Neutron Star Collision Data Falsifies Dark Matter Emulators

https://arxiv.org/abs/1710.06168v1

by canjobear • 9 years ago

22 7 9 years ago

arxiv.org

grabcocque• 9 years ago

(deleted)

jjoonathan• 9 years ago

Bell's theorem?

organman91• 9 years ago

Could someone explain this in layman's terms? I'm confused as to what is meant by a "Dark Matter Emulator".

_rpd• 9 years ago

One idea about dark matter is that the laws of gravity are just different at large scale. This measurement rules out some of those theories ...

the [measurement] enables us to test a certain class of modified gravity theories, which dispense with the dark matter paradigm and reproduce Modified Newtonian Dynamics (MOND) like behavior in the non-relativistic limit. Such modified theories of gravity have been dubbed “Dark Matter Emulators”. Some examples of these Dark Matter (DM) emulator theories include Bekenstein’s TeVeS theory and Moffat’s Scalar-Tensor-Vector gravity theory

colechristensen• 9 years ago

Some attempts at explaining the missing matter involved modifying gravity to the effect that light and gravity waves would arrive at different times. They didn't so those theories are invalid.

"emulator" seems to be a term for a certain sort of model and simulation.

dang• 9 years ago

https://news.ycombinator.com/item?id=15550553 was posted a bit earlier, plus for highly specialized papers we tend to prefer the best popular article on the topic (though that one may not be the best).

cdumler• 9 years ago

Does anyone know if this has any effect on Erik Verlinde's theory of gravity?

Neutron Star Collision Data Falsifies Dark Matter Emulators

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