According to this article, neutral hydrogen & helium in interstellar gas clouds outweighs stellar (fully ionized) matter around 10:1:If dark matter exists and exists in the percentages hypothesized , then the answer to my original would be "No"?
I have often been annoyed by people who seek simple answers to complex questions
and, now
I appear to be one of them?
...a "preponderance of observational data" on a Mythical substance that has yet to be observed...Wikipedia is a great source of info on DM:
https://en.wikipedia.org/wiki/Dark_matter
The overwhelming preponderance of observational data accords with DM being uncharged.
Thanks DMOE for reminding about MOND as DM-free competitor theory. That article is pretty impressive in its support of MOND based on many galaxy RC analyses. However, Wikipedia again:...a "preponderance of observational data" on a Mythical substance that has yet to be observed...
My apologies that the following is NOT from wikipedia, so it's veracity may NOT match that of wikipedia...but still a well presented paper in my estimation, Q-reeus :
https://iopscience.iop.org/article/10.3847/1538-4357/abbb96
" Testing the Strong Equivalence Principle: Detection of the External Field Effect in Rotationally Supported Galaxies "
"Our results suggest a breakdown of the SEP: the internal dynamics of a gravitational system in freefall is affected by a uniform external gravitational field. This sheds new light on the dark-matter problem and paves the way for relativistic theories of modified gravity in the weak-field regime of gravity g10−10 m s−2."
My Bad, Q-reeus!Thanks DMOE for reminding about MOND as DM-free competitor theory. That article is pretty impressive in its support of MOND based on many galaxy RC analyses. However, Wikipedia again:
https://en.wikipedia.org/wiki/Modified_Newtonian_dynamics#Outstanding_problems_for_MOND
It may take a long time till the dust finally settles.
No need to feel bad. At this stage it's entirely possible some form of MOND, not the original version though, will eventually win out. If you just read the articles at https://darkmattercrisis.wordpress.com/ it's all but a done deal. My experience is competitor theorists can erect an equally compelling blog site dispelling MOND in favor of DM or maybe some other modified gravity theory. And the final answer may involve both DM and a MOND-type gravity.My Bad, Q-reeus!
As I alluded to in my previous Post, I kinda figured that the veracity of anything from https://iopscience.iop.org would not be the equivalent of wikipedia.
So... Again, My Bad!