Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1972
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1972ap%26ss..15..293b&link_type=abstract
Astrophysics and Space Science, Volume 15, Issue 2, pp.293-306
Astronomy and Astrophysics
Astrophysics
8
Scientific paper
A new model of galactic formation is presented. A primeval distribution of angular momentum is derived, which rests on the postulated presence of mass flows at the early stage of the post-big bang universal expansion, when fragmentation occurs. The shape of any particular fragment and its orientation with respect to the mass flow predestine the morphology of the galaxy that will be produced in the subsequent collapse. A fragment-to-disk mapping transform allows examination of the galactic disk mass distributions that result from the postulates of the model. One class of distribution adequately describes the observed luminosity profiles of elliptical galaxies. Another class indicates the allocation of a large mass fraction to an extended disk, and the intrinsic two-sided symmetry of the model further indicates that the disk formation process will begin with the establishment of two major spiral arms.
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