Würzburg 2018 – wissenschaftliches Programm

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GR: Fachverband Gravitation und Relativitätstheorie

GR 8: Poster session (permanent)

GR 8.15: Poster

Mittwoch, 21. März 2018, 18:00–19:30, Phys-SR-SE2

Dark Matter Problem solved by Modified Gravitation — •Albrecht Giese — Taxusweg 15, 22605 Hamburg

Dark matter is one of the great mysteries in physics today.

There are fundamentally two possible solutions: (1) types of particle may exist which are presently undetected and which provide the missing contribution to the gravitational field; (2) the theory of gravity put forward by Newton and Einstein, which relates gravitation to mass and energy, may be at fault.

For the second alternative, a working ansatz is available. If the Lorentzian interpretation of relativity is extended to the field of general relativity, i.e. to gravitation, this results in a different causality for gravity. Gravity is no longer caused by mass but is instead a side effect of other forces. So every elementary particle contributes to the field independently of its mass. In this case, photons and neutrinos play a prominent role.

Taking the thoroughly investigated rotating galaxy NGC 3198 as an example of this approach, it can be shown that the result for the value of the field as well as its spatial distribution fits the measurements quite precisely.

On the other hand, the search for specific particles as an explanation for this phenomenon has not yielded any hint of their existence up to now.