PGC 2456

PGC 2456
Hubble Space Telescope of PGC 2456 and its surrounding galaxies PGC 2800504 and 2MASX J00413329-0914569
Observation data (J2000 epoch)
ConstellationCetus
Right ascension00h 41m 30.29s
Declination-09d 15m 45.85s
Redshift0.044674
Distance617 Mly (189.17 Mpc)
Group or clusterAbell 85
Apparent magnitude (V)0.10
Apparent magnitude (B)0.13
Characteristics
TypecD, Sy
Other designations
PGC 2456, PGC 93189, NVSS J004130-091545, KAZ 364, WINGS J004130.29-091546.0, NSA 127503, 2CXO J001430.3-091546, JO201

PGC 2456 known as KAZ 364 and JO201, is a spiral galaxy located in the constellation of Cetus. It is located 617 million light-years away from the Solar System.[1] A member of Abell 85, PGC 2456 lies 360 kiloparsecs from the brightest cluster galaxy, Holmberg 15A.[2]

PGC 2456 contains an active galactic nucleus.[3] It is a low-excitation radio galaxy,[4] with a stellar mass of 3.6 x 1010 M⊙.[5]

PGC 2456 is considered a jellyfish galaxy due to the fact the tendrils are seen drifting downwards from its core.[6][7] It exhibits intensive star formation in its tendrils and is the Ultraviolet-brightest cluster galaxy in Abell 85.[8][9]

Such jellyfish galaxies are formed when galaxies like PGC 2456, moves through high speeds across the galaxy clusters, causing ram pressure to strip gas. According to studies, researchers estimated PGC 2456 might have lost about 50% of its mass when undergoing ram-pressure stripping.[10]

  1. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-20.
  2. ^ Ramatsoku, M.; Serra, P.; Poggianti, B. M.; Moretti, A.; Gullieuszik, M.; Bettoni, D.; Deb, T.; Franchetto, A.; Gorkom, J. H. van; Jaffé, Y.; Tonnesen, S.; Verheijen, M. a. W.; Vulcani, B.; Andati, L. a. L.; Blok, E. de (2020-08-01). "GASP - XXVI. HI gas in jellyfish galaxies: The case of JO201 and JO206". Astronomy & Astrophysics. 640: A22. arXiv:2006.11543. Bibcode:2020A&A...640A..22R. doi:10.1051/0004-6361/202037759. ISSN 0004-6361.
  3. ^ Radovich, Mario; Poggianti, Bianca; Jaffé, Yara L; Moretti, Alessia; Bettoni, Daniela; Gullieuszik, Marco; Vulcani, Benedetta; Fritz, Jacopo (2019-03-19). "GASP – XIX. AGN and their outflows at the centre of jellyfish galaxies". Monthly Notices of the Royal Astronomical Society. 486 (1): 486–503. arXiv:1905.08972. doi:10.1093/mnras/stz809. ISSN 0035-8711.
  4. ^ Lin, Yen-Ting; Huang, Hung-Jin; Chen, Yen-Chi (2018-05-01). "An Analysis Framework for Understanding the Origin of Nuclear Activity in Low-power Radio Galaxies". The Astronomical Journal. 155 (5): 188. arXiv:1803.02482. Bibcode:2018AJ....155..188L. doi:10.3847/1538-3881/aab5b4. ISSN 0004-6256.
  5. ^ Vulcani, Benedetta; Poggianti, Bianca M.; Gullieuszik, Marco; Moretti, Alessia; Tonnesen, Stephanie; Jaffé, Yara L.; Fritz, Jacopo; Fasano, Giovanni; Bettoni, Daniela (2018-10-17). "Enhanced Star Formation in Both Disks and Ram-pressure-stripped Tails of GASP Jellyfish Galaxies". The Astrophysical Journal Letters. 866 (2): L25. arXiv:1810.05164. Bibcode:2018ApJ...866L..25V. doi:10.3847/2041-8213/aae68b. ISSN 2041-8205.
  6. ^ [email protected]. "Galactic Seascape". www.spacetelescope.org. Retrieved 2024-04-20.
  7. ^ Anderson, Natali (2023-02-27). "Hubble Finds Star-Forming Clumps in Six Jellyfish Galaxies | Sci.News". Sci.News: Breaking Science News. Retrieved 2024-07-26.
  8. ^ George, K.; Poggianti, B. M.; Gullieuszik, M.; Fasano, G.; Bellhouse, C.; Postma, J.; Moretti, A.; Jaffé, Y.; Vulcani, B.; Bettoni, D.; Fritz, J.; Côté, P.; Ghosh, S. K.; Hutchings, J. B.; Mohan, R. (2018-09-01). "UVIT view of ram-pressure stripping in action: star formation in the stripped gas of the GASP jellyfish galaxy JO201 in Abell 85". Monthly Notices of the Royal Astronomical Society. 479 (3): 4126–4135. arXiv:1803.06193. Bibcode:2018MNRAS.479.4126G. doi:10.1093/mnras/sty1452. ISSN 0035-8711.
  9. ^ George, Koshy; Poggianti, B. M.; Gullieuszik, M.; Fasano, G.; Bellhouse, C.; Postma, J.; Moretti, A.; Jaffé, Y.; Vulcani, B.; Bettoni, D.; Fritz, J.; Côté, P.; Ghosh, S. K.; Hutchings, J. B.; Mohan, R. (2018-09-21). "Ultra-Violet Imaging Telescope view of ram-pressure stripping in action: Star formation in the stripped gas of the GASP jellyfish galaxy JO201 in Abell 85". Monthly Notices of the Royal Astronomical Society. 479 (3): 4126–4135. arXiv:1803.06193. Bibcode:2018MNRAS.479.4126G. doi:10.1093/mnras/sty1452. ISSN 0035-8711.
  10. ^ Bellhouse, C.; Jaffé, Y. L.; Hau, G. K. T.; McGee, S. L.; Poggianti, B. M.; Moretti, A.; Gullieuszik, M.; Bettoni, D.; Fasano, G.; D'Onofrio, M.; Fritz, J.; Omizzolo, A.; Sheen, Y. -K.; Vulcani, B. (2017-07-01). "GASP. II. A MUSE View of Extreme Ram-Pressure Stripping along the Line of Sight: Kinematics of the Jellyfish Galaxy JO201". The Astrophysical Journal. 844 (1): 49. arXiv:1704.05087. Bibcode:2017ApJ...844...49B. doi:10.3847/1538-4357/aa7875. ISSN 0004-637X.