- #1
BitWiz
Gold Member
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Much of what people say about the vicinity of black holes doesn't seem to make sense.
For instance, it seems to be impossible for a black hole to grow by "ingestion" by scooping up matter around it or in its path, at least in the traditional sense. Gravitational time dilation takes care of that -- no particle having mass will ever reach the event horizon, much less travel through it, and because of the asymptotic partitioning of space-time at the horizon, I don't think that even a photon can penetrate a black hole as it would have to raise itself to an infinite frequency. So an event horizon seems to be impenetrable -- from either direction.
However, it seems that a black hole can ingest matter by growing. If a massive object approaches a black hole, and comes close enough such that the two combined masses (or portions of a mass) now fit within their paired Schwarzschild radius, a new shell-like event horizon will form behind the intruding mass, and in the process, any other matter around the original black hole is now engulfed within the new expanded radius.
For instance, if a neutron star of about two solar masses approaches a black hole containing about 60 million solar masses such that its entirety is within about 6 kilometers of the event horizon, a new event horizon will form behind it, and in the process engulf enough space to contain the volume of the Sun (if my math is correct).
Thus the structure of black holes could be a series of horizon shells around the original dense core, each one partitioning its contents out of the accessible universe, but also partitioning themselves from each other. The internal structure of each shell and its contents would have the same properties as it did before the shell was formed, but would be inaccessible except by its own contents.
In an another example, two black holes could be rotating around each other, but their combined mass would cause a new event horizon to form some distance away, appearing externally as a single entity, but internally, there would still be two black holes and the matter orbiting their center(s) of gravity.
In the collapse of a super nova core or a neutron star > 3 solar masses, the resulting black hole does not have to form all at once, but could be a cascade of event horizons, each outer partition seeing any inner partition(s) as a black hole, and any outer partitions as infinite space-time(?). This could solve the infinite mass paradox -- "time" would take the place of the Pauli exclusion principal.
As far as the oft told story that passengers in a rocket approching and entering an event horizon would never notice that they had sailed past the end of time -- in years, an infinite number raised to the infinite power an infinite number of times -- pretty darned unlikely I would think. Instead, one of two things might happen: 1) they could eventually be engulfed by a new event horizon and seem to appear in a new universe that they don't recognize except for nearby objects; and/or 2) if Mr. Hawking is correct, the black hole, having run out of material with which to grow, and over a vast amount of time (for a large object), might evaporate as the rocket approached it; to the passengers, it would be as if the black hole became smaller as they were about to touch it, disappearing entirely as they passed through its center -- several quadrillion years in the future. Good luck finding your way home after that.
If Mr. Hawking is correct, and the shell hypothesis is also correct, then we would have Hawking radiation leaking from shell to shell, greatly increasing the time it takes for a black hole to evaporate, but also providing a way for inner shells to become visible once again, either externally or internally. I think this would solve the "missing data" conundrum as well.
Comments please?
Chris
For instance, it seems to be impossible for a black hole to grow by "ingestion" by scooping up matter around it or in its path, at least in the traditional sense. Gravitational time dilation takes care of that -- no particle having mass will ever reach the event horizon, much less travel through it, and because of the asymptotic partitioning of space-time at the horizon, I don't think that even a photon can penetrate a black hole as it would have to raise itself to an infinite frequency. So an event horizon seems to be impenetrable -- from either direction.
However, it seems that a black hole can ingest matter by growing. If a massive object approaches a black hole, and comes close enough such that the two combined masses (or portions of a mass) now fit within their paired Schwarzschild radius, a new shell-like event horizon will form behind the intruding mass, and in the process, any other matter around the original black hole is now engulfed within the new expanded radius.
For instance, if a neutron star of about two solar masses approaches a black hole containing about 60 million solar masses such that its entirety is within about 6 kilometers of the event horizon, a new event horizon will form behind it, and in the process engulf enough space to contain the volume of the Sun (if my math is correct).
Thus the structure of black holes could be a series of horizon shells around the original dense core, each one partitioning its contents out of the accessible universe, but also partitioning themselves from each other. The internal structure of each shell and its contents would have the same properties as it did before the shell was formed, but would be inaccessible except by its own contents.
In an another example, two black holes could be rotating around each other, but their combined mass would cause a new event horizon to form some distance away, appearing externally as a single entity, but internally, there would still be two black holes and the matter orbiting their center(s) of gravity.
In the collapse of a super nova core or a neutron star > 3 solar masses, the resulting black hole does not have to form all at once, but could be a cascade of event horizons, each outer partition seeing any inner partition(s) as a black hole, and any outer partitions as infinite space-time(?). This could solve the infinite mass paradox -- "time" would take the place of the Pauli exclusion principal.
As far as the oft told story that passengers in a rocket approching and entering an event horizon would never notice that they had sailed past the end of time -- in years, an infinite number raised to the infinite power an infinite number of times -- pretty darned unlikely I would think. Instead, one of two things might happen: 1) they could eventually be engulfed by a new event horizon and seem to appear in a new universe that they don't recognize except for nearby objects; and/or 2) if Mr. Hawking is correct, the black hole, having run out of material with which to grow, and over a vast amount of time (for a large object), might evaporate as the rocket approached it; to the passengers, it would be as if the black hole became smaller as they were about to touch it, disappearing entirely as they passed through its center -- several quadrillion years in the future. Good luck finding your way home after that.
If Mr. Hawking is correct, and the shell hypothesis is also correct, then we would have Hawking radiation leaking from shell to shell, greatly increasing the time it takes for a black hole to evaporate, but also providing a way for inner shells to become visible once again, either externally or internally. I think this would solve the "missing data" conundrum as well.
Comments please?
Chris