Scientists have confirmed that intrinsic alignments of galaxies can probe dark matter and dark energy on a cosmological scale, supporting general relativity at vast spatial scales. However, the nature of dark energy and cosmic acceleration remains unresolved.
Einstein would nod in approval. General relativity may apply even in the farthest reaches of the universe.
Now, scientists from international research institutions, including Kyoto University, have confirmed that the intrinsic alignments of galaxies have characteristics that allow it to be a powerful probe of dark matter and dark energy on a cosmological scale.
By gathering evidence that the distribution of galaxies more than tens of millions of light years away is subject to the gravitational effects of dark matter, the team succeeded in testing general theory of gravity at vast spatial scales. The international team analyzed the positions and orientations of galaxies, acquired from archived data of 1.2 million galaxy observations. With the help of available 3D positional information of each galaxy, the resulting statistical analysis quantitatively characterized the extent to which the orientation of distant galaxies is aligned.
“These alignments, which are primarily produced by interactions with nearby objects, have been regarded as systematic noise in measuring weak lensing effect,” states lead author Atsushi Taruya of KyotoU’s Yukawa Institute for Theoretical Physics.
“We have also successfully measured the rate at which the galaxy distribution gradually becomes denser due to gravity, which is consistent with the general theory of relativity,” says Teppei Okumura of the Academia Sinica Institute of Astronomy and Astrophysics.
“Our research verified general relativity at the distant universe, but the nature of dark energy or the origin of cosmic acceleration still remains unresolved,” adds Okumura.
The archived data — obtained from the Sloan Digital Sky Survey and the Baryon Oscillation Spectroscopic Survey — consists of three galaxy samples selected for their brightness and distance. In addition, 3D positions and shape information for each galaxy helped to measure the magnitude of alignment relative to distant galaxies.
The results of the team’s model corroborated with theoretical calculations and gave Taruya and Okumura strong evidence that the orientations of these galaxies are related to each other, demonstrating a stronger case for general relativity on a cosmological scale.
“Current endeavors, such as the Subaru Telescope project, will provide extremely high-quality, high-precision observational data. These will spearhead innovative cosmological research using the intrinsic alignments to shed light on the nature of dark energy,” notes Taruya.
Reference: “First Constraints on Growth Rate from Redshift-space Ellipticity Correlations of SDSS Galaxies at 0.16 < z < 0.70” by Teppei Okumura and Atsushi Taruya, 13 March 2023, The Astrophysical Journal Letters.
In the latest DM news, axionic dark matter, clearly seen in a fuzzy galaxy, resembles flowers, causes artists to generate light trains that wind around invisible galaxy-sized hills on their way to us lucky tightly-packed artistic galactic gravity ghost observers.
On the LIGO data-file over-massaging front, 10 nonlinear equations are just now making “harmonic coordinates” famous as the latest wavy focusing asset in the gravity data matrix toolbox. Another in a long line of stability-enhancing features, one might wonder if LIGO spacetime anti-blowup “harmonic coordinates” fit the scale of packed ghost-galaxy-swerving axion waves perfectly.
Are you smoking heavy “weed”!?
Your avatar is offensive and culturally-inane for anyone but a blackface catclaw jackass. History will be kinder to you if you ignore me.
I don’t care for threats, but of course you still come over as not discussing a topic in a sane manner.
It becomes even inaner when you are rude while implying I am rude, and making a response implying I am stalking [? how – first comment here] you.
Your mother must have raised you to be rude to your betters. Just a reminder – do not trail me any more, it just makes you a stalking gravity jackass.
Who is Einstein? Is he the creator of the world?
The image in the latest news about axions seen in lensed galaxies appears to be show the effect on light from two sources of concentric galactic-scale vector gravity ripples interfering together where the two sources are the lensing galaxy and the lensed galaxy. It is best viewed as an ultra-slow momentum-conserving longitudinal roll, or “pitch,” in quantum gravity carriers and allowing them to be their own antiparticles by rotation phase reversal.
As I’ve essentially noted before, a proton-centric variation on Dirac’s variable gravity “Large Number’s Hypothesis” sets the ripple scale close to proton diameter (about 10 to the -15th power meters) rescaled by G/E force ratio between touching protons (10 to the 36th power) yielding 100 thousand light-years, which could be viewed as a dimensionless ratio-synthetic energy balance in paired E = Force times distance ratio form: force of proton’s gravity multiplied by galaxy-crossing distance equals force of proton’s charge times proton-pair crossing distance. If DM was so massive and not gravity itself, it seems to me it wouldn’t organize itself in a way so strongly centered around luminous sources.
Meant to describe the ripple effect as “best viewed as an ultra-slow angular momentum-conserving longitudinal roll, or “pitch,” in quantum gravity information carriers, allowing them to be their own antiparticles by field carrier rotation phase reversal.
