Plasma cosmology

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Plasma cosmology is a non-standard cosmology whose central postulate is that the dynamics of ionized gases and plasmas play important, if not dominant, roles in the physics of the universe beyond the Solar System.[2][3][4] This is contrary to the general consensus by cosmologists and astrophysicists which strongly supports that astronomical bodies and structures in the universe are mostly influenced by gravity, Einstein's theory of general relativity, and quantum mechanics. These can be used to explain the origin, structure and evolution of the universe on cosmic scales. As of 2016, the vast majority of researchers openly reject plasma cosmology because it does not match modern observations of astrophysical phenomena or accepted cosmological theory.

Some general concepts about plasma cosmology originated with Hannes Alfvén, who won the 1970 Nobel Prize in Physics for his other (unrelated) work in magnetohydrodynamics (MHD).[5][6] Alfvén proposed the use of plasma scaling to extrapolate the results of laboratory experiments and space plasma physics observations and scale them over many orders-of-magnitude up to the largest observable objects in the universe (see box[1]).


Alfvén-Klein cosmology[edit]

In the 1960s, the theory behind plasma cosmology was introduced by Alfvén, Oskar Klein and Carl-Gunne Fälthammar,[7][8] and Alfvén's 1966 book Worlds-Antiworlds.[9] Klein in 1971 extended Alfvén's Worlds-Antiworlds proposals and developed the "Alfvén-Klein model" of the universe,[10] or metagalaxy, an earlier term to distinguish between the universe and the Milky Way galaxy. In this Alfvén-Klein cosmology, sometimes called Klein-Alfvén cosmology, the universe is made up of equal amounts of matter and antimatter with the boundaries between the regions of matter and antimatter being delineated by cosmic electromagnetic fields formed by double layers, thin regions comprising two parallel layers with opposite electrical charge. Interaction between these boundary regions would generate radiation, and this would form the plasma. Alfvén introduced the term ambiplasma for a plasma made up of matter and antimatter and the double layers are thus formed of ambiplasma. According to Alfvén, such an ambiplasma would be relatively long-lived as the component particles and antiparticles would be too hot and too low-density to annihilate each other rapidly. The double layers will act to repel clouds of opposite type, but combine clouds of the same type, creating ever-larger regions of matter and antimatter. The idea of ambiplasma was developed further into the forms of heavy ambiplasma (protons-antiprotons) and light ambiplasma (electrons-positrons).[9]



Plasma cosmology and the study of galaxies[edit]



For example, Peratt proposed that the mainstream approach to galactic dynamics which relied on gravitational modeling of stars and gas in galaxies with the addition of dark matter was overlooking a possibly major contribution from plasma physics. He mentions laboratory experiments of Winston H. Bostick in the 1950s that created plasma discharges that looked like galaxies.[26][27] Perrat conducted computer simulations of colliding plasma clouds that he reported also mimicked the shape of galaxies.[28] Peratt proposed that galaxies formed due to plasma filaments joining in a z-pinch, the filaments starting 300,000 light years apart and carrying Birkeland currents of 1018 amperes.[29][30] Peratt also reported simulations he did showing emerging jets of material from the central buffer region that he compared to quasars and active galactic nuclei occurring without supermassive black holes. Peratt proposed a sequence for galaxy evolution: "the transition of double radio galaxies to radioquasars to radioquiet QSO's to peculiar and Seyfert galaxies, finally ending in spiral galaxies".[31] He also reported that flat galaxy rotation curves were simulated without dark matter.[29] At the same time Eric Lerner, an independent plasma researcher and supporter of Peratt's ideas, proposed a plasma model for quasars based on a dense plasma focus.[32]

As an IEEE fellow of the IEEE Nuclear and Plasma Sciences Society and guest editor of the journal Transactions on Plasma Science, Peratt supported the publication of a number of special issues dedicated to plasma cosmology, the last one appearing in 2007.[33] Additionally, in 1991, Lerner wrote a popular-level book supporting plasma cosmology titled The Big Bang Never Happened.[29]

Comparison to mainstream astrophysics[edit]

Standard astronomical modeling and theories attempt to incorporate all known physics into descriptions and explanations of observed phenomena, with gravity playing a dominant role on the largest scales as well as in celestial mechanics and dynamics. To that end, both Keplerian orbits and Einstein's general theory of relativity are generally used as the underlying frameworks for modeling astrophysical systems and structure formation, while high-energy astronomy and particle physics in cosmology additionally appeal to electromagnetic processes including plasma physics and radiative transfer to explain relatively small scale energetic processes observed in the x-rays and gamma rays. In conventional cosmology, plasma physics is not considered to be the dominant force on most large-scale phenomena, although much of the matter in the universe is thought to be ionised or exist as plasma. (See astrophysical plasma for more.)

