Void galaxy
Galaxy found in a cosmological void
From Wikipedia, the free encyclopedia
A void galaxy is a galaxy located in a cosmological void.[1] Few galaxies exist in voids; most are located in sheets, walls and filaments that surround voids and supervoids.[2][3] Many void galaxies are connected through void filaments[4] or tendrils,[5] 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.[4] These filaments can even be rich enough to form poor galaxy clusters.[6] 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.[7]
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 to grow. Galaxies such as the spiral galaxy MCG+01-02-015 are sometimes left behind from such events.[8]
List of void galaxies
| Galaxy | Picture | Void | Filament | Notes | Comments |
|---|---|---|---|---|---|
| Pisces A |  |
Local Void | [9] | ||
| Pisces B |  |
[9] | |||
| NGC 7077 |  |
[10] | |||
| NGC 6503 | .jpg) |
||||
| NGC 6789 |  |
||||
| MCG +01-02-015 |  |
0049+05 Void | [11][12][13][14] | LEDA 1852 (Pisces) | |
| LEDA 3096313 |  |
Boötes Void | [15] | Emission-line galaxy | |
| LEDA 84225 |  |
[15] | AGN X-ray source | ||
| LEDA 87383 |  |
[16] | Starburst galaxy | ||
| LEDA 2790865 |  |
[15][16] | LINER galaxy,
Emission-line Galaxy | ||
| LEDA 87386 |  |
[16] | Starburst galaxy | ||
| LEDA 87385 |  |
[16] | Interacting galaxy pair | ||
| LEDA 101388 |  |
[15] | Seyfert 2 galaxy | ||
| LEDA 101389 |  |
[15] | Elliptical galaxy | ||
| LEDA 100709 |  |
[16] | Starburst galaxy | ||
| LEDA 54705 |  |
[16] | Interacting galaxy pair | ||
| MCG +09-25-043 |  |
[15] | AGN X-ray source | ||
| Markarian 845 |  |
[15] | Seyfert 1 (X-ray source) | ||
| LEDA 87384 |  |
[15] | Emission-line Galaxy | ||
| LEDA 2103063 |  |
[15] | |||
| LEDA 1147360 |  |
[17] | Active galaxy nucleus candidate | ||
| SDSS J123644.69+003348.1 |  |
[17] | Active galaxy nucleus candidate | ||
| LEDA 1166549 |  |
[17] | HII galaxy | ||
| 2dFGRS TGN266Z051 |  |
[17] | Seyfert 1 | ||
| 2MASX J12401820-0011064 |  |
[17] | Seyfert 1 | ||
| LEDA 1160233 |  |
[17] | Active galaxy nucleus candidate | ||
| LEDA 1161018 |  |
[17] | |||
| LEDA 1186186 |  |
[17] | Active galaxy nucleus candidate | ||
| LEDA 1110510 |  |
[17] | Active galaxy nucleus candidate | ||
| MCG +00-25-010 |  |
[17] | Seyfert 1 | ||
| GAMA 279943 |  |
[17] | Active galaxy nucleus candidate | ||
| LEDA 2653526 |  |
[17] | Active galaxy nucleus candidate | ||
| SHOC 239 |  |
[17] | HII galaxy | ||
| LEDA 2790881 |  |
[17] | Seyfert 1 | ||
| MaNGA 43-22 |  |
[17] | Active galaxy nucleus candidate | ||
| LEDA 29070 |  |
[17] | Active galaxy nucleus candidate | ||
| LEDA 28747 |  |
[17] | Active galaxy nucleus candidate | ||
| LEDA 2534153 |  |
[17] | Active galaxy nucleus candidate | ||
| MCG +10-15-008 |  |
[17] | Active galaxy nucleus candidate | ||
| Markarian 234 |  |
[17] | HII galaxy,
Active galaxy nucleus candidate | ||
| LEDA 2677771 |  |
[17] | Seyfert 1 | ||
| LEDA 3129299 |  |
[17] | Active galaxy nucleus candidate | ||
| LEDA 3132190 |  |
[17] | HII galaxy | ||
| NSA 12777 |  |
[17] | Seyfert 1 | ||
| LEDA 2675385 | [17] | Active galaxy nucleus candidate | |||
| SHOC 306 | [17] | HII galaxy | |||
| ASK 047216.0 | [17] | Active galaxy nucleus candidate | |||
| Markarian 89 | [17] | Seyfert 1 | |||
| SHOC 461 | [17] | HII galaxy | |||
| LEDA 2678872 | [17] | HII galaxy, Seyfert 1 | |||
| NSA 12860 | [17] | Active galaxy nucleus candidate | |||
| LEDA 3139336 | [17] | ||||
| LEDA 2815866 | [17] | Emission-line Galaxy | |||
| LEDA 2690461 | [17] | Active galaxy nucleus candidate | |||
| Z 19-3 | [17] | Active galaxy nucleus candidate | |||
| LEDA 4006977 | [17] | ||||
| LEDA 1206223 | [17] | Active galaxy nucleus candidate | |||
| NSA 14156 | [17] | ||||
| LEDA 1214845 | [17] | Active galaxy nucleus candidate | |||
| LEDA 1223466 | [17] | Active galaxy nucleus candidate | |||
| KK 242 | satellite galaxy of NGC 6503 |
