Quasar Dynamics

On January 13, 2013, the largest “structure” in the universe ever seen was recorded by the Sloan Digital Sky Survey.  "Structure" here refers to any gravitationally bound group of objects.  An uninspiring name was given to it: Huge-LQG (an LQG is a Large Quasar Cluster), just like the previously named largest structure, Sloan Great Wall.  Huge-LQC?  Sloan?  Those are such lame names for the most imposing objects in the whole universe!  The incomprehensible thing about Huge-LQG is that (apparently) it is only comprised of 73 quasars and its peak diameter is four billion light years long.  The largest diameter of Sloan Great Wall is only 1.3 billion light years, and it is made up of millions of black holes.  The question is, how can only 73 quasars have three times as extensive a gravitational field as a wall with millions of galaxies? 

Quasars are supermassive black holes that contain so much energy that they spit out jets of material perpendicularly to their planes.  They are thought to be remnants of the distant past, from the farthest corners of the universe, where light has the farthest to travel.  Since black holes have galaxies surrounding them, it can logically be assumed that quasars are surrounded by supermassive galaxies.  But how supermassive are they?  Consider the size of the Sloan Great Wall; the wall is composed of hundreds of galactic superclusters, each having local clusters in themselves, and each of them containing hundreds of galaxies in themselves.  The Sloan Wall is estimated to have millions of galaxies... millions, and there are many other walls just like it, though not quite as big.  We can’t see how big our own wall is, because the light from the Milky Way is blocking our plane of vision.  Little is known about quasar clusters, but in order for the math to work there needs to either be hundreds of other, unseen quasars in the cluster, or there is so much material burning from their cores that they are forming unseen stars and galaxies themselves.  There's no way that only 73 quasars can have three times as much gravitational influence as a "wall" hosting millions of regular black holes.  These unseen galaxies might make up a good portion of the lack of visible mass that the gravitational calculations require.  In fact, these quasars have most likely already burned out and left behind millions of less luminous galaxies, since the light from them has taken about 4 billion years to reach Earth.  It’s also likely that our own galaxy was part of the material that burned out of a quasar long ago.   

The quasar clusters are what may have formed these great walls permeating through space.  In fact, it makes perfect sense when you visualize the situation.  The streaming material that bursts from their cores most likely leaves linear trails of matter, and these trails are probably what give the form of the apparent “pathways” that wall structures like Sloan Wall have.  If you visualize Sloan Wall, it looks more like a sheet of paper than a globular blob.  Astronomers have yet to figure out why these walls take planar shapes, but if you think about the dragging extractions of quasar material it might paint a plausible picture.  According to my math, Sloan Wall must have been the product of about 25 luminous quasars (since it’s one third the size of Huge-LQG), assuming the masses of all quasars in the clusters average about the same amount.