1Spiral Galaxies: Origin by Gravitational Vectors Merging Theory
Abstract
More than half of all big galaxies are spiral galaxies. Generally we find a double spiral figure, for example M 74 ( = NGC 628) or M 83 or ESO 269-57. Each of two spiral arms arises from opposite position at the central bulge. Sometimes these arms are splitting up, see NGC 1232 or our Milky Way or M 101Similar works
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