The galaxy does not appear to contain any dark matter, even after 40 hours of detailed measurements with state-of-the-art telescopes.
“But now the problem remains that the theory predicts that there must be dark matter in AGC 114905, but our observations say there isn’t.
For example, AGC 114905 could have been stripped of dark matter by large nearby galaxies.
And in the most reputed galaxy formation framework, the so called cold dark matter model, we would have to introduce extreme parameter values that are far beyond the usual range.
Also with modified Newtonian dynamics, an alternative theory to cold dark matter, we cannot reproduce the motions of the gas within the galaxy.”.
If again observe no trace of dark matter in that galaxy, it will make the case for dark matter poor galaxies even stronger.
Earlier, for example, the Dutch American Pieter van Dokkum (Yale University, USA) discovered a galaxy with hardly any dark matter.Reference: “No need for dark matter: resolved kinematics of the ultra-diffuse galaxy AGC 114905” by Pavel E.I suggest the astronomers are confusing Dark Matter with galaxy shape.From a view of String Theory, Dark Matter appears to us as an effect of string/anti-string annihilations.
Specifics on this can be found in my YouTube, Dark Matter – A String Theory Way at https://www.youtube.com/watch?v=N84yISQvGCk.
Again from String Theory, if the central core is a brane (dimensional membrane) that doesn’t include a Mass dimension, then star-forming strings would be created from it but those created stars wouldn’t be tightly bound to the brane, as they are in “normal” galaxies like the Milky Way.
A general description of this can be found in my YouTube, Creating Universes – A String Theory Way at https://www.youtube.com/watch?v=IaxfuKXdhkg&t=6s.Could Dark Matter be Helium 4 or 3?
If helium 3 and 4 can escape most gravitational fields – why couldn’t the composition of dark matter in the universe be helium 3 or 4 gravity particles?Baryonic dark matter conversion of matter to helium-4?Helium 4 from Baryonic dark matter.
From the perspective of Big Bang nucleosynthesis, a larger amount of ordinary (baryonic) matter implies a denser early universe, more efficient conversion of matter to helium-4, and less unburned deuterium remaining.
If all of the dark matter in the universe were baryonic, then there would be much less deuterium in the universe than is observed.” All elements other than hydrogen and helium today account for only 2% of the mass of atomic matter in the universe. As I have been trying to understand how and when and where motion first started in the universe to me it is apparent that this 23% of the unexplained helium in the universe is left over from a past cycle of expanding and decay of galaxies , leaving helium 3 and 4 and gravity …meaning the universe is much older than 13.8 Billion years ( my guess is the universe is in its forth cycle of decay and is about 4 x 13.8 billion yo or about 60 billion yo ) and that motion has been existence in the universe even before that, because if everything decayed to absolute ZERO Kelvin there would be no motion – but the universe allegedly cant go back to a motionless state now, because Helium 4 can not freeze this saving the day of a motionless static universe in the futureSteady State Galaxy Theory see Steady State Galaxy Theory “ why couldn’t the composition of dark matter in the universe be helium 3 or 4 gravity particles
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