Long story short: My own theory of Dark Matter predicts that Dark Matter is EMERGENT. That could be viewed as a huge flaw, easy to disprove, sending me back to a burrow somewhere to pursue my humble subterranean existence of sorts. HOWEVER, big surprise: DARK MATTER EMERGENCE seems to be exactly what was just observed in 2017, at the European Southern Observatory (ESO)!
Anomalies in the behavior of gravitation at a galactic scale, has become the greatest crisis in physics. Ever:
What is the problem? Four centuries of physics possibly standing on its head! (Using the virial theorem,) Swiss astronomer Fritz Zwicky discovered and named Dark Matter, or, as Zwicky said in German, “dunkle Materie“, in 1933. Zwicky observed an enormously mysterious gravitational pull.
Zwicky computed that the observed gravitational pull did not correspond to the visible matter, by an ORDER OF MAGNITUDE, and thus Zwicky assumed that there was plenty of matter that could not be seen. (At the time, physicists scoffed, and went to stuff more interesting to the military, thus, better esteemed and more propitious to glorious splurging and handshakes from political leaders!)
If spiral galaxies were only made up of the matter that we can see, stars at the outer edge should orbit the centre slower than those closer to the center.. But Zwicky noticed that this was not the case: all the stars in the Andromeda galaxy move at similar speeds, regardless of their distance from the galactic center. (For nationalistic reasons Americans love to attribute DM’s discovery to American astronomers Vera Rubin and Kent Ford .in the 1970s. However great Vera Rubin is, that’s despicable: they worked 40 years after Zwicky.)
Many studies since the 1930s provided evidence for Dark Matter. Such matter doesn’t interact with light, that’s why it is dark. Thus, one can only observe the effects of Dark Matter via its gravitational effects.
How does one compute the mass of a galaxy?
One just look at how many stars it has. (In the Solar System, the sun is a thousand times more massive than all the planets combined; studies on how much stars are moved by the planets around them confirm that most of the mass is in the stars.) And that shows up as the overall light emitted by a galaxy. Summing up the observed light sums up the mass. Or, at least that was the long-standing idea. (More recently, the pull gravitation exerts on light has been used to detect Dark Matter, and it has been used on a… massive scale!)
At the scale of galaxies, or galactic clusters, the motions of objects is indicating at least ten times the gravitational force that should be there, according to gravitation theory, considering the mass we see (that is the mass of all the stars we see).
Problem: that would mean that he so-called “Standard Model” of physics has no explanation for most of the mass in the galactic clusters.
Reality check: the celebrities of physics are very arrogant, and think they know exactly what the universe had for breakfast, 13.8 billion years ago, and how big it was (never mind that their logic is ridiculously flawed). Up to a few years ago, many were in denial that they were missing most of the mass-energy in the universe with their Standard Model theory.
However, here they are now, having to admit they missed 95.1&% of the mass-energy in the universe (according to their own latest estimates)!
A low logical cost solution to the riddle of the apparently missing mass, was to decree that all physicists who have studied gravitation since Bullialdus, nearly four centuries ago, got it wrong, and that gravitation is not, after all, an inverse square of the distance law. A problem is that French astronomer Bullaldius’ very elementary reasoning seems still to have kept some validity today. Remember that, in the Quantum Field Theory setting, forces are supposedly due to (virtual) particle exchanges? Well, that was the basic picture Bullialdus had in mind! (Thus those who want to modify so-called “Newtonian Dynamics” wreck the basic particle exchange model!)
Bullialdus’ Inverse Distance Squared Law, Basic to Newton-Eintein:
Ismael Boulliau (aka Bullialdus) a famous astronomer, member of the English Royal Society, proposed the inverse square law for gravity, a generation before Newton. (Bullialdus crater on the Moon, named for Boulliau, would have water, by the way.) Boulliau reasoned that the force would come from particles emitted by the sun, just like light. Here is Bullialdus voice:
“As for the power by which the Sun seizes or holds the planets, and which, being corporeal, functions in the manner of hands, it is emitted in straight lines throughout the whole extent of the world… seeing that it is corporeal, it becomes weaker and attenuated at a greater distance or interval, and the ratio of its decrease in strength is the same as in the case of light, namely, the duplicate proportion, but inversely, of the distances that is, 1/d².”
Why still true today? The carrier of force are particles.If they go to infinite distance (as electromagnetism and gravitation do), then the density of filed carriers (photons, gravitons) will go down, as Bullialdus said, for the reason he gave.
Bullaldius’ observation is the basis of Newton’s gravitation theory, which is itself the first order approximation of Einstein’s theory of gravitation. (Einstein’s gravitaion is a tweak on Newton’s theory; what Einstein did is actually to re-activate Buridan’s inertial theory with advanced mathematics invented by others (Riemann, Ricci, Hilbert, Levi-Civitta)
There is a basic problem here: although Einstein’s theory is a small tweak on Newton’s, MONDs are not. Correcting a theory by a factor of ten, a hundred, or a thousand is no tweak. Moreover:
2017 ESO Discovery: Slowly Spinning Old Galaxies:Natascha Förster Schreiber at the Max Planck Institute for Extraterrestrial Physics in Germany and her colleagues have used the European Very Large Telescope in Chile to make the most detailed observations so far of the movement of six giant galactic discs, 10 billion years ago.
