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Posts mit dem Label astrophysics werden angezeigt. Alle Posts anzeigen

Sonntag, 6. Juni 2021

Chocolate Fuzzy Balls

The Cloud That Didn't Care

Black Holes have been a running theme in this blog the last few years, and I have given many examples of observations which have contradicted the understanding of how they are supposed to work. Funny enough, I have have never mentioned perhaps the most striking instance of a BH behaving badly: namely, the G2 debacle. 

In 2006 astronomers discovered a huge dusty cloud in the vicinity of Sagittarius A*, also known as Milky Way's galactic center, which as we all know is assumed to be a super massive BH. As the years went by, the gas cloud, named G2, was seen drifting closer and closer to the center; and this naturally got the scientific world very excited. 

Because according to the theories the cloud would get ripped a part and sucked into the hole, or something like that. But lo and behold, when it finally arrived at its destination in mid 2014, the scientists found themselves rather dumbstruck as they watched it cruise through the abyss completely intact. 

G2 giving zero fucks.
Source: space.com

Some tried to explain it away by suggesting that it was a case of false identification, that the cloud was in reality something else, or at least contained one (or two!) huge stars that held it together with their gravity. However, realizing that they thereby confessed to - in one way or another - being incompetent, the incident was largely ignored, and very soon business continued as usual. 

Enter, the Fuzzy Ball

However, earlier this week a bunch of articles popped up on several science news-sites, proposing a radically different explanation to the old mystery. Here's a couple of screenshots taken from phys.org, livescience.com and space.com 

From livescience.com

From phys.org.

Apparently, an Italian research team recently published a paper in Monthly Notices of the Royal Astronomical Society: Letters, claiming that they have gathered proof that Sagittarius A* maybe isn't what we think, but instead a "fuzzy ball of dark matter" (I kid you not, that is exactly how they put it). 

The team put together a computer simulation of our galactic center. In one of them they simulated the traditional singularity and in another one they replaced it with a fluffy ball of dark matter. 

Of course, nobody knows what dark matter is, so the team took the liberty of constructing it out of so called "darkinos". A particle that so far resides in a purely hypothetical realm and therefore has the very practical advantage of having whatever properties one ascribes to it. Here's a quote from the livescience article:

[...] The team of astrophysicists, led by Eduar Antonio Becerra-Vergara of the International Center for Relativistic Astrophysics in Italy, found that if they replaced the supermassive black hole with a ball of darkinos, and those darkino particles had the right mass and velocity, they could replicate all the observed motion of the S-stars. In some cases, their model could do even better than the vanilla black hole calculations at matching the observed orbits. 
But that result doesn't mean much. The black hole model is exceedingly simple: You just need to plug in two numbers, the black hole mass and spin, to predict how the S-stars should behave. But the darkino model has many more parameters, allowing for more fine-tuning, and the researchers found the best possible combination of darkino properties. [...] (My bold)

In short: they use a computer simulation, throw in object X including a few extra parameters. Then continue to tweak its properties as they see fit until they have more harmonious results. 

That's some serious science for ya'll. 

Shots fired

Although I welcome the fact that someone in the scientism establishment finally entertains the idea that the object in the the middle of our galaxy might not be a black hole after all, I have to say that it's a little disappointing to see that they want to replace it with more Standard model woo woo. 

But be that as it may, there is good reason to see this as positive news. Not only does G2 get some well deserved spotlight again, but apparently some people in the astrophysics departments have a hard time letting it go as well. 

The fact that they try to use the deeply problematic dark matter as a band-aid in this case could be interpreted as a sign of desperation. In doing so, they unintentionally call into question some fundamental aspects of the very same model they try to save; and as icing on the cake, they are directly poo-pooing the last years Nobel Prize in Physics. How, you might ask. Well let me end with a quote from the 2020 Nobel committee's press release.

