PKS 2014-55
| PKS 2014-55 | |
|---|---|
| Observation data (J2000 epoch) | |
| Constellation | Telescopium |
| Right ascension | 20h 18m 01s |
| Declination | −55° 39′ 30.8″ |
| Redshift | 0.06063 +/- 0.00015 |
| Distance | 800 mly |
| Characteristics | |
| Type | E/S0[1] |
| Other designations | |
| WISEA J201801.29-553931.5; 2MASX J20180125-5539312; PGC 64440, 2MASS J20180128-5539315; GALEXASC J201801.26-553933.5 | |
References: [2] | |
PKS 2014-55 is a Seyfert 2 elliptical galaxy presenting strong emission lines.[3][4] It is located in the poor galaxy group,[3] and is an X-shaped radio galaxy discovered by the MeerKAT radio telescope in South Africa that is located 800 million light-years away from Earth.[5][6] The galaxy looks like two boomerangs, with jets extending 2.5 million light years across. Then the jets are “reversed” by the pressure of intergalactic gas, later deflected by gas pressure to form an “X” shape.
References
[edit]- ^ "PKS 2014-55". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2024-11-25.
- ^ "By Name | NASA/IPAC Extragalactic Database". Ned.ipac.caltech.edu. Retrieved 2020-05-15.
- ^ a b Cotton, W D; Thorat, K; Condon, J J; Frank, B S; Józsa, G I G; White, S V; Deane, R; Oozeer, N; Atemkeng, M; Bester, L; Fanaroff, B; Kupa, R S; Smirnov, O M; Mauch, T; Krishnan, V (2020-05-07). "Hydrodynamical backflow in X-shaped radio galaxy PKS 2014−55". Monthly Notices of the Royal Astronomical Society. 495 (1): 1271–1283. arXiv:2005.02723. doi:10.1093/mnras/staa1240. ISSN 0035-8711.
- ^ Simpson, C.; Ward, M.; Clements, D. L.; Rawlings, S. (1996-07-01). "Emission-line ratios in a radio-selected sample of active galactic nuclei". Monthly Notices of the Royal Astronomical Society. 281 (2): 509–521. Bibcode:1996MNRAS.281..509S. doi:10.1093/mnras/281.2.509. ISSN 0035-8711.
- ^ "An X more like two boomerangs". Cosmos Magazine. Retrieved May 15, 2020.
- ^ Staff, News (2020-05-08). "Astronomers Crack Mystery of X-Shaped Radio Galaxies | Sci.News". Sci.News: Breaking Science News. Retrieved 2024-08-26.
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