... should we take this? Galactic rotation curve and dark matter according to gravitomagnetism https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-021-08967-3
> Abstract Historically, the existence of dark matter has been postulated > to resolve discrepancies between astrophysical observations and accepted > theories of gravity. In particular, the measured rotation curve of galaxies > provided much experimental support to the dark matter concept. However,most > theories used to explain the rotation curve have been restricted to the > Newtonian potential framework, disregarding the general relativistic > corrections associated with mass currents. In this paper it is shown that the > gravitomagnetic field produced by the currents modifies the galactic > rotation curve, notably at large distances. The coupling between the > Newtonian potential and the gravitomagnetic flux func-tion results in a > nonlinear differential equation that relates the rotation velocity to the > mass density. The solution ofthis equation reproduces the galactic > rotation curve without recourse to obscure dark matter components, as > exemplified by three characteristic cases. A bi-dimensional model is > developed that allows to estimate the total mass, the central mass density, > and the overall shape of the galaxies, while fit-ting the measured luminosity > and rotation curves. The effects attributed to dark matter can be simply > explained by the gravitomagnetic field produced by the mass currents. I'd never even heard of the Lense-Thirring effect: https://en.wikipedia.org/wiki/Lense%E2%80%93Thirring_precession -- ↙↙↙ uǝlƃ - .... . -..-. . -. -.. -..-. .. ... -..-. .... . .-. . FRIAM Applied Complexity Group listserv Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam un/subscribe http://redfish.com/mailman/listinfo/friam_redfish.com FRIAM-COMIC http://friam-comic.blogspot.com/ archives: http://friam.471366.n2.nabble.com/
