Galaxy rotation curves in superfluid vacuum theory
Autor: | Zloshchastiev, Konstantin G. |
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Rok vydání: | 2023 |
Předmět: | |
Zdroj: | Pramana 97, 2 (2023) |
Druh dokumentu: | Working Paper |
DOI: | 10.1007/s12043-022-02480-2 |
Popis: | Logarithmic superfluid theory of physical vacuum suggests that gravity has a multiple-scale structure; where one can recognize sub-Newtonian, Newtonian, logarithmic, linear and quadratic (de Sitter) terms in the induced spacetime metric and effective potential. To test the theory's predictions on a galactic scale, we apply best-fitting procedures to the rotation curve data obtained from fifteen galaxies by the HI Nearby Galaxy Survey; assuming their stellar disk's parameters to be fixed to the mean values measured using photometric methods. Although the fitting results seem to be sensitive to a stellar disk model chosen, they correspond closely with observational data, even for those galaxies which rotation velocity profiles do not have flat regions. Comment: 7 pages, 3 figures |
Databáze: | arXiv |
Externí odkaz: | |
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