They found that, unlike in (quasi-)contemporary galaxies, the stars at the edges of these galaxies long ago, far away, move more slowly than those closer in.
“This tells us that at early stages of galaxy formation, the relative distribution of the normal matter and the dark matter was significantly different from what it is today,” says Förster Schreiber. (Well, maybe. MY interpretation would be very different! No DM!)
In order to check their unexpected results, the researchers used a “stack” of 101 images of other early galaxies to find an average picture of their rotations. The stacked galaxies matched the rotations of the more rigorously studied ones. “We’re not just looking at six weirdo galaxies – this could be more common,” says Förster Schreiber. “For me, that was the wow moment.”
MOdified Newtonian Dynamics (MONDs) Don’t Work:
About 10 billion years ago, there was a peak formation period of galaxies. By looking 10 billion light years away, one can see what was going on then, and have plenty of galaxies to look at. Where was the Dark Matter there? Was there Dark Matter then? One can answer these questions by just looking, because Dark Matter shows up in the way galaxies rotate, or orbit (in galactic cluster).
The result is both completely unexpected and spectacular! I am thrilled by it, because what is observed to happen is exactly the main prediction of MY theory of Dark Matter!
What is found is that, ten billion years ago, the largest star-forming galaxies were dominated by normal matter, not by the dark matter that’s so influential in galaxies today. (I reckon that this result was already indicated by the existence of galaxies which are mostly Dark Matter… at least in my sort of cosmology which differs massively from the standard Lambda Cold Dark Matter, LCDM model.)
MOND theories, relativistic or not, say that gravity is ten times stronger at, say, 30,000 light years away from a mass. If that’s the true law of gravitation in the last few hundreds of millions of years (as observed in presently surrounding galaxies), it should have been the case ten billion years ago. But that’s not what’s observed. So MOND theories can’t be true
LCDM cop-out: Dark Matter makes halos, like around the Virgin Mary’s Head!
On the face of it, the discovery about those ten billion year old galaxies say that the galactic disks then did not contain Dark Matter. That seems to me that it shoots down both MOND theories and the LCDM model (that’s the fancy name for the conventional Big Bang, latest version).
However, conventional scientists, and, in particular, cosmologists, are good at pirouettes, that’s why they are professionals. There is still a (twisted) logical escape for LCDM model. The differences in early galaxies’ rotations demonstrates that there is very little Dark Matter in towards the middle of their disks, to start with, reason the Cold Dark Matter specialists. Instead, those ancient galaxies’ disks are almost entirely made up of the matter we see as stars and gas. The further away (and thus earlier in cosmic history) the galaxies were, the less dark matter their disks contained.
The specialists suggest that the turbulent gas in early galaxies condensed into the flat, rotating disk shapes we see today more quickly than Dark Matter, which remained in a diffuse “halo”, which would progressively fall in… but had not started to falling enough, ten billion years ago. (That’s weird, because I thought LCDM mixed normal matter and dark matter, right from the start. In any case, I am not going to make their increasingly fishy case for them!).
Dark Matter gathers – but it takes time. This is exactly what my theory of Dark Matter predicts. In my own theory, Dark Matter is the result, the debris, of Quantum Interactions (entanglement resolutions, singularization) at very large distances. This debris gathering takes time.
My Dark Matter theory predicts that Dark Matter is an Emergent phenomenon. No other theory does that. Studies of more than 100 old giant galaxies support my theory, why making the situation (very) difficult for the conventional Dark Matter theory (“LCDM”) and impossible for the MOND theories.
This progressive build-up of Dark Matter is NOT predicted by the other two Dark Matter theories. The standard (LCDM) cosmological Dark Matter model does NOT predict a slow gathering of Dark Matter. Nor does the MOdified Newtonian Dynamics theories (MOND, relativistic or not) predict a slow apparition of Dark Matter.m the center and most of the visible matter.
It has been taken for granted by the Dark Matter advocates that Dark Matter, a sort of non-standard standard matter, was in the universe from its legendary start, the Big Boom, aka, Big Bang,
“This is an important step in trying to figure out how galaxies like the Milky Way and larger galaxies must have assembled,” says Mark Swinbank at Durham University. “Having a constraint on how early the gas and stars must have formed the discs and how well-mixed they were with dark matter is important to informing their evolution.”
Journal reference: Nature, DOI: 10.1038/nature21685
Right. Or maybe, as I speculate, for plenty of excellent reasons coming from logically far away, this is an indication that not Gravitation Theory, but Quantum Theory, is not correct. Oh, the Standard Model, too, is not correct. But we all already knew this…
Conclusion: If the ESO observation that Dark Matter was not present in large galactic disks, ten billion years ago, is correct, I cannot imagine how MOdified Newtonian Dynamics theories could survive. And I find highly implausible that LCDM would. All what is left standing, is my own theory, the apparent main flaw of which, is now turned into a spectacular prediction! DARK MATTER Appears SLOWLY as predicted by Patrice Ayme’s SUB-QUANTIC Model. (Wow!)