G and the radiation may go out but very redshifted because of the time dilation.

If the mass of the Black Hole would be under Event Horizon there would be no radiation from inside and only weak radio emission from the outer parts of this object.

Do you think is it possible ?