Astronomy:Void galaxy

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Short description: Galaxy found in a cosmological void


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

This list is incomplete; you can help by expanding it.
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

See also

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 Dec 2009). "The Cosmically Depressed: Life, Sociology and Identity of Voids". Galaxies in Isolation: Exploring Nature Versus Nurture 421: 99. Bibcode: 2010ASPC..421...99V. 
  2. ↑ Schmidt, K.-H.; Bohm, P.; Elsasser, H. (February 1997). "On the emptiness of voids". Astronomische Nachrichten 318 (2): 81. doi:10.1002/asna.2113180204. Bibcode: 1997AN....318...81S. 
  3. ↑ Kuhn, B.; Hopp, U.; Elsaesser, H. (February 1997). "Results of a search for faint galaxies in voids.". Astronomy and Astrophysics 318: 405–415. ISSN 0004-6361. Bibcode: 1997A&A...318..405K. 
  4. ↑ 4.0 4.1 Park, Daeseong; Lee, Jounghun (December 2009). "The Bridge Effect of Void Filaments". Monthly Notices of the Royal Astronomical Society 400 (2): 1105–1108. doi:10.1111/j.1365-2966.2009.15524.x. Bibcode: 2009MNRAS.400.1105P. 
  5. ↑ Alpaslan, Mehmet; Robotham, Aaron S. G.; Obreschkow, Danail; Penny, Samantha; Driver, Simon; Norberg, Peder; Brough, Sarah; Brown, Michael et al. (2014-05-01). "Galaxy and Mass Assembly (GAMA): fine filaments of galaxies detected within voids". Monthly Notices of the Royal Astronomical Society: Letters 440 (1): L106–L110. doi:10.1093/mnrasl/slu019. Bibcode: 2014MNRAS.440L.106A. 
  6. ↑ Petrov, G.T.; Slavcheva-Mihova, L.; Kopchev, V. (2007). "Studies of Selected Voids. Faint Galaxies in the Direction of the Void 0049+05". Bulg. J. Phys 34 (2): 385–390. http://servo.aob.rs/eeditions/CDS/Srpsko%20bugarska%20konferencija/5/presentations/Petrov.pdf. 
  7. ↑ Van De Weygaert, Rien; Platen, Erwin (2011). "Cosmic Voids: Structure, Dynamics and Galaxies" (in en). International Journal of Modern Physics: Conference Series 01: 41–66. doi:10.1142/S2010194511000092. ISSN 2010-1945. Bibcode: 2011IJMPS...1...41V. 
  8. ↑ Dvorsky, George (6 July 2012). "Behold the Boötes void, the spookiest place in the cosmos" (in en-US). https://io9.gizmodo.com/behold-the-bootes-void-the-spookiest-place-in-the-cosm-5923493. 
  9. ↑ 9.0 9.1 "Hubble Sees Two Dwarf Galaxies in Pisces". Sci-News. 15 August 2016. http://www.sci-news.com/astronomy/hubble-dwarf-galaxies-pisces-04103.html. 
  10. ↑ Tully, Brent. "The Local Void". http://amiga.iaa.es/FCKeditor/UserFiles/File/cig09/Tully.pdf. 
  11. ↑ "The loneliest of galaxies". Hubble Space Telescope. 9 November 2015. http://www.spacetelescope.org/images/potw1545a/. 
  12. ↑ "MCG+01-02-015". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=MCG%2B01-02-015. 
  13. ↑ "NASA's Hubble Space Telescope Focuses on Lonely Galaxy" (in en-US). 2015-11-09. https://www.sci.news/astronomy/science-nasas-hubble-lonely-galaxy-03417.html. 
  14. ↑ "Hubble Views a Lonely Galaxy". November 18, 2015. https://www.spacedaily.com/reports/Hubble_Views_a_Lonely_Galaxy_999.html. 
  15. ↑ 15.0 15.1 15.2 15.3 15.4 15.5 15.6 15.7 15.8 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. doi:10.1086/318868. Bibcode: 2001ApJ...546L..91K. 
  16. ↑ 16.0 16.1 16.2 16.3 16.4 16.5 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. doi:10.1086/324739. Bibcode: 2002AJ....123..142C. 
  17. ↑ 17.00 17.01 17.02 17.03 17.04 17.05 17.06 17.07 17.08 17.09 17.10 17.11 17.12 17.13 17.14 17.15 17.16 17.17 17.18 17.19 17.20 17.21 17.22 17.23 17.24 17.25 17.26 17.27 17.28 17.29 17.30 17.31 17.32 17.33 17.34 17.35 17.36 17.37 17.38 17.39 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" (in en). The Astrophysical Journal 864 (2): 144. doi:10.3847/1538-4357/aad86e. ISSN 0004-637X. Bibcode: 2018ApJ...864..144D. 



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