Page 1 of 1

Dark matter theories

Posted: Thu Aug 08, 2019 10:19 pm
by Giorgio
Dark mater is one of those theories that I never considered as having a solid base, a theory born just on the need to mathematically satisfy an imperfect modeling of the universe due to our still limited understanding of the space time fabric, of the emergence of mass and of what the heck gravity and inertia really are.

But if there is something that we all should agree on is that nature has the tendency of repeating herself with same/similar mathematical constructs for the different fundamental forces. This means that sometimes the answer to a puzzling question lies not in invoking an unknown, invisible, non measurable entity, but simply into better understanding the mathematical construct we are using to analyze it.

Luckily, more researchers are now finally moving out of such mental constrains and starting to look for more simplistic and observable models.

Here is a fresh paper from Nature's "Scientific Reports" that in an elegant way gets rid of the need of dark mater by creating a mathematical model that treats Entropy as a "complement of information" and by doing so, coherently explaining galaxies shapes among other things.

The title is: Maximum Entropy (Most Likely) Double Helical and Double Logarithmic Spiral Trajectories in Space-Time
PDF available HERE or HERE


A worthwhile read for anyone interested in the field.

*Edited to add Paper's original title.

Re: Dark matter theories

Posted: Fri Aug 09, 2019 3:48 pm
by paperburn1
With the recent discovery of the probability of many tines more galaxies out there does that not put a kink ito dark matter Hypothesis? :?:

Re: Dark matter theories

Posted: Fri Aug 09, 2019 8:31 pm
by Giorgio
paperburn1 wrote:With the recent discovery of the probability of many tines more galaxies out there does that not put a kink ito dark matter Hypothesis? :?:

Personally I would say yes. According what I read they expect to find thousands and thousands more once the survey is complete. That indeed should put a dent into dark matter conjectures and force them to revise their assumptions.

Than again, I see the glass half full, other might see it half empty and conjure that the extra galaxies will fit well into the model where the black hole at the center of each Galaxy act like a nodal point of connection for streams of dark matter that connect each galaxy with the other......

The intrinsic beauty of Dark matter theory is that you can just make up models to adapt them to latest discoveries without bothering about observations because there is nothing to observe..... Kinda like a religious dogma.

Re: Dark matter theories

Posted: Sat Aug 10, 2019 3:38 pm
by Aero
Well, my theory about dark matter is that we extrapolate the number of undiscovered galaxies and their black hole masses until all dark matter is absorbed into the black holes. Of course, I suspect that was the first calculation made when scientists noticed the need to add matter to the universe models.

Re: Dark matter theories

Posted: Sat Aug 10, 2019 6:57 pm
by Giorgio
Not only undiscovered galaxies but also all the matter that might exist among galaxies and between solar systems within the same galaxy can have deep influence on those theories. Increasing the mass of galaxies by adding newly discovered baryonic matter will need the revision of the theorized amount of Dark matter, but will also modify the universe density (Rho) in the first Friedmann equation, creating more headache for the Dark energy theorists that are already struggling with the continuous changes in value observed for the first term of the Friedmann equation (which is the Hubble constant).

My hope is that one day we will be able to move observations far in space with better instruments, that might give us really a new understanding of our local area constituency and (maybe) of milky way and the rest of galaxies as a consequence. Unfortunately I don't think that I will have a chance to see that in my life.