Difference between revisions of "Cosmology Notes"
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=== Galactic rotation === | === Galactic rotation === | ||
| − | Computer and laboratory simulations show that at least the ISM (if not the stars themselves) could be rotating as a plasma filament pair constrained by MHD, producing the observed flat rotation profile.<ref>Bostick, W. H., [http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1958IAUS....6...87B "Experimental Study of Plasmoids"], Electromagnetic Phenomena in Cosmical Physics, Proceedings from IAU Symposium no. 6, ed. Lehnert, B., p.87. Cambridge University Press, 1958.</ref><ref>Peratt, A. L.; Green, J. C., [http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1983Ap%26SS..91...19P "On the evolution of interacting, magnetized, galactic plasmas"]. Astrophysics and Space Science '''91''':1 p19-33, March 1983.</ref> These simulations also produce a time progression through the observed galactic spiral and barred spiral morphologies, and may also explain the observed independence of the motions of the stars from that of the spiral arms, if only someone would run the simulations again. | + | Computer and laboratory simulations show that at least the ISM (if not the stars themselves) could be rotating as a plasma filament pair constrained by MHD, producing the observed flat rotation profile.<ref>Bostick, W. H., [http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1958IAUS....6...87B "Experimental Study of Plasmoids"], Electromagnetic Phenomena in Cosmical Physics, Proceedings from IAU Symposium no. 6, ed. Lehnert, B., p.87. Cambridge University Press, 1958.</ref><ref>Peratt, A. L.; Green, J. C., [http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1983Ap%26SS..91...19P "On the evolution of interacting, magnetized, galactic plasmas"]. Astrophysics and Space Science '''91''':1 p19-33, March 1983.</ref> These simulations also produce a time progression through the observed galactic spiral and barred spiral morphologies, and may also explain the observed independence of the motions of the stars from that of the spiral arms, if only someone would run the simulations again. However this substitutes ''"we need dark matter to make it work"'' with ''"where does the colossal current driving the filaments come from?"'' |
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 02:47, 31 August 2011
John Moffat
Gravitational constant G varies with spacetime as new tensor in MOG (Modified Gravity Theory). No dark matter or dark energy. [1]
Galactic rotation
Computer and laboratory simulations show that at least the ISM (if not the stars themselves) could be rotating as a plasma filament pair constrained by MHD, producing the observed flat rotation profile.[2][3] These simulations also produce a time progression through the observed galactic spiral and barred spiral morphologies, and may also explain the observed independence of the motions of the stars from that of the spiral arms, if only someone would run the simulations again. However this substitutes "we need dark matter to make it work" with "where does the colossal current driving the filaments come from?"
References
- ↑ Moffat, J. W. "Reinventing Gravity". 288p hardcover, 24cm. Smithsonian, 2008.
- ↑ Bostick, W. H., "Experimental Study of Plasmoids", Electromagnetic Phenomena in Cosmical Physics, Proceedings from IAU Symposium no. 6, ed. Lehnert, B., p.87. Cambridge University Press, 1958.
- ↑ Peratt, A. L.; Green, J. C., "On the evolution of interacting, magnetized, galactic plasmas". Astrophysics and Space Science 91:1 p19-33, March 1983.