A field galaxy is a galaxy that does not belong to a larger galaxy group or cluster 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 404 | SA(s)0 | Andromeda | 01h 09m 27.0s | +35° 43′ 04″ | 11.2 Mly (3.4 Mpc) | [4] | ||
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] |
See also
[edit]Further reading
[edit]- Piero Madau; Lucia Pozzetti; Mark Dickinson (1998). "The Star Formation History of Field Galaxies". The Astrophysical Journal. 498 (1) (published May 1998): 106–116. arXiv:astro-ph/9708220. Bibcode:1998ApJ...498..106M. doi:10.1086/305523. S2CID 499769.[8]
- David R. Silva; Gregory D. Bothun (July 1998). "The Ages of Disturbed Field Elliptical Galaxies. I. Global Properties". The Astronomical Journal. 116 (1): 85. Bibcode:1998AJ....116...85S. doi:10.1086/300394.
- David R. Silva; Gregory D. Bothun (December 1998). "The Ages of Disturbed Field Elliptical Galaxies. II. Central Properties". The Astronomical Journal. 116 (6): 2793. Bibcode:1998AJ....116.2793S. doi:10.1086/300642. S2CID 47632172.
- Pieter G. van Dokkum (27 June 2005). "The Recent and Continuing Assembly of Field Ellipticals by Red Mergers". The Astronomical Journal. 130 (6) (published December 2005): 2647–2665. arXiv:astro-ph/0506661. Bibcode:2005AJ....130.2647V. doi:10.1086/497593. S2CID 250814170.[3]
- Anatoly Klypin; Igor Karachentsev; Dmitry Makarov; Olga Nasonova (18 May 2014). "Abundance of Field Galaxies". Monthly Notices of the Royal Astronomical Society. 454 (2): 1798–1810. arXiv:1405.4523. Bibcode:2015MNRAS.454.1798K. doi:10.1093/mnras/stv2040.
References
[edit]- ^ Astronomische Nachrichten, "On the Emptiness of Voids", K.-H. Schmidt; Petra Böhm; Hans Elsässer; vol. 318, no. 2, p. 81, Bibcode:1997AN....318...81S
- ^ "An Introduction to Galaxies and Cosmology", David J. Adams and others
- ^ a b Pieter G. van Dokkum (27 June 2005). "The Recent and Continuing Assembly of Field Ellipticals by Red Mergers". The Astronomical Journal. 130 (6) (published December 2005): 2647–2665. arXiv:astro-ph/0506661. Bibcode:2005AJ....130.2647V. doi:10.1086/497593. S2CID 250814170.
- ^ a b c d e f g h i j k l Jürgen Materne (April 1979). "The structure of nearby groups of galaxies – Quantitative membership probabilities". Astronomy & Astrophysics. 74 (2): 235–243. Bibcode:1979A&A....74..235M.
- ^ "Lonely galaxy lost in space". Space Daily. 11 June 2015.
- ^ "NGC 6503". NASA/IPAC Extragalactic Database.
- ^ "NGC 6503". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 26 February 2018.
- ^ Piero Madau; Lucia Pozzetti; Mark Dickinson (1998). "The Star Formation History of Field Galaxies". The Astrophysical Journal. 498 (1) (published May 1998): 106–116. arXiv:astro-ph/9708220. Bibcode:1998ApJ...498..106M. doi:10.1086/305523. S2CID 499769.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction