PKS 2014-55 explained

PKS 2014-55 is a Seyfert 2 elliptical galaxy presenting strong emission lines.^{[3] [4]} It is located in the poor galaxy group, 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.

Notes and References

1. PKS 2014-55. 2024-11-25.
2. Web site: By Name | NASA/IPAC Extragalactic Database . Ned.ipac.caltech.edu . 2020-05-15.
3. 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 . 10.1093/mnras/staa1240 . free . 0035-8711. 2005.02723 .
4. 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 . 10.1093/mnras/281.2.509 . free . 1996MNRAS.281..509S . 0035-8711.
5. Web site: An X more like two boomerangs. Cosmos Magazine. May 15, 2020.
6. Web site: Staff . News . 2020-05-08 . Astronomers Crack Mystery of X-Shaped Radio Galaxies Sci.News . 2024-08-26 . Sci.News: Breaking Science News . en-US.