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Supernova remnant RJX1713.7-3946 with
contours indicating gamma ray production.
Credit: JAXA/HESS Takaaki Tanaka
May 13, 2008
Cosmic Ray Guns
The "shock fronts" of exploding stars passing
through gas clouds are said to create cosmic rays. Could
electric discharges be a better explanation?
In the November
4, 2004, issue of
Nature,
NASA and a joint Japanese research team announced the
discovery of gamma rays from supernova remnant
RXJ1713.7-3946. The data introduced the
first ever image created by analyzing the flashes of
light produced by energetic photons impacting Earth's
atmosphere.
The High Energy Stereoscopic System (HESS), a four
telescope array in Namibia, detected Cerenkov radiation
resulting from gamma ray collisions with nitrogen and oxygen
atoms at altitudes of more than 20 kilometers.
When
electrically charged particles move through space, they
generate electromagnetic radiation (EMR) that is carried by
photons. Should the particles accelerate to a high enough
velocity, they will emit frequencies that we call gamma
rays. In the supernova remnant cloud, ions are being
accelerated so rapidly that they exceed the speed of light
through the gas, leaving their high-energy photons (gamma
rays) behind. This creates a magnetic "shockwave" in the gas
that manifests itself as flashes of blue light called
Cerenkov radiation.
Now, with
new information provided by the
Chandra X-Ray Observatory and the
Suzaku X-ray Satellite, the high-energy photons are
theorized to be the signature of cosmic rays coming from the
same sources.
Cosmic rays are
ionized particles from fragmented atoms, leaving free
electrons and positively charged nuclei. The majority of
cosmic rays are single protons, but nuclei as heavy as
uranium have been detected. As standard theory states, heavy
particles are accelerated to relativistic velocities by
unknown forces and then whipped out into the galaxy like a
shotgun blast, scattering in every direction. Most cosmic
rays are at low energy levels – less than one billion
electron volts - so when they hit atoms in Earth's
atmosphere they initiate small
secondary showers of particles and are absorbed before
they reach the ground.
RXJ1713.7-3946
was chosen for observation by the Japanese team because of
the historical data from other resources, including the
Spitzer Space Telescope's infrared instruments, and because
of the gamma ray discovery by HESS. Using Chandra's much
higher resolution, isolated points of x-ray emission have
also been seen within the cloud that rise in intensity and
then fade away rather quickly. The magnetic fields have been
calculated to be stronger than the current theory predicts.
According to
Yasunobu Uchiyama of the Japan Aerospace Exploration Agency
(JAXA):
"Magnetic field
strength lies at the heart of cosmic-ray acceleration
theory. Previous estimates of magnetic fields in supernova
remnants were based on indirect arguments. In our study, we
determine the magnetic field in a direct manner."
Although the
mention of magnetic fields and ionized gas has entered into
the discussion of cosmic rays and their associated EMR, the
connection between the theories and the data is tenuous. The
theory does not identify the strong electric fields in
sheaths around stars as the cause of cosmic ray
acceleration.Rather the cause is said to be the compressive
effect of "shockwaves bouncing particles around like
pinballs" until they are sped up to their incredible
velocities.
In the Electric
Universe, there is another mechanism for cosmic ray
production and that is the "exploding double layer". Irving
Langmuir first described a double layer in 1929. It forms
when electric current flows through plasma and is treated as
a circuit element that dissipates energy. The flowing
current multiplied by the voltage across the double layer
determines the rate of dissipation.
Hannes Alfvén
described a double layer as, "... a plasma formation by
which a plasma - in the physical meaning of this word -
protects itself from the environment. It is analogous to a
cell wall by which a plasma - in the biological meaning of
this word - protects itself from the environment."
At times, a
double layer may actually cutoff the current flow in the
circuit causing a catastrophic rise in voltage across the
double layer. The powerful energy release of the "exploding
double layer" is sometimes observed in power transmission
switchyards when a circuit breaker is opened incorrectly.
Alfvén, in a
NASA sponsored conference on double layers in astrophysics
in 1986 (NASA CP 2469) said:
"Double layers
in space should be classified as a new type of celestial
object (one example is the double radio sources). It is
tentatively suggested that x-ray and gamma ray bursts may be
due to exploding double layers. In solar flares, DL's with
voltages of 109 V or even more may occur, and in galactic
phenomena, we may have voltages that are several orders of
magnitude larger. Examples are given of possible galactic DL
voltage differences of 10'2 V. This means that by a
straightforward extrapolation of what we know from our
cosmic neighborhood, we can derive acceleration mechanisms
which brings us up in the energy region of cosmic
radiation."
Thornhill, in a
recent IEEE paper suggested (following Alfvén's prediction
of double layers occurring above the Sun's poles) that the
two smaller axial rings of Supernova 1987a are actually
glowing double layer phenomena. In other words, supernovae
are a catastrophic stellar electrical discharge. A hallmark
of double layers is their variability, or flickering, which
would match the observation that "isolated points of x-ray
emission have also been seen within the cloud that rise in
intensity and then fade away rather quickly."
Meanwhile
astrophysicists, untrained in the physics of double layers,
treat supernovae remnants as a problem in fluid dynamics,
using mechanical shockwaves to provide the observed cosmic
ray energies. It is an approach that Alfvén warned, more
than half a century ago, is doomed to fail.
Hopefully,
future missions will uncover more evidence that points
to electricity in space as the cause for so many of the
effects we see. Plasma is the first state of matter and
makes up more than 99.99% of all that we observe in the
universe. It is far past time that scientists actually
look at what they see with critical eyes.
By Stephen smith
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