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Alternative Cosmology Group Newsletter - March 2007
Posted 3/13/2007
The editor apologizes for missing February, but we are
combining months to get back on schedule.
Two papers show that MOND remains the liveliest area of
controversy among alternative cosmology ideas.
The first reviews attempts to put MOND on a sound theoretical
basis and the second is a detailed rebuttal to the widely
publicized claim that the “bullet” clusters confirm dark matter.
It instead claims that MOND can completely account for the
observations.
Also, Sky and Telescope, the leading US amateur astronomy
magazine, features an article on MOND, the first coverage in the
magazine of alternative cosmology for years. (Not
available online.)
The modified Newtonian dynamics-MOND-and its implications for
new physics
Authors: Jacob D. Bekenstein
http://lanl.arxiv.org/abs/astro-ph/0701848
The Bullet Cluster 1E0657-558 evidence shows Modified Gravity in
the absence of Dark Matter
Authors: J. R. Brownstein, J. W. Moffat
http://lanl.arxiv.org/abs/astro-ph/0702146
The conventional explanation of quasars is of course that
they are primarily gravitational phenomena, black holes.
However two papers indicate the crucial role played by magnetic
fields in these objects.
The first shows similarity between purely electromagnetic
phenomena such as solar flares and quasars, while the second
indicates that GRB observations may require a magnetically
confined outflow.
(The editor published a fully electromagnetic model of a quasar
many years ago –available at
http://www.bigbangneverhappened.org/ ,click document downloads,
then Magnetic Self-Compression)
Similar phenomena at different scales: Black Holes, the Sun,
Gamma-ray Bursts, Supernovae, Galaxies and Galaxy Clusters
Authors: Shuang Nan Zhang
http://lanl.arxiv.org/abs/astro-ph/0702246
The nature of the outflow in gamma-ray bursts
Authors: P. Kumar, E. McMahon (University of Texas, Austin), A.
Panaitescu (LANL), R. Willingale, P. O'Brien (Leicester), D.
Burrows (Penn State), J. Cummings, N. Gehrels, S. Holland (NASA
GSFC), S. B. Pandey (Mullard), D. Vanden Berk (Penn State), S.
Zane (Mullard)
http://lanl.arxiv.org/abs/astro-ph/0702319
This paper claims 2-sigma results for variability of the fine
structure constant.
A new measure of Delta alpha/alpha at redshift z = 1.84 from
very high resolution spectra of Q1101-264
Authors: S.A. Levshakov, P. Molaro, S. Lopez, S. D'Odorico, M.
Centurion, P. Bonifacio, I.I. Agafonova, D. Reimers
http://lanl.arxiv.org/abs/astro-ph/0703042
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