The rotation of galaxies - The contribution from galaxy merging

Details The rotation of galaxies - The contribution from galaxy merging The rotation of galaxies - The contribution from galaxy merging

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mnras.189...27j&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 189, Oct. 1979, p. 27-38.

Astronomy and Astrophysics

Astronomy

34

Cosmology, Elliptical Galaxies, Galactic Evolution, Galactic Rotation, Stellar Systems, Angular Momentum, Computerized Simulation, Luminous Intensity, Universe

Scientific paper

A simple modification of Aarseth's (1979) N-body code is used to simulate the growth of galaxies under the hypothesis that galaxies form from the continual merging of their dark stellar haloes. The main conclusions are: (1) the angular momentum derived from the orbital motion of merged galaxies is low. If ellipticals formed as the result of mergers between two or more comparable stellar systems of low binding energy, they will be slowly rotating in agreement with observations; (2) the galaxy mass spectrum is steeper in the field than in clusters; and (3) most merged galaxies are in clusters.

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