Message from discussion Thermal imaging of the area near a black hole
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From: "Anon E. Mouse" <agall...@gmail.com>
Subject: Re: Thermal imaging of the area near a black hole
Date: 22 Jun 2012 13:14:53 +0100 (BST)
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Originator: @hydra.herts.ac.uk ([126.96.36.199])
[Moderator's note: My apologies for the delay; this post ended up in
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> The press release does in fact give details of the paper that it's
> based on. You can find all the information you need here:
> and a freely available copy of the paper can be found by going to
> 'arxiv e-print' and then 'PDF'.
> The predictions on the temperature structure of accretion discs go
> back to the work of Shakura and Sunyaev in the 1970s.
> Martin Hardcastle
> School of Physics, Astronomy and Mathematics, University of Hertfordshire, UK
Thank you Martin.
With your assistance I was able to find the paper cited in the Paper
of interest. It is quite detailed. From this source I was able to
confirm that the black holes are indeed modeled and observed to be
extremely hot black body sources and I found that the rather flat blue
spectra is believed to be the result of electron scattering in the
outer layers of the accretion.
Non-LTE Models and Theoretical Spectra of Accretion Disks in Active
Galactic Nuclei. III. Integrated Spectra for Hydrogen-Helium Disks
The peak temperatures predicted by some of these models are north of
36kK. Quite hot indeed. The radiation energies of the disks themselves
are not enough to achieve or sustain these temps and the model paper
cites gravitational radiation as the heat source.
If the space-time field lines of the hole itself are spatially closed,
then the approach to the hole would become a tachyon vector field
which matches up with the observed disk kinetics, Increased kinetics
due to radiation pressure.
However, if the hole itself is viewed as a enormously powerful
compressor, then the accumulate kinetic energy would be similarly
large. Either this energy is missing as entropy, an non LTE effect, or
it escapes as heat. I personally think the evidence of high
temperature around black holes indicates thermal radiation (black-
body) behaves differently than other photon type energy. I see no
other viable solution. In terms of standard EFE theory there should be
closed field lines in the Stress-Energy tensor term of approximately
equal magnitude to the metric and Rikki tensor combined and this
energy should be just almost as invisible as the mass or light.
The thermal tunneling effect I mentioned previously can only work
through the kinetics of the disk and not all black holes are quasars.
They are not all Kerr type, and so for these there is no obvious to me
means by which a black hole could express its heat by interaction with
I apologize for the speculative nature of this inference.