Galaxy Cluster Abell 1689 Magnifies the Dark Universe

This video zooms in on the galaxy cluster Abell 1689. Overlaid in purple is the distribution of dark matter in the galaxy cluster. The distribution of normal and dark matter in the lens, the relative geometry of the lens and distant galaxies behind the cluster, and the effect of dark energy on the geometry of the universe, together explain the distorted shapes of some of the galaxies visible here. Astronomers are able to use this relationship to probe the properties of dark energy.

What's the matter with this cluster of galaxies? To find out what forms matter takes in the Abell 1689 cluster requires not only deep images from telescopes like the Hubble Space Telescope, but detailed computer modeling as well. To start, almost every fuzzy yellow patch in the above image is an entire galaxy. A close inspection, however, shows that many background galaxies are strangely magnified and distorted into long curving arcs by the gravitational lens deflections of the cluster. Computer analyses of the placement and smoothness of these arcs indicate that in addition to the matter in the galaxies you can see, the cluster must also contain a significant amount of dark matter such as the model digitally superposed in purple. Now Abell 1689 remains enigmatic because the arcs are so numerous and diverse that no single dark matter model has emerged that can explain them all and still remain consistent with dark matter models needed to constrain their motion. Still, the detailed information available from clusters of galaxies like Abell 1689 gives hope that one day full solutions will be found that will not only fully reveal the dark matter in clusters, but also reveal the amounts of dark energy in the universe needed to lie along the line of sight to the distant arcs.

Category:

Science & Technology

Tags:

• Galaxy
• Cluster
• Abell
• 1689
• Cosmology
• NASA
• ESA
• ESO
• Hubble
• Space
• Telescope

[CACBCCCU]

The cluster gives me the impression a crease can form between masses under certain conditions, looking at it in the 2-dimensional terms of the elastic sheet model. A circular tunnel-like lensing effect would come from rotating the 2D crease around the visual axis to make it 3D. IDK, maybe a crease could arise from some sort of quantum gravitational entanglement, something like closed graviton cycles, with the local cluster, which maybe has a particularly-close history with the cluster shown.

[CACBCCCU]

As I understand it, dark matter effects are seen in two different ways - by the lensing effects seen here and by galactic spin profiles as measured using photo comparisons. The spin effect is apparently considered a cold dark matter type of effect, while the lensing effects are apparently considered more like a warm dark matter type of effect, which I suppose conforms better with the roundness of the lensing arcs. Dark spin and dark lensing would seem to be better descriptions, being GR-neutral.

[CACBCCCU]

Seems the long flat doubly-lensed galaxy image in the lower left corner (~8 o'clock angle) at 0:45 illustrates a bipolar nature in quantum gravity, in that the line of the image appears to double-back over itself at both ends, light spreads into overlap from the central zero-radius positive gravity maxima and also from a pair of surrounding nonzero radius secondary gravity maxima forming the ends of the image.

[CACBCCCU]

@Rockster1997

I wish I could prove it. I've recently been thinking of going back to the first university I attended, doing nothing definite about it yet. I dropped out from there around 1978, but it was engineering then, not simulations or quantum physics. Then, I see a new news article about gravity lensing quoting someone from that university, and I get a miscellaneous letter from that university, though I haven't gotten one from them in decades. Guess that seals it, just a matter of time.

[Rockster1997]

@CACBCCCU ... Your smart!!!

[drtony999]

What's the size of this cluster?

[CACBCCCU]

At 0:46 there are two pairs of concentric lensing lines, one pair at the 2 o'clock position and another pair at the 6 o'clock position. Both pairs are equally spaced. I think this could be best explainable using a wave correction to steady-state gravity replacing G with Gcos[(2pi)(r)(Fpp(g))/(diam(p)­)(Fpp(e))] where

diam(p)=proton diameter=~10^-15 meters; Fpp(e)/Fpp(g)=ratio of electric force to gravity between two close protons=~10^36. The modification also allows matter-antimatter layering.

[CACBCCCU]

This reminds me of the chaotic light patterns one sees when peering inside a stack of mirrored spheres. Could be totally wrong here, but I get the impression these galaxies are underestimatedly dense matter cores surrounded by antimatter. Assuming antimatter has negative mass, it seems the effect of the antimatter envelope could be somewhat refractive or opalescent to the extent that the lensing in that part is apparently the opposite of conventional gravity lensing.

[CACBCCCU]

It screams young triplets of galaxies. Thanks.

[CACBCCCU]

I tried squinting at the last frame, to see if it would help. FWIW, the "purple" (which looks blue on my monitor, but then again I like to tune down the red quite a bit) looks vaguely like an odd pair of spheres. At the center of the larger sphere is a triangular formation. For whatever reason, the two extremely bright starlike objects fit right in with a comparison I could make, but I'm going to decline to make it because it could elicit extreme drama from some authoritarian-type.