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Credit: UCO/Lick/STScI/M.Perrin et
al
BP Piscium: A Fish out of Water
Oct 15, 2010
Before
the discovery of jetted stars, such
as BP Piscium above, the idea of a
star with a ring around it threaded
by a hot helical filament that
remained coherent for several
light-years would have been
dismissed as impossible.
With only gravity and gas, you can’t get much more than balls of warm hydrogen.
To make a star, the weak force of gravity has to compress the gas beyond the
natural limits that we know of until the pressure initiates a nuclear reaction
that’s not been demonstrated actually to occur. (Decades of building expensive
machinery to replicate this hypothetical process and to produce fusion power
have still to do it.)
That’s just to get an ordinary star with an ordinary power output. To get the
much greater energy of such stars as novas and pulsars, theorists must leave the
garden of natural physics and trek deep into the dungeons of the supernatural:
into the lairs of such speculative hypotheses as neutron stars and black holes,
merging
stars and colliding galaxies.
The jetted stars were found in abundance. So were their big brothers,
jetted
galaxies, with threads that were tens or hundreds of thousands of
light-years long, ending in regions of radio emission larger than the galaxies.
Hot gas, even in a strong gravitational field, tends to dissipate. These threads
didn’t dissipate.
The “donut-on-a-stick” stars were often accompanied by signs of
magnetism—another phenomenon that the gravity-and-gas boys had thought was
impossible in space. Without worrying too much about how the magnetism was
generated, astronomers were happy to let the magnetic field lines twist
themselves into tubes that would confine the gas into the observed filaments. Of
course, magnetism doesn’t affect gas, so they had to admit that the gas was
plasma long enough to keep it in the magnetic tube.
The admission was repudiated before anyone had time to mention the
electrical
properties of plasma. Electricity was a fifth column that threatened
to overthrow the gravity-and-gas citadel: The threads were Birkeland currents
that carried electrical power. They were what generated the magnetism—as the
physics of nature as we know it describes.
X-ray and radio maps of the heavens traced out
lanes
of emission and magnetism connecting stars and galaxies: This was
evidence that the stars and galaxies were strung like streetlights on these
Birkeland currents. Electricity and plasma can be many, many times more
energetic that gravity and gas, and the possibility arose that the cosmos was
powered, not by gravity and gas and supernatural physics, but by electricity and
plasma and the natural
physics that can be studied in a laboratory.
BP Piscium and its visible Birkeland power cable are a pointer to a return to
nature in astronomy.
Mel Acheson
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YouTube video, first glimpses of Episode Two in the "Symbols of an Alien Sky"
series.
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Three ebooks in the Universe Electric series are
now available. Consistently
praised for easily understandable text and exquisite graphics.
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