SETI public: Alternate views of the Universe

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Nonlinear Sciences, abstract
nlin.PS/0511040

From: Evgeny Novikov [view email]

Date (v1): Sun, 20 Nov 2005 19:40:05 GMT (4kb)
Date (revised v2): Fri, 2 Dec 2005 20:38:20 GMT (4kb)
Date (revised v3): Mon, 19 Dec 2005 21:07:33 GMT (5kb)

Distributed Sources, Accelerated Universe, Consciousness and Quantum
Entanglement

Authors: E. A. Novikov

Comments: 5 pages

Subj-class: Pattern Formation and Solitons; Neurons and Cognition

It is shown that such diverse phenomena as accelerated Universe,
consciousness and quantum entanglement are connected by the concept of
distributed sources and imaginary (particularly, tachyon) fields.

http://arXiv.org/abs/nlin/0511040 , 5kb

Paper: astro-ph/0512494
Date: Tue, 20 Dec 2005 05:44:44 GMT (8kb)

Title: An alternative to dark matter: do braneworld effects hold the key?

Authors: Supratik Pal (IIT Kharagpur & Jadavpur University)

Comments: 9 pages, 2nd prize winning paper presented at XXIII Young
Physicists'
Colloquium of the IPS, to appear in The Physics Teacher
\\
An alternative way of explaining astrophysical observations without dark
matter is proposed. In the braneworld scenario, where our universe is
visualised as a 4-dimensional hypersurface embedded in a higher dimensional
spacetime, the effective Einstein equation on the brane contains extra
terms.
We show that the astrophysical observations which are usually explained by
particle dark matter, can be explained in this modified theory of gravity
via
those extra terms, without the need for dark matter. As specific example, we
model X-ray profiles of clusters of galaxies and the galaxy rotation curves
which are consistent with observations. Further, we investigate whether
gravitational lensing can discriminate between the two possibilities.
Significant differences between the values of the deflection angles are
obtained, which can be tested in future observations.

\\ ( http://arXiv.org/abs/astro-ph/0512494 , 8kb)

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