Decay of primordial cosmic rotation in inflationary cosmologies

Details Decay of primordial cosmic rotation in inflationary cosmologies Decay of primordial cosmic rotation in inflationary cosmologies

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987natur.328..501g&link_type=abstract

Nature (ISSN 0028-0836), vol. 328, Aug. 6, 1987, p. 501-503.

Astronomy and Astrophysics

Astronomy

19

Angular Velocity, Astronomical Models, Big Bang Cosmology, Galactic Evolution, Galactic Rotation

Scientific paper

Assuming that the universe came to being as a mini-universe of Planck dimensions which went directly into an inflationary epoch driven by a scalar field with a flat potential, the authors argue that the cosmic vorticity has decayed by a factor of about 10-145, due to the non-rotation of the false vacuum and the exponential expansion during inflation. It is shown that the hypothesis that the rotation of galaxies is caused by cosmic vorticity is not compatible with the inflationary model.

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