NGC 7075 is an elliptical galaxy located about 290 million light-years away[2] in the constellation of Grus.[3][4] NGC 7075 was discovered by astronomer John Herschel on September 4, 1834.[3] It is classfied a radio galaxy.[5]
| NGC 7075 | |
|---|---|
 Elliptical galaxy NGC 7075. | |
| Observation data (J2000 epoch) | |
| Constellation | Grus |
| Right ascension | 21h 31m 33.0s[1] |
| Declination | −38° 37′ 05″[1] |
| Redshift | 0.018479[1] |
| Heliocentric radial velocity | 5,540 km/s[1] |
| Distance | 290 Mly (89 Mpc)[1] |
| Group or cluster | IC 5105 Group (LGG 445) |
| Apparent magnitude (V) | 14.13[1] |
| Characteristics | |
| Type | E[1] |
| Apparent size (V) | 1.2 x 0.9[1] |
| Other designations | |
| 2MASX J21313299-3837046, MCG -07-44-020, PGC 66895, PKS 2128-388, ESO 343-G 004 [1] | |
NGC 7075 contains a Fanaroff-Riley class I radio source called PKS 2128-388. It has an unresolved core component. Its eastern radio jet, is found to have faint emission which extends out by ≈1.9 kpc from its nucleus.[6] A CO disc is found in NGC 7075 but unresolved. According to Atacama Large Millimeter Array observations, a hole is present in the gas distribution, indicating gas disc disturbance.[7]
IC 5105 Group
editAccording to A. M. Garcia, NGC 7075 is part of the IC 5105 group (also known as LGG 445). This group of galaxies contains at least 19 members. The other galaxies in the group are: NGC 7057, NGC 7060, NGC 7072, NGC 7087, NGC 7110, NGC 7130, IC 5105, IC 5105A, IC 5128, IC 5139, and eight galaxies in the ESO catalogue.[8]
See also
editReferences
edit- ^ a b c d e f g h i "Results for NGC 7075". NASA/IPAC Extragalactic Database. Retrieved 2017-07-18.
- ^ "NED Query Results for NGC 7075". ned.ipac.caltech.edu. Retrieved 2018-02-24.
- ^ a b "New General Catalog Objects: NGC 7050 - 7099". cseligman.com. Retrieved 2017-07-01.
- ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-07-18.
- ^ Govoni, F.; Falomo, R.; Fasano, G.; Scarpa, R. (2000). "The optical properties of low redshift radio galaxies". Astronomy and Astrophysics. 353: 507. arXiv:astro-ph/9910469. Bibcode:2000A&A...353..507G. Retrieved 2024-09-11.
- ^ Ruffa, Ilaria; Prandoni, Isabella; Laing, Robert A; Paladino, Rosita; Parma, Paola; de Ruiter, Hans; Mignano, Arturo; Davis, Timothy A; Bureau, Martin; Warren, Joshua (2019-01-23). "The AGN fuelling/feedback cycle in nearby radio galaxies I. ALMA observations and early results". Monthly Notices of the Royal Astronomical Society. 484 (3): 4239–4259. arXiv:1901.07513. doi:10.1093/mnras/stz255. ISSN 0035-8711.
- ^ Shabala, S. (2010-10-28), "The duty cycle of radio galaxies and AGN feedback", AGN Feedback in Galaxy Formation, Cambridge University Press, pp. 82–97, Bibcode:2010agnf.book...82S, doi:10.1017/cbo9780511761386.012, ISBN 978-0-521-19254-5, retrieved 2024-09-11
- ^ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47. Bibcode:1993A&AS..100...47G.
External links
edit- NGC 7075 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images