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Void galaxy

A void galaxy is a galaxy 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.

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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.23 Many void galaxies are connected through void filaments4 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
NGC 6789
MCG +01-02-015 0049+05 Void 11121314 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 1516 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
See also

See also

References

References

  1. Rien van de Weygaert; Platen, Erwin; Tigrak, Esra; Hidding, Johan; Thijs van der Hulst; Aragon-Calvo, Miguel A.; Stanonik, Kathryn; Jacqueline van Gorkom (17 December 2009). "The Cosmically Depressed: Life, Sociology and Identity of Voids". Galaxies in Isolation: Exploring Nature Versus Nurture. 421: 99. arXiv:0912.3473v1. Bibcode:2010ASPC..421...99V.
  2. Schmidt, K.-H.; Bohm, P.; Elsasser, H. (February 1997). "On the emptiness of voids". Astronomische Nachrichten. 318 (2): 81. Bibcode:1997AN....318...81S. doi:10.1002/asna.2113180204.
  3. Kuhn, B.; Hopp, U.; Elsaesser, H. (February 1997). "Results of a search for faint galaxies in voids". Astronomy and Astrophysics. 318: 405–415. Bibcode:1997A&A...318..405K. ISSN 0004-6361.
  4. Park, Daeseong; Lee, Jounghun (December 2009). "The Bridge Effect of Void Filaments". Monthly Notices of the Royal Astronomical Society. 400 (2): 1105–1108. arXiv:0905.4277v2. Bibcode:2009MNRAS.400.1105P. doi:10.1111/j.1365-2966.2009.15524.x. S2CID 16612240.
  5. Alpaslan, Mehmet; Robotham, Aaron S. G.; Obreschkow, Danail; Penny, Samantha; Driver, Simon; Norberg, Peder; Brough, Sarah; Brown, Michael; Cluver, Michelle; Holwerda, Benne; Hopkins, Andrew M.; van Kampen, Eelco; Kelvin, Lee S.; Lara-Lopez, Maritza A.; Liske, Jochen; Loveday, Jon; Mahajan, Smriti; Pimbblet, Kevin (1 May 2014). "Galaxy and Mass Assembly (GAMA): fine filaments of galaxies detected within voids". Monthly Notices of the Royal Astronomical Society: Letters. 440 (1): L106–L110. arXiv:1401.7331. Bibcode:2014MNRAS.440L.106A. doi:10.1093/mnrasl/slu019.
  6. Petrov, G.T.; Slavcheva-Mihova, L.; Kopchev, V. (2007). "Studies of Selected Voids. Faint Galaxies in the Direction of the Void 0049+05" (PDF). Bulg. J. Phys. 34 (2): 385–390.
  7. Van De Weygaert, Rien; Platen, Erwin (2011). "Cosmic Voids: Structure, Dynamics and Galaxies". International Journal of Modern Physics: Conference Series. 01: 41–66. arXiv:0912.2997. Bibcode:2011IJMPS...1...41V. doi:10.1142/S2010194511000092. ISSN 2010-1945.
  8. Dvorsky, George (6 July 2012). "Behold the Boötes void, the spookiest place in the cosmos". io9. Retrieved 25 August 2019.
  9. "Hubble Sees Two Dwarf Galaxies in Pisces". Sci-News. 15 August 2016.
  10. Tully, Brent. "The Local Void" (PDF). AMIGA - Analysis of the interstellar Medium of Isolated Galaxies. Archived from the original (PDF) on 15 December 2009.
  11. "The loneliest of galaxies". Hubble Space Telescope. 9 November 2015. Retrieved 10 November 2015.
  12. "MCG+01-02-015". SIMBAD. Centre de données astronomiques de Strasbourg.
  13. "NASA's Hubble Space Telescope Focuses on Lonely Galaxy". Sci.News. 9 November 2015. Retrieved 21 September 2024.
  14. "Hubble Views a Lonely Galaxy". Space Daily. 18 November 2015. Retrieved 21 September 2024.
  15. Kim, Chulhee; Boller, Th.; Ghosh, Kajal K.; Swartz, Douglas A.; Ramsey, Brian D. (January 2001). "Detection of X-Ray Emission from Galaxies inside the Bootes Void". The Astrophysical Journal. 546 (2): L91–L95. Bibcode:2001ApJ...546L..91K. doi:10.1086/318868.
  16. Cruzen, Shawn; Wehr, Tara; Weistrop, Donna; Angione, Ronald J.; Hoopes, Charles (January 2002). "Spectroscopy of Galaxies in the Bootes Void". The Astronomical Journal. 123 (1): 142–158. Bibcode:2002AJ....123..142C. doi:10.1086/324739.
  17. Douglass, Kelly A.; Vogeley, Michael S.; Cen, Renyue (September 2018). "Influence of the Void Environment on Chemical Abundances in Dwarf Galaxies and Implications for Connecting Star Formation and Halo Mass". The Astrophysical Journal. 864 (2): 144. arXiv:1706.07099. Bibcode:2018ApJ...864..144D. doi:10.3847/1538-4357/aad86e. ISSN 0004-637X.
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