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void galaxy
Void galaxies are galaxies which exist in cosmological voids.〔 arXiv, "The Cosmically Depressed: Life, Sociology and Identity of Voids", Rien van de Weygaert et al., ''17 Dec 2009'', , 〕 Few galaxies exist in voids; most galaxies exist in sheets, walls and filaments that surround voids and supervoids.〔 Astronomische Nachrichten, "On the emptiness of voids", Schmidt, K.-H.; Bohm, P.; Elsasser, H., 'vol. 318, no. 2', ''02/1997'', 〕〔 Astronomy and Astrophysics, "Results of a search for faint galaxies in voids", Kuhn, B.; Hopp, U.; Elsaesser, H.;, 'v.318', ''02/1997'', 〕 Many of the void galaxies are connected through ''void filaments''〔 or ''tendrils'',〔 Monthly Notices of the Royal Astronomical Society; "Galaxy and Mass Assembly (GAMA): fine filaments of galaxies detected within voids"; M. Alpaslan, A. S. G. Robotham, D. Obreschkow, S. Penny, S. Driver, P. Norberg, S. Brough, M. Brown, M. Cluver, B. Holwerda, A. M. Hopkins, E. van Kampen, L. S. Kelvin, M. A. Lara-Lopez, J. Liske, J. Loveday, S. Mahajan, K. Pimbblet; ''9 March 2014'', , , 〕 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.〔 Monthly Notices of the Royal Astronomical Society, "The Bridge Effect of Void Filaments", Daeseong Park, Jounghun Lee, 'Volume 400, Issue 2', ''12/2009'', , , 〕 These filaments can even be rich enough to form poor groups of galaxies.〔 "Studies of Selected Voids. Faint Galaxies in the Direction of the Void 0049+05", G.T. Petrov, L. Slavcheva-Mihova, V. Kopchev, ''2007' '〕 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.〔 arXiv, "Cosmic Voids: structure, dynamics and galaxies", Rien van de Weygaert, Erwin Platen, ''16 Dec 2009'', , 〕
==List of void galaxies==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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