HS 0810+2554 is the subect lensing effect with galaxy-sized ripples. My take on the shape of the interference is that the lensed-lensing galaxies involved are separated by almost ten ripple wavelengths.
It’s not hard to find patterns of ripples interfering that will show a radial ray effect. With three sources interfering a honeycomb effect become more obvious. Of course, general relativity rules out a concentric ripple effect in gravity and, as ever, dark matter is failure of general relativity that can never be countenanced by Einstein’s gravity theory fanatics.
When you take a look at this, it’s apparently two lensed galaxy images surrounding a brighter foreground lensing galaxy. Since the light path has extra curving evident at the galactic scale (superficially recognized by a picture provided at another website by Arnuth), each lensed image carries with it indications of the concentric waves surrounding the lensed object. The foreground ripple spacing of the lensing object is presumably slightly larger than the two sets of ripples from respective lensed galaxy images. The result is most of what you can see in the image of HS 0810+2554, there’s an extremely regular honeycomb pattern apparently formed by interference in three interesting ripple effects, and many radial spikey effects also reminiscent of radiating spikey effects common between extremes in ripple interfere patterns.
Arnuth’s drawing resembles a cartoon mouse in relief, doubled from two to four ears by reflection, all that replaces a simple lensing mass-ball-depressed rubber tramp. So it’s evident to me it’s just a wild axion-inspired guess from the guy who thinks the picture proves axions are dark matter.
I took another look at the pattern and apparently the overexposed brightness makes it difficult to see the larger spot is two other lensed image copies largely overlapping.
So there are in total four lensed images with concentric ripples interfering, where one is mostly doubled up. thus it looks like three sources of equivalent wavelength ripples.
It should only take three or four transparencies, each carrying peripherally-faded concentric ripples on them, to duplicate most of the wavy effect in the image of HS 0810+2554. That should be very easy to check and I’ll get around to it eventually. Better if stationary ripples are used to show why strong long-term arm symmetry is very common in evolving spiral galaxies compared to being transitory and noisy moments in simulations with WIMPlike DM.
For a good example of waves interfering – Try an image search on
“Fundamental Photographs – The Art of Science
INTERFERENCE PATTERNS OF TWO POINT SOURCES”
Seems likely two partly-opaque copies of the interference image seen by that search string can be superimposed with an angle around 30 degrees to do a good job explaining the lensing pair waves.
One thing to keep in mind is that although everything appears stationary at this distance, the wave effects are fundamentally stationary with respect to the sources, quantum gravity effect carriers always begin pointing the same way as normal gravity, in other words, as they are quantum gravity wave effects, not expanding dynamic waves like water ripples or waves from spinning gravitational binaries. Each of the particles in streams forming the waves are constantly rotating in an ultraslow somersault fashion, however. It could be said that quantum carriers of gravity information are as small as the stationary waves they create are large.
I misspelled the axion artist’s name. Oh well.
Also, there is about a 60-degree angle evident between paired ripple sources in HS 0810+2554, not 30 degrees. To recreate it best I suppose two of the four sources nearly overlap. The overall 4-point lens highlight spot effect has geometry reminiscent of vertices of a tetrahedron, and apparently relates to the four basic fuzzy Lagrange points around the lens-or and lens-ed masses.
The image link I gave gets a lot of help from some less-curved background waves, but a gravitational focus property of cold gas implies that more distant galaxies out of the frame can retro-reflectively play with the picture strongly too.
Last notes here on this –
The HST is the observing platform and it has a history involving an added optical correction processing. Waiting for the JWT to confirm.
I’m also very familiar with how easy it is to confuse telescope optic focus aberration with the result of a gravity model featuring a stationary concentric ringing effect.
General relativity rules. This is interesting, especially in the context of the recent ACT telescope observations that are – in a first – used to probe the early universe before recombination (so before the cosmic background radiation was released). They see a low Hubble rate and find that modifying early general relativistic LCDM theory is unlikely to be the explanation for high Hubble rate observations.
“The consistency of our r_s- independent and r_s-based inferences of H_0 provides significant support to the idea that the standard LambdaCDM model accurately describes the pre-recombination universe. Although r_s-independent H_0 inferences become less constraining in many extended models (Smith et al. 2022), the comparison of r_s-based and r_s-independent constraints is nevertheless a non-trivial null test for LambdaCDM (e.g., Farren et al. 2022; Philcox et al. 2022; Brieden et al. 2022), which the model currently passes. The consistency observed here does not provide support to models that attempt to increase the inferred value of H_0 via changes to sound horizon physics.”
[“DR6 Gravitational Lensing Map and Cosmological Parameters”, ACT collaboration.]
… Frankenstain physics is not end story…