Some redshift of many QSOs occurs near the QSO (Sisir Roy et al.)

A paper listed in the Alternative Cosmology Group Newsletter:

http://www.cosmology.info/newsletter/2007.01.htm

Dynamic Multiple Scattering, Frequency Shift and Possible Effects on
Quasar Astronomy
Sisir Roy, Malabika Roy, Joydip Ghosh, Menas Kafatos 2007-01-03
http://arxiv.org/abs/astro-ph/0701071

has an interesting diagram (Fig 1b and Fig 3) mapping redshifts and
apparent magnitudes (light flux observed on Earth) with a logarithmic
scale for redshift. Fig 3 is corrupted in the paper. A corrected
version sent to me by Prof. Roy is is on my page:

http://astroneu.com/simmering/#Roy-et-al-2007

This shows a clear diagonal baseline attributable to the Hubble
relation, which Roy and colleagues see as being caused by the
expansion
of the Universe. Quasars with redshifts above that baseline are
argued
to have excess redshift for their apparent magnitude. Basically, this
means that all these quasars have about the same absolute magnitude
(and
that there is not much variable absorption between them and Earth),
that
their distance can be predicted by their apparent magnitude, and that
quite a lot of them have excess redshift which must be occurring
either
inside the quasar itself, or in the space around it.

Roy and colleagues. propose the Wolf Effect (in generally thin,
turbulent, molecular clouds, I think) as the cause of this extra,
localised, redshift - a process they call Dynamic Multiple Scattering.
http://en.wikipedia.org/wiki/Wolf_effect

In my "plasma redshift" hypothesis, there is no expansion (or at least
nothing like the BBT rate of expansion) and all the redshift is caused
by my proposed mechanism. The baseline is due to the rate of redshift
in the void IGM, which I predict is at about the same low density, but
very high temperature (heated by the redshift of starlight and perhaps
the CMB), in all the voids. I propose the voids corral the galaxies
into their sheets and threads of clusters, just as air bubbles press
soapy water into the same shapes.

The high and variable local redshifts for each quasar, in my
hypothesis,
occur in somewhat denser plasma near the quasar. I don't think these
quasars are necessarily in galaxies - maybe they are just black holes
sucking in the IGM. Clearly some black-hole systems are in galaxies.
Maybe the unresolvably small angular dimensions of quasars point to
them
being much smaller than a galaxy, especially when many of them are
closer than the BBT's redshift-distance relationship predicts.

In my hypothesis, the redshift occurs in plasma - mainly protons,
electrons and helium nuclei - although in principle I think it could
also occur in neutral gas at sufficiently low densities. My
hypothesis
is incompatible with the photon theory of emr as far as I know. It is
based on ripples of emr having shorter coherence length than the
average
inter-particle spacing of the plasma they travel through, and so being
slowed by each particle after travelling at full light speed in the
space
between them.

A cloud of such particles would have 1.0 refractive index. So
would
one particle, since it is a cloud of 0 dimensions.

Temporary slowing of the ripple involves temporary coupling of its
momentum to the particle. I envisage some deposition of energy and
momentum, and probably redshift of the ripple of emr which emerges.

Such a mechanism would be a good explanation of the heating and
acceleration of the solar corona and wind, which is unexplained by
current magnetic wave theories:

http://astroneu.com/plasma-redshift-1/#Cranmer

My hypothesis is in conflict with the Quantum Theory of Light and the
Big Bang Theory - but these are theories and should be regarded as
incomplete, since they can't explain the spectacular deposition of
energy and momentum in the solar corona and wind.

If it can be shown that the narrow 12cm hydrogen line from distant,
high
redshift, sources is redshifted exactly the same amount as the visible
light from those sources, then this would require a major revision or
abandonment of my hypothesis. I assume that the coherence length ( =3D
ripple length) of such narrow, long wavelength, signals exceeds the
average inter-particle spacing of the void IGM, which I assume is in
the
range of a metre or so.

Another interesting paper, also highlighted in the ACG Newsletter, is:

An Abrupt Upper Envelope Cut-off in the Distribution of Angular
Motions in Quasar Jets is Compatible in all Respects with a Simple
Non-Relativistic Ejection Model
M.B. Bell, D.R McDiarmid Herzberg Institute for Astrophysics,
National
Research Council of Canada, Ottawa 2007-01-04
http://arxiv.org/abs/astro-ph/0701093

From the abstract:

A remarkable correlation is found in radio-loud quasars and BLLacs
when the directly observed angular motions, =B5, of features ejected
in
the innermost regions of their jets are plotted on logarithmic
scales
versus the directly observed 15 GHz ux density, S, of their central
engines . . . In this model the redshift of quasars cannot be a
reliable indication of their distance.

- Robin http://astroneu.com Melbourne Australia