A void galaxy is a

galaxy A galaxy is a Physical system, system of stars, stellar remnants, interstellar medium, interstellar gas, cosmic dust, dust, and dark matter bound together by gravity. The word is derived from the Ancient Greek, Greek ' (), literally 'milky', ...

located in a cosmological void. Few galaxies exist in voids; most are located in sheets, walls and filaments that surround voids and supervoids. Many void galaxies are connected through void filaments or tendrils, less massive versions of the regular galaxy filaments that surround voids. These filaments are often straighter than their non-void counterparts due to the lack of influence by surrounding filaments. These filaments can even be rich enough to form poor galaxy clusters. The void galaxies themselves are thought to represent pristine examples of galactic evolution, having few neighbours, and likely to have formed from pure intergalactic gas.

Formation

It is theorised by many astrophysicists that void galaxies are the result of large galactic filaments being pulled by the gravity of a major super cluster out of the less densely populated areas, causing voids such as the

Boötes Void file:boovoid.png, 259x259px, A map of the Boötes Void The Boötes Void ( ) (colloquially referred to as the Great Nothing) is a roughly Sphere, spherical region of Interstellar medium, space in the vicinity of the constellation Boötes. It contain ...

to grow. Galaxies such as the spiral galaxy MCG+01-02-015 are sometimes left behind from such events.

List of void galaxies

References

External links

* {{DEFAULTSORT:Void Galaxy Galaxies

Galaxy A galaxy is a Physical system, system of stars, stellar remnants, interstellar medium, interstellar gas, cosmic dust, dust, and dark matter bound together by gravity. The word is derived from the Ancient Greek, Greek ' (), literally 'milky', ...

Formation

List of void galaxies

See also

References

External links