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Void galaxy

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Void galaxy

Void galaxies are galaxies which exist in cosmological voids.[1] Few galaxies exist in voids; most galaxies exist in sheets, walls and filaments that surround voids and supervoids.[2][3] Many of the void galaxies are connected through void filaments, lightweight versions of the regular galaxy filaments that surround voids, to each other. These filaments are often straighter than their regular counterparts due to the lack of influence by surrounding filaments.[4] These filaments can even be rich enough to form poor groups of galaxies.[5] 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.[6]

List of void galaxies

Galaxy Void Filament Notes Comments
PC 1357+4641 Bootes Void [7] Emission-line Galaxy
IRAS 14288+5255 Bootes Void [7] AGN X-ray source
G 1432+5302 Bootes Void [8] Starburst galaxy
G 1458+4944 Bootes Void [8] LINER galaxy
G 1507+4554 Bootes Void [8] Starburst galaxy
G 1510+4727A & G 1510+4727B Bootes Void [8] Interacting galaxy pair
BHI 1514+3819 Bootes Void [7]
FSS 1515+3823 Bootes Void [7]
G 1517+3949 Bootes Void [8] Starburst galaxy
G 1517+3956A & G 1517+3956B Bootes Void [8] Interacting galaxy pair
IRAS 15195+5050 Bootes Void [7] AGN X-ray source
Markarian 845 Bootes Void [7] Seyfert 1 (X-ray source)
CG 547 Bootes Void [7] Emission-line Galaxy
CG 637 Bootes Void [7] Emission-line Galaxy
CG 922 Bootes Void [7] Emission-line Galaxy

References


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