Galaxy filament

As filaments (from the Latin filum, thread ' ) refers to the thread-like compounds in the universe between galaxy clusters and superclusters with a higher local galaxy density at large cavities ( voids) around.


Any theory of the origin of these structures on scales greatest need the arrangement of these gaps / cavities / voids explain the (326 million light years = ) occur in the order of about 100 mega parsecs.

If (c = 0.002) attaches the typical airspeed of a galaxy at about 600 km / s, it would take 163 billion years, to a galaxy would have passed through such a gap, or about twelve times the age of the universe (about 13.7 billion years). Consequently, it is extremely unlikely that the gaps were formed by an outward movement of the galaxies.

The galaxies must have formed relative to the voids, where they are currently, and the voids reflect the distribution of galaxies at the time of their creation.

Since baryonic ( interacting with radiation, "normal" ) matter was much too homogeneous in the early universe to gravitationally to form such structures is likely to we have completely exotic appearing dark matter, which is our gratitude to the galaxies movements only by its gravitational effect, have had a structure-building.

Even our own Milky Way, which is about 2.5 million light-years distant Andromeda galaxy, the other members of the Local Group and nearby groups of galaxies that form the center of the Virgo cluster of galaxies in 65 million light years away and the center of the Coma cluster ( Abell 1656) and the Leo cluster of galaxies ( Abell 1367 ) in about 300-450 million light years distance, a vast filament. Perhaps even the Great Wall of this Coma- Virgo supercluster. This cobweb structure moves to Norma, south of Scorpio, in the direction of the Great Attractor.

History's only visible indication for filaments produced a gas cloud around the quasar UM287, which is at least 2 million light -years across.

Web Links / Videos

  • Analysis of the galaxy distribution ( AVI Video)
  • Identification of the structural elements (3 AVI videos )
  • Soap Bubbles and Voids
  • Rotation axes of galaxies noticeably aligned voids ( astro.uni )