Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aipc..493..213g&link_type=abstract
Eighth Canadian conference on general relativity and relativistic astrophysics. AIP Conference Proceedings, Volume 493, pp. 213
Astronomy and Astrophysics
Astrophysics
Gravity In More Than Four Dimensions, Kaluza-Klein Theory, Unified Field Theories, Alternative Theories Of Gravity, Relativity And Gravitation
Scientific paper
We consider the idea of replacing the gravitational constant G by a function depending on the surrounding medium and whose variation would be noticeable on the galactic scale. Such a function in newtonian dynamics allows one to explain the flat region of the rotation velocity curves of many galaxies, without the dark matter hypothesis. This study is done within a unified field theory of the Kaluza-Klein type where we give an interpretation of gravitation which includes general relativity.
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