I notice that the data so far, from diverse sources not only predicts dark matter, but all so far give us the same amount of it out there.
The problem is, there should be a particle involved, and so far, no one's found a single particle that doesn't fit nicely into the standard model.
Which makes it difficult to say what a particle of dark matter would be.
Dr. Levkov and his colleagues, Alexander Panin and Igor Tkachov from the Institute for Nuclear Physics of the Russian Academy of Sciences, concluded that Bose-Einstein condensate may form in the centres of halos of dwarf galaxies in a time smaller than the lifetime of the Universe. This means that Bose stars could populate them now.
The authors were the first who saw the formation of the Bose-Einstein condensate from light dark matter in computer simulations. In previous numerical studies, the condensate was already present in the initial state, and Bose stars arose from it. According to one hypothesis, the Bose condensate could have formed in the early Universe long before the formation of galaxies or miniclusters, but reliable evidence for that is currently lacking. The authors demonstrated that the condensate is formed in the centres of small halos, and they plan to investigate condensation in the early Universe in further studies.
The scientists pointed out that the Bose stars may produce Fast Radio Bursts that currently have no quantitative explanation. Light dark matter particles called "axions" interact with electromagnetic field very weakly and can decay into radiophotons. This effect is vanishingly small, but inside the Bose star it may be resonantly amplified like in a laser and could lead to giant radio bursts.
"The next obvious step is to predict the number of the Bose stars in the Universe and calculate their mass in models with light dark matter," concluded Dmitry Levkov.
Russian physicists observe dark matter forming droplets
Who's right, or if anyone is right, I don't know. The math makes my head hurt.
Direct observations by astronomers. Imply the existence of a large amount of matter to dim for us to detect with current technologies.
Direct observations of stars in our vicinity by astronomers Reveal an "initial mass function" a pattern to the number of stars of each mass that exist around us, N(M) = M^-2.3. That initial mass function predicts. A mathematically infinite amount of mass residing in Sub Stellar. Brown dwarves.
Every single search for MACHOs (Massive compact Halo objects), including Sub Stellar Brown Dwarves as well as Post Stellar Black Dwarfs, Neutron stars and black holes, Has detected At least
some (including the most recent one in the news over the past couple of weeks)
Batting average and on base average of 1000, slugging average at least 1000.
No search for exotic dark matter particles has ever found anything whatsoever at all.
Batting average on base average slugging average of 0000.
The supposed "need" for EXOTIC dark matter particles derives from calculations completed by nuclear particle physicists in 1948. Astronomers and cosmologists themselves never knew they needed EXOTIC dark matter particles -- as opposed to say just really dim hard to detect As yet unobserved dim matter like Brown Dwarfs and dark post stellar compact objects -- until they were told so by the nuclear particle physics department upstairs, so to speak.
The supposed "need" for EXOTIC dark matter particles derives from calculations over 70 years old. Pure equations on chalkboards. In absolutely no way whatsoever at all derived FROM direct observations of the HEAVENS.
EXOTIC dark matter has never one time yet been substantiated or corroborated or supported by direct eyes on the skies.
All of the money poured into EXOTIC dark matter detection experiments could be used to build SUPER LARGE TELESCOPES. In 400 years since Galileo. Every single telescope purchased. Has empowered its proud owner To view innumerable stars and galaxies and wonders throughout the heavens. Every single next generation newer bigger, better telescope has ALWAYS revealed innumerable, NEW stars and galaxies and wonders OVERLOOKED previously.
Telescopes have never failed in 400 years.
Tried and true.
Batting average on base average slugging average all 1000 or greater.
Once Upon a time science was OBSERVATION driven. Driven by direct observations. And when scientists didn't have the apparati required to make the observations, they invested the time and money into BUILDING those apparatuses first. Doing the experiments. Taking the data. And THEN analyzing the data to derive theory.
Humans on Earth are pouring millions of dollars into chalkboards chalk and underground "Bat cave" EXOTIC dark matter detection apparatuses... And so far batting 0000. Striking out each at bat.
if all that money had been poured into next generation super large telescopes. Guaranteed 100%. New good, solid science and wondrous amazing observations would have resulted. Probability 100%.
(And astronomers would get to go outside to beautiful, sunny places like Arizona, Hawaii and the Andes Mountains. to boot.)
We all would have at LEAST gotten amazing new astronomy pictures of the day. Instead of absolutely nothing whatsoever at all of value.
Who cares? Why is cosmology so important? Why is it so important to know what's actually out there? And get direct "eyes on" detections of it?
Well, who knows? But we all do KNOW that "knowing is half the battle" And "Forewarned is forearmed" so to speak.
Super large telescopes are GUARANTEED 100% to provide at least SOME new "hard intelligence. On the grand strategic scale". So to speak.
Underground "bat cave" EXOTIC dark matter detection apparatuses appear so far to be 100% guaranteed to fail and to provide nothing of value whatsoever at all.
Time passes. The clock is ticking. And time is money wasted can never be reclaimed...