Interactive visualization of the fully nonlinear gravitationally induced trajectories of a nearly complete set of galaxies, groups, and clusters in the Local Supercluster constructed in a Numerical Action Method (NAM) model constrained by data from the CosmicFlows survey and various distance indicators. The Virgo, Fornax, Antlia and Virgo W clusters are represented by large spheres colored red, khaki, black, and purple, respectively. The Milky Way and M31 galaxies are shown by smaller spheres colored yellow and green, respectively. Others are colored blue. The time evolution runs from the past 13.25 billion years to present.
phinds said:"dark flow" seems to be a very problematic theory: https://en.wikipedia.org/wiki/Dark_flow
You have the first part right. "Dark Flow" is a supposed anomaly in that it has a preferred direction. Did you not read the Wikipedia article?Arman777 said:The idea is really interesting. But I didnt quite get it. Isn't it normal that galaxies move towards clusters ? Galaxies can have peculiar velocities and can be attracted to clusters due to gravity.
In description of dark flow it says ""non random" ? peculiar velocity is a random motion yes but its caused by gravity right so what is this extra motion ?
or am I missing something ?
Oh wait I see now,phinds said:You have the first part right. "Dark Flow" is a supposed anomaly in that it has a preferred direction. Did you not read the Wikipedia article?
According to their paper, the model does include the affects of the "Great Attractor."Arman777 said:Its very interesting..I am not sure but are all of the galaxies approaching to clusters for example to the Virgo ?
I search something and find this
"What I think is the most amazing fact about the supercluster, is that in http://www.fromquarkstoquasars.com/the-future-of-the-universe/, the gravitational attraction between galaxies and clusters will have pulled it all into a single, enormous, writhing mass of stars. At this time, other superclusters will also be converging together, separated by billions of light years http://www.fromquarkstoquasars.com/everything-you-need-to-know-about-dark-energy/. However, something interesting that you may be familiar with is that astronomers have actually noticed an unusual movement of galaxy clusters within the supercluster. Many are moving in the direction of the Norma Cluster, but it is very difficult to see why because of the large amount of material in the Milky Way’s plane. For now this has been dubbed the ‘Great Attractor’ due to its unexplained tug. It may, in fact, be http://www.fromquarkstoquasars.com/dark-flow/: a mysterious force tugging on galaxy clusters from beyond http://www.fromquarkstoquasars.com/from-quark-to-quasar-the-observable-universe-2/."
(https://www.quora.com/What-is-a-virgo-supercluster)So my question makes sense or in general it makes sense and its amazing. Can we see Norma cluster in this interactive model, or its affects?
In addition, the alignment of major masses, from the Shapley Concentration (Raychaudhury 1989; Scaramella et al. 1989) through the Norma−Centaurus−Hydra complex (Great Attractor) (Lynden-Bell et al. 1988), to the Perseus−Pisces filament (Haynes & Giovanelli 1988) creates a strong tidal field at our location (Lilje et al. 1986; Dekel et al. 1999; Romano-D ́ıaz et al. 2005).
Thats nice..Its hard to see in the model I guess..I wish they could give it a color.|Glitch| said:According to their paper, the model does include the affects of the "Great Attractor."
The Local Supercluster is a structure consisting of several galaxy clusters and galaxy groups, including our own Milky Way galaxy. It is approximately 110 million light years in diameter and contains about 100,000 galaxies.
The Local Supercluster is not stationary and is constantly moving through the universe. It is currently moving towards the Shapley Supercluster at a speed of about 600 km/s.
Gravity plays a major role in the action dynamics of the Local Supercluster. It is the force that holds the galaxies and clusters together and determines their movement within the structure.
The Local Supercluster's gravitational pull can affect the motion of galaxies within it, causing them to either move towards or away from the center of the structure. This can also lead to interactions and mergers between galaxies.
The Local Supercluster is just one small part of the larger structure of the universe. However, its gravitational influence can have an impact on the motion and distribution of galaxies within a larger scale. It is also thought to be connected to other superclusters and filaments in the universe through the cosmic web.