Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ap%26ss.225...17s&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 225, no. 1, p. 17-20
Astronomy and Astrophysics
Astrophysics
Galactic Evolution, Galactic Rotation, Galactic Structure, Interacting Galaxies, Peculiar Galaxies, Spiral Galaxies, Angular Momentum, Corotation, Mass Distribution, Velocity Distribution
Scientific paper
It is demonstrated that the kinematic 'peculiarity' of the early Sab galaxy NGC 4826 can easily be understood in terms of the Abelian Higgs (AH) model of spiral galaxies. A cylindrically symmetric AH vorto-source (-sink) with a disk-to-bulge ratio Omega greater than 1 is discussed and the distributions of the diagonal components of the corresponding stress-energy tensor Tmu,nu are presented. It is argued that the sign-changing component Tphiphi could account for the existence of two counter-rotating gas disks while negative values of Trr imply inward gas motions as observed in the outer and transition regions of the galaxy.
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