Proponents of plasma cosmology claim electrodynamics is as important as gravity in explaining the structure of the universe, and speculate that it provides an alternative explanation for the evolution of galaxies[31] and the initial collapse of interstellar clouds.[19] In particular plasma cosmology is claimed to provide an alternative explanation for the flat rotation curves of spiral galaxies and to do away with the need for dark matter in galaxies and with the need for supermassive black holes in galaxy centres to power quasars and active galactic nuclei.[30][31] However, theoretical analysis shows that "many scenarios for the generation of seed magnetic fields, which rely on the survival and sustainability of currents at early times [of the universe are disfavored]",[20] i.e. Birkeland currents of the magnitude needed (1018 amps over scales of megaparsecs) for galaxy formation do not exist.[34] Additionally, many of the issues that were mysterious in the 1980s and 1990s, including discrepancies relating to the cosmic microwave background and the nature of quasars, have been solved with more evidence that, in detail, provides a distance and time scale for the universe. Plasma cosmology supporters therefore dispute the interpretations of evidence for the Big Bang, the time evolution of the cosmos, and even the expanding universe; their proposals are essentially outside anything considered even plausible in mainstream astrophysics and cosmology.

Some of the places where plasma cosmology supporters are most at odds with standard explanations include the need for their models to have light element production without Big Bang nucleosynthesis, which, in the context of Alfvén-Klein cosmology, has been shown to produce excessive x-rays and gamma rays beyond that observed.[35][36] Plasma cosmology proponents have made further proposals to explain light element abundances, but the attendant issues have not been fully addressed.[37] In 1995 Eric Lerner published his alternative explanation for the cosmic microwave background radiation (CMB).[38] He argued that his model explained the fidelity of the CMB spectrum to that of a black body and the low level of anisotropies found, even while the level of isotropy at 1:105 is not accounted for to that precision by any alternative models. Additionally, the sensitivity and resolution of the measurement of the CMB anisotropies was greatly advanced by WMAP and the Planck satellite and the statistics of the signal were so in line with the predictions of the Big Bang model, that the CMB has been heralded as a major confirmation of the Big Bang model to the detriment of alternatives.[39] The acoustic peaks in the early universe are fit with high accuracy by the predictions of the Big Bang model, and, to date, there has never been an attempt to explain the detailed spectrum of the anisotropies within the framework of plasma cosmology or any other alternative cosmological model.

Further reading[edit]

References and notes[edit]

