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]
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]
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Galaxy | Picture | Void | Filament | Notes | Comments |
---|---|---|---|---|---|
Pisces A | ![]() | Local Void | [9] | ||
Pisces B | ![]() | [9] | |||
NGC 7077 | ![]() | [10] | |||
NGC 6503 | ![]() | ||||
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 |