Using the world’s largest telescopes, Genzel and Ghez developed methods to see through the huge clouds of interstellar gas and dust to the centre of the Milky Way. Stretching the limits of technology, they refined new techniques to compensate for distortions caused by the Earth’s atmosphere, building unique instruments and committing themselves to long-term research. Their pioneering work has given us the most convincing evidence yet of a supermassive black hole at the centre of the Milky Way. [Source] (My bold)

 

animated-ball-image-0001



Sources
https://phys.org/news/2021-06-black-hole-center-milky-mass.html
https://www.space.com/fluffy-ball-darkinos-center-milky-way
https://www.nobelprize.org/prizes/physics/2020/press-release/
https://www.livescience.com/fluffy-ball-darkinos-center-milky-way.html

 

Donnerstag, 2. Mai 2019

The Hole Story

Recently astrophysicists around the world declared tremendous success as our most powerful radio telescopes managed to, as they claim, take the first photo of a black hole (from now on: BH).

Curiously, the gravitational pull within the BH's outer edge, i.e. event horizon, is so strong, that even light can't escape from it. Which means the picture in question is more exactly portraying obscured light around a black dot.

The centre of M87, making headlines around the world.

Case closed? Actually, some tantalizing arguments can and has been made against the existence of BHs. The Thunderbolts Project, proponents of the Electric Universe theory, have systematically collected and evaluated much of the scientific progress of the mainstream cosmology during the last decades. They have pointed out several severe shortcomings in the established cosmological model with regards to predictability and actual observations.

This post will highlight some of the content featured in their clip Black Holes Behaving Badly. Ranging from contradicting data to a possible alternative explanation. The purpose of this article is to provide perspective on a topic most people take for granted without having giving it much thought, and which perhaps isn't as cut and dry as it often is portrayed as.

A brief introduction

There are four types of black holes: stellar, intermediate, supermassive, and miniature. The most commonly known way a black hole forms is by stellar death. [...]

If its [star] mass collapses into an infinitely small point, a black hole is born. Packing all of that bulk—many times the mass of our own sun—into such a tiny point gives black holes their powerful gravitational pull. [...]
Supermassive black holes, predicted by Einstein's general theory of relativity, can have masses equal to billions of suns; these cosmic monsters likely hide at the centers of most galaxies. [...] [LINK]
According to the general consensus, Schwarzschild and Einstein* (indirectly) pioneered the theory of black holes in the 1910s, but it was first in the 50-60's physicists would give the idea a name and some attention. Some years later, Stephen Hawking took it to the next level when he applied a complex mathematical model to the concept and thus provided (theoretical) proof of the first singularity theory. [LINK]

A singularity is a one dimensional point residing in every black hole with an extreme amount of mass (possibly multibillion times our sun) and infinitely small volume[LINK], "where density and gravity become infinite and space-time curves infinitely, and where the laws of physics as we know them cease to operate." [LINK].

Of course one could dwell upon the purely theoretical problems considering:
I. Finite mass existing in zero volume, with infinite density and infinite gravity as one object.
II. The rationale of assuming space-time - the combination of two abstract concepts - as something physical.

But rather than doing that, the following segment will focus on observational data published on the most respected platforms in the field. [Please note that the words that appear in bold in the quotes, are edited by me.]

Conflicting data


Nothing can escape from a black hole, but Hawking radiation and so called galactic jets supposedly do.

Jets generated by the centre of Centaurs A.

Magnetic fields have been thought to account for the energy needed for the particle jets to be beamed away from the singularity rather than being sucked in. In this article from 2017 a study of a black hole called V404 Cygni showed that it's surrounding magnetic field was in fact 400 times weaker than predicted. Study co-author Stephen Eikenberry, professor in astronomy in UF's College of Liberal Arts and Sciences admits:
"Our surprisingly low measurements will force new constraints on theoretical models that previously focused on strong magnetic fields accelerating and directing the jet flows. We weren't expecting this, so it changes much of what we thought we knew."
Sophisticated computer models have also tried to explain how, but as Kyle Parfrey, postdoctoral at Berkley Labs explains, they still have a long way to go:
"The results of the new simulations are not radically different from the those of the old … simulations, which is, in some sense, reassuring," [LINK]
Reassuring that they really don't know(?). Magnetic fields outside the event horizon is apparently off the table, so gravity centered cosmology, i.e. the Standard model, has no explanation as to what causes the jets.

Moving on.