  1. ^ a b Alfvén, Hannes (1983). "On hierarchical cosmology". Astrophysics and Space Science 89 (2): 313–324. Bibcode:1983Ap&SS..89..313A. doi:10.1007/bf00655984. 
  2. ^ a b Anthony L. Peratt (February 1992). "Plasma Cosmology" (PDF). Sky & Telescope. Retrieved 26 May 2012. 
  4. ^ a b Alfven, Hannes O. G. (1990). "Cosmology in the plasma universe - an introductory exposition". IEEE Transactions on Plasma Science 18: 5–10. doi:10.1109/27.45495. 
  5. ^ His MHD research found that magnetic fields can induce currents in a moving conductive fluid, which in turn creates forces on the fluid and also changes the magnetic field itself.
  6. ^ Helge S. Kragh, Cosmology and Controversy: The Historical Development of Two Theories of the Universe, 1996 Princeton University Press, 488 pages, ISBN 0-691-00546-X (pp.482-483)
  7. ^ H. Alfvén, O. Klein (1963). "Matter-Antimatter Annihilation and Cosmology". Arkiv Fysik 23: 187–194. 
  8. ^ H. Alfvén and C.-G. Falthammar (1963). Cosmic electrodynamics. Oxford: Clarendon Press. 
  9. ^ a b H. Alfvén (1966). Worlds-antiworlds: antimatter in cosmology. Freeman. 
  10. ^ Klein, O. (1971). "Arguments concerning relativity and cosmology". Science 171: 339. Bibcode:1971Sci...171..339K. doi:10.1126/science.171.3969.339. 
  11. ^ Alfvén, Hannes (1988). "Has the Universe an Origin". Trita-EPP 7: 6. 
  12. ^ Peratt, Anthony L. (1995). "Introduction to Plasma Astrophysics and Cosmology". Astrophysics and Space Science 227: 3–11. Bibcode:1995Ap&SS.227....3P. doi:10.1007/978-94-011-0405-0_1. : "issues now a hundred years old were debated including plasma cosmology's traditional refusal to claim any knowledge about an 'origin' of the universe (e.g., Alfvén, 1988)"
  13. ^ Alfvén, Hannes (1992). "Cosmology: Myth or Science?". IEEE Transactions on Plasma Science 20 (6): 590–600. Bibcode:1992ITPS...20..590A. doi:10.1109/27.199498. 
  14. ^ Alfvén, H. (March 1984). "Cosmology - Myth or science?". Journal of Astrophysics and Astronomy 5: 79–98. Bibcode:1984JApA....5...79A. doi:10.1007/BF02714974. ISSN 0250-6335. 
  15. ^ Hannes Alfvén, Cosmic plasma. Taylor & Francis US, 1981,IV.10.3.2, p.109. "Double layers may also produce extremely high energies. This is known to take place in solar flares, where they generate solar cosmic rays up to 109 to 1010 eV."
  16. ^ Alfvén, H. (1986) "Double layers and circuits in astrophysics" IEEE Transactions on Plasma Science vol. PS-14, Dec. 1986, p. 779-793. Based on the NASA sponsored conference "Double Layers in Astrophysics" (1986)
  17. ^ P. J. E. Peebles, Principles of Physical Cosmology, (1993) Princeton University Press, p. 207, ISBN 978-0-691-07428-3
  21. ^ Alfvén, H. (1986). "Model of the Plasma Universe" (PDF). IEEE Trans. Plasma Sci. PS-14. 
  22. ^ a b A. L. Peratt, Plasma Cosmology: Part I, Interpretations of a Visible Universe, World & I, vol. 8, pp. 294-301, August 1989. [1]
  23. ^ a b A. L. Peratt, Plasma Cosmology:Part II, The Universe is a Sea of Electrically Charged Particles, World & I, vol. 9, pp. 306-317, September 1989 .[2]
  25. ^ Peratt, A. L. (1995). "Introduction to Plasma Astrophysics and Cosmology" (PDF). Astrophys. Space Sci. 227: 3–11. doi:10.1007/bf00678062. 
  26. ^ A. Peratt (1986). "Evolution of the plasma universe. I - Double radio galaxies, quasars, and extragalactic jets" (PDF). IEEE Trans. on Plasma Science. PS-14: 639–660. ISSN 0093-3813. 
  27. ^ Bostick, W. H. (1986). "What laboratory-produced plasma structures can contribute to the understanding of cosmic structures both large and small". IEEE Transactions on Plasma Science. PS-14: 703–717. Bibcode:1986ITPS...14..703B. 
  28. ^ AL Peratt, J Green and D Nielson (20 June 1980). "Evolution of Colliding Plasmas". Physical Review Letters 44: 1767–1770. Bibcode:1980PhRvL..44.1767P. doi:10.1103/PhysRevLett.44.1767. 
  29. ^ a b c E. J. Lerner (1991). The Big Bang Never Happened. New York and Toronto: Random House. ISBN 0-8129-1853-3. 
  30. ^ a b AL Peratt and J Green (1983). "On the Evolution of Interacting, Magnetized, Galactic Plasmas". Astrophysics and Space Science 91: 19–33. Bibcode:1983Ap&SS..91...19P. doi:10.1007/BF00650210. 
  31. ^ a b c A. Peratt (1986). "Evolution of the Plasma Universe: II. The Formation of Systems of Galaxies" (PDF). IEEE Trans. on Plasma Science. PS-14: 763–778. ISSN 0093-3813. 
  32. ^ E.J. Lerner (1986). "Magnetic Self‑Compression in Laboratory Plasma, Quasars and Radio Galaxies". Laser and Particle Beams. 4 part 2: 193‑222. Bibcode:1986LPB.....4..193L. doi:10.1017/S0263034600001750. 
  34. ^ Colafrancesco, S.; Giordano, F. (2006). "The impact of magnetic field on the cluster M - T relation". Astronomy and Astrophysics 454 (3): L131–134. Bibcode:2006A&A...454L.131C. doi:10.1051/0004-6361:20065404.  recount: "Numerical simulations have shown that the wide-scale magnetic fields in massive clusters produce variations of the cluster mass at the level of ~ 5 − 10% of their unmagnetized value ... Such variations are not expected to produce strong variations in the relative [mass-temperature] relation for massive clusters."
  35. ^ "Big Bang Photosynthesis and Pregalactic Nucleosynthesis of Light Elements". Astrophysical Journal 293: L53–L57. 1985. Bibcode:1985ApJ...293L..53A. 
  36. ^ Epstein; et al. (1976). "The origin of deuterium". Nature 263: 198–202. doi:10.1038/263198a0.  point out that if proton fluxes with energies greater than 500 MeV were intense enough to produce the observed levels of deuterium, they would also produce about 1000 times more gamma rays than are observed.
  37. ^ Ref. 10 in "Galactic Model of Element Formation" (Lerner, IEEE Trans. Plasma Science Vol. 17, No. 2, April 1989 [3]) is J.Audouze and J.Silk, "Pregalactic Synthesis of Deuterium" in Proc. ESO Workshop on "Primordial Helium", 1983, pp. 71-75 [4] Lerner includes a paragraph on "Gamma Rays from D Production" in which he claims that the expected gamma ray level is consistent with the observations. He cites neither Audouze nor Epstein in this context, and does not explain why his result contradicts theirs.
  38. ^ Lerner, Eric (1995). "Intergalactic Radio Absorption and the COBE Data" (PDF). Astrophysics and Space Science 227: 61–81. Bibcode:1995Ap&SS.227...61L. doi:10.1007/bf00678067. 
  39. ^ Spergel, D. N.; et al. (2003). "(WMAP collaboration), "First year Wilkinson Microwave Anisotropy Probe (WMAP) observations: Determination of cosmological parameters". Astrophys. J. Suppl 148: 175. arXiv:astro-ph/0302209. Bibcode:2003ApJS..148..175S. doi:10.1086/377226. 

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