Field galaxy

From Wikipedia, the free encyclopedia
Jump to: navigation, search

A field galaxy is a galaxy that does not belong to a larger cluster of galaxies and hence is gravitationally alone.

Roughly 80% of all galaxies located within 5 Mpc (16 Mly) of the Milky Way are in groups or clusters of galaxies.[1] Most low-surface-brightness galaxies are field galaxies.[2] The median Hubble-type of field galaxies is Sb, a type of spiral galaxy.[3]

List of field galaxies[edit]

A list of nearby relatively bright field galaxies within the Local Volume, about 10 Mpc (33 Mly)[4]

Galaxy Type Size Constellation RA DEC Distance Notes
NGC 1313 SB(s)d Reticulum 03h 18m 15.4s −66° 29′ 50″ 12.89 Mly (3.95 Mpc) Nicknamed the "Topsy Turvy Galaxy" due to its uneven shape [4]
NGC 2188 Sm Columba 06h 10m 09.7s −34° 06′ 50″ 27.5 Mly (8.4 Mpc) [4]
NGC 2683 Sc Lynx 08h 52m 41.3s +33° 25′ 18″ 32.9 Mly (10.1 Mpc) [4]
NGC 2903 SBbc Leo 09h 32m 10.1s +21° 30′ 03″ 30.6 Mly (9.4 Mpc) [4]
NGC 3115 S0 Sextans 10h 05m 14.0s −7° 43′ 07″ 31.6 Mly (9.7 Mpc) [4]
NGC 3621 SA(s)d Hydra 11h 18m 16.5s –32° 48′ 51″ 21.7 Mly (6.7 Mpc) [4]
NGC 4136 SABc Coma Berenices 12h 09m 17.7s +29° 55′ 39″ 40.9 Mly (12.5 Mpc) [4]
NGC 4605 SB(s)c Ursa Major 12h 39m 59.4s +61° 36′ 33″ 15.3 Mly (4.7 Mpc) [4]
NGC 5068 SAB(rs)cd Virgo 13h 18m 54.8s −21° 02′ 21″ 19.8 Mly (6.1 Mpc) [4]
NGC 6503 SA(s)cd
LINER
30 kly (9.2 kpc) Draco 17h 49m 26.514s +70° 08′ 39.63″ 18.5 Mly (5.7 Mpc) Also called the "Lost-In-Space galaxy" due to its location next to the Local Void. [4][5][6][7]

Further reading[edit]

References[edit]

  1. ^ Astronomische Nachrichten, "On the Emptiness of Voids", Schmidt, K.-H.; Bohm, P.; Elsasser, H.; vol. 318, no. 2, p. 81, Bibcode1997AN....318...81S
  2. ^ "An Introduction to Galaxies and Cosmology", David J. Adams and others
  3. ^ a b Pieter G. van Dokkum (27 June 2005). "The Recent and Continuing Assembly of Field Ellipticals by Red Mergers". The Astronomical Journal (published December 2005). 130 (6): 2647–2665. arXiv:astro-ph/0506661Freely accessible. Bibcode:2005AJ....130.2647V. doi:10.1086/497593. 
  4. ^ a b c d e f g h i j k Materne, J. (April 1979). "The structure of nearby groups of galaxies - Quantitative membership probabilities". Astronomy and Astrophysics. 74 (2): 235–243. Bibcode:1979A&A....74..235M. 
  5. ^ "Lonely galaxy lost in space". Space Daily. 11 June 2015. 
  6. ^ "NGC 6503". NASA/IPAC Extragalactic Database. 
  7. ^ "NGC 6503 -- LINER-type Active Galaxy Nucleus". SIMBAD. 
  8. ^ Piero Madau; Lucia Pozzetti; Mark Dickinson (25 August 1997). "The Star Formation History of Field Galaxies". The Astrophysical Journal (published May 1998). 498 (1): 106–116. arXiv:astro-ph/9708220Freely accessible. Bibcode:1998ApJ...498..106M. doi:10.1086/305523.