The black hole theory supposes that the region close to the BH is extremely harsh, with unimaginable tidal forces, x-ray radiation and ultraviolet light. A milieu completely unfavourable for star formation - a process believed to begin with gas clouds slowly gaining density.

Eleven young stars forming in close vicinity of a super massive BH.

A couple of years ago some observations by the Atacama Large Millimeter/submillimeter Array (ALMA) showed 11(!) young protostars within three light years of Sagittarius A. In the words of Farhad Yusef-Zadeh, astronomer at Northwestern University of Evanston, Illionois and lead author of the paper.
“Despite all odds, we see the best evidence yet that low-mass stars are forming startlingly close to the supermassive black hole at the center of the Milky Way, this is a genuinely surprising result and one that demonstrates just how robust star formation can be, even in the most unlikely of places.”
Conveniently star formation theory seems to be the problem in this instance. 

Two black holes instead of the predicted one.

In 2012 astronomers using the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) discovered not one, but two intermediate size black holes close to another in the star cluster M22. To quote Laura Chomiuk, of Michigan State University and the National Radio Astronomy Observatory:
“We didn’t find what we were looking for, but instead found something very surprising — two smaller black holes. That’s surprising because most theorists said there should be at most one black hole in the cluster,” [LINK]
Again, two instead of one.

A year later, in 2013, a similar observation was made in the star cluster M62. Contradicting most theorists once more. Though instead of reconsidering, Chomiuk says
“I think it’s safe to say that we have discovered a whole new hunting ground for black holes,” [LINK]
As it happens, it's also safe to say that most theorists were mistaken.


In this picture published in 2016 we see several super massive black holes spinning out radio jets in the same direction; a finding of utter astonishment to mainstream cosmologists as it doesn't conform to any Standard model predictions. The accidental discovery was made with deep radio imaging by researchers University of Cape Town (UCT) and University of the Western Cape (UWC) in South Africa. A quote from the article sums it up:
Romeel Dave from UWC, who leads a team developing plans for universe simulations that could explore the growth of large-scale structure from a theoretical perspective, agrees: "This is not obviously expected based on our current understanding of cosmology. It's a bizarre finding." [LINK]
Completely unrelated to galaxy alignment I will close with a quote from an article published on msutoday.msu.edu, earlier this year, when predictions not only failed to deliver, but:
The new study finds that massive black holes form in dense starless regions that are growing rapidly, turning upside down the long-accepted belief that massive black hole formation was limited to regions bombarded by the powerful radiation of nearby galaxies. [LINK]

Presented above are six cases (and let me assure you, there are more) of studies made by mainstream cosmologists that contradicts predictions made by BH theorists. Perhaps now would be a good time to remind ourselves that when empirical data fails to correspond with a theory, the theory is by definition, falsified.


An alternative theory


Plasma cosmology offers an alternative to the Standard model. I will refrain from too much extrapolation and instead refer anyone curious to the following two websites, where in-depth presentations of plasma cosmology are accessible: Plasma-Universe, The Big Bang Never Happened

Even though plasma cosmology differs from the electric universe theory, they both share the idea of how matter is apportioned in the universe. To give you a very simple understanding of how they differ from the current paradigm, here's an explanatory picture.

Plasma is a state of matter where the atoms and molecules, which are normally neutral, 
have lost or gained an electron thus becoming becoming +/- charged as an ion.[LINK]

They also share the idea of what might lurk in the middle of galaxies: A plasmoid.

Winston H. Bostick was the pioneering plasma physicist who in 1956 would create a plasmoid in a laboratory in 1956. The term refers to a toroidal structure of plasma and magnetic fields.


Above: An actual plasmoid. Notice the similarities between this and the picture of M87.
Under: As the plasmoid breaks down it emits beams very much in line with the so called 'galactic jets'.

He later proposed the idea that plasmoids could very well account for many astrophysical phenomena, not the least galaxy formation [LINK].

