gas as a candidate for dark matter
Yuri A. Rylov
Institute for Problems in Mechanics, Russian
Academy of Sciences
101-1 ,Vernadskii Ave., Moscow, 119526,
Web site: http://rsfq1.physics.sunysb.edu/~rylov/yrylov.htm
or mirror Web site: http://gasdyn-ipm.ipmnet.ru/~rylov/yrylov.htm
Updated July 28, 2012
In the physical geometry (i.e. in geometry,
described completely by its world function) identical geometric objects have
identical description in terms of the world function. As a result spacelike straight segment is a three-dimensional surface
even in the space-time geometry of Minkowski.
Tachyons have two unexpected properties: (1) a single tachyon cannot be
detected and (2) the tachyon gas can be detected by its gravitational
influence. Although molecules (tachyons) of the tachyon gas moves with superluninal velocities, the mean motion of these molecules
appears to be underluminal. The tachyon gas properties differs from those of usual gas. The pressure of
the tachyon gas depends on the gravitational potential and does not depend on
temperature. As a result the tachyon gas may form huge halos around galaxies.
These halos have almost constant density, and this circumstance can explain the
law of star velocities at the periphery of a galaxy. Properties of the tachyon
gas admit one to consider it as a dark matter.
text of the paper in English (pdf, ps)
and in Russian (ps, pdf)