Cosmic tachyons - an astrophysical approach

Details Cosmic tachyons - an astrophysical approach Cosmic tachyons - an astrophysical approach

Oct 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978amsci..66..587n&link_type=abstract

American Scientist, vol. 66, Sept.-Oct. 1978, p. 587-593.

Astronomy and Astrophysics

Astrophysics

1

Astrophysics, Cosmology, Gravitational Effects, Relativity, Tachyons, Astronomical Models, Black Holes (Astronomy), Particle Interactions, Particle Trajectories

Scientific paper

Properties of tachyons are reviewed, and the gravitational interaction of tachyons is considered. It is shown that a tachyon propagating in an expanding universe loses momentum as the expansion continues and eventually encounters a time barrier where it begins to move backward in time. The possibility of tachyonic photons and neutrinos is discussed, and interactions between tachyons and black holes are examined. It is suggested that some tachyons which fall radially into a Schwarzschild or Kerr black hole will not reach the central singularity but will be bounced back at some finite radial distance from the center and that a tachyon with sufficiently high angular momentum will spiral into the singularity. Tachyons which reach the singularity in a Kerr black hole are found to reduce the area of the black hole, even to the extent where naked singularities become visible. It is concluded that black holes could be used as tachyon detectors.

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