"not only the morphology [shape] but the controlling dynamic elements, electric and magnetic fields, are the same in the laboratory as in the galactic phenomena". [LINK]
-Walter H. Bostick 

Having two plasmoids interact with another in a laboratory experiments, he as well as Anthony L. Peratt, who made similar simulations in supercomputer facilities at Maxwell Laboratories and later at Los Alamos National Laboratory, came up with the following results:



"As above, so below."
Both laboratory simulations (Pic 1) and computer simulations (Pic 2 & 3) correspond with cosmological observations.


Thus proposing an alternative explanation as to how galaxies are formed based on observational data in laboratories rather than numbers on a chalk board. Even if the theory so far lurks in the fringes, it should at least be taken into consideration as it has no need for "dark matter" and "dark energy". Not to mention an object with several infinitesimal properties, occupying a finite Big bang universe.










Similar articles on Psydonia: 
The Big Sham
Cause for Con[CERN]

*It's almost impossible to find an article about black holes not mentioning them being predicted by Einstein's theory of General Relativity. In this presentation by Stephen Crothers, a strong case against this possible predicament is made. 

Sources:
https://news.harvard.edu/gazette/story/2019/04/harvard-scientists-lead-team-revealing-black-hole/
http://hubblesite.org/reference_desk/faq/answer.php.id=62&cat=exotic
https://www.nationalgeographic.com/science/space/universe/black-holes/
https://www.physicsoftheuniverse.com/topics_blackholes_theory.html
http://astronomy.swin.edu.au/cosmos/s/supermassive+black+hole
https://www.skyandtelescope.com/astronomy-resources/how-big-is-a-black-hole/
https://www.physicsoftheuniverse.com/topics_blackholes_singularities.html
https://www.physicsoftheuniverse.com/topics_blackholes_theory.html
http://astronomy.swin.edu.au/cosmos/G/Galactic+Jets
https://www.nature.com/articles/nature11490
https://phys.org/news/2017-12-black-holes-magnetism-surprisingly-wimpy.html
https://phys.org/tags/strong+magnetic+fields/
https://www.space.com/43151-how-particles-escape-black-holes.html
https://www.spacetelescope.org/science/formation_of_stars/
https://arxiv.org/abs/1701.05939
https://public.nrao.edu/telescopes/vla
https://public.nrao.edu/news/surprising-black-hole-discovery-changes-picture-of-globular-star-clusters/
https://msutoday.msu.edu/news/2013/msu-led-research-finds-another-black-hole-in-a-star-cluster/
http://www.astronomy.com/news/2016/04/black-holes-mysteriously-align
https://msutoday.msu.edu/news/2019/birth-of-massive-black-holes-in-the-early-universe-revealed/
https://www.sciencedirect.com/topics/social-sciences/falsification
https://resonance.is/toroidal-plasmoid-generation-via-extreme-hydrodynamic-shear/
https://www.plasma-universe.com/
https://www.thunderbolts.info
https://www.electricuniverse.info/
http://www.bigbangneverhappened.org/

Pictures (in order):
i. https://news.harvard.edu/wp-content/uploads/2019/04/eso1907a.jpg?resize=1350,759
ii. https://phys.org/news/2018-03-strange-physics-jets-supermassive-black.html
iii.https://mk0astronomynow9oh6g.kinstacdn.com/wp-content/uploads/2017/11/nrao17cb32a-768x768.jpg
iv. http://cdn.sci-news.com/images/2012/10/image_630_2.jpg
v. https://msutoday.msu.edu/_/img/assets/2013/black-hole-2_lg.jpg
vi. http://www.astronomy.com/-/media/Images/News%20and%20Observing/News/2016/04/GalaxyAlignment.jpg?mw=600
vii. http://www.everythingselectric.com/wp-content/uploads/plasma-cosmology-debunked-2.jpg
viii. https://resonance.is/wp-content/uploads/MGharib-Fig1B-NEWS-WEB.jpg
ix. https://www.researchgate.net/profile/H_Yousefi/publication/228929203/figure/fig3/AS:300825663557650@1448733835455/Image-shows-the-form-of-the-plasmoid-and-the-particle-jets-created-when-the-magnetic.png
x. https://www.plasma-universe.com/wp-content/uploads/Plasmoids-bostick.jpg

Video
Black Holes Behaving Badly: https://www.youtube.com/watch?v=-FdWTH08u30