NGC 5419 explained

NGC 5419
Constellation Name:Centaurus
Epoch:J2000
Type:E[1]
Dist Ly:NaNMpc
Z:0.013763
H Radial V:4126 ± 15 km/s
Appmag V:10.8
Size V:4.1' x 3.3'
Size:~131.42kpc (estimated)
Names:, ESO384-G039

NGC5419 is a large elliptical galaxy in the constellation of Centaurus. Its velocity with respect to the cosmic microwave background is 4,375 ± 23km/s, which corresponds to a Hubble distance of 64.5 ± 4.5Mpc (∼210million light-years). It was discovered by British astronomer John Herschel on 1 May 1834.

NGC5419 is the brightest cluster galaxy of the galaxy cluster, AbellS0753.[2] It contains a large core with a radius span of 1.58 arcsec (≈55 pc). In addition, it has a double nucleus, indicating the presence of two supermassive black holes in the center with a separation gap of only ≈70 pc.[3] [4] [5]

Two supernovae have been observed in NGC5419: SN2018zz (typeIa, mag.16),[6] and SN2020alh (typeIa, mag.15.3).[7]

NGC 5488 Group

According to A.M. Garcia, the galaxy NGC5419 is part of the NGC5488 group (also known as LGG369). This group of galaxies has 14 members: NGC 5397, NGC 5488, IC 4366 and nine galaxies from the ESO catalog.[8]

See also

Notes and References

  1. Web site: NASA/IPAC Extragalactic Database . Results for NGC 5419 . 28 July 2024.
  2. Coziol . R. . Andernach . H. . Caretta . C. A. . Alamo-Martínez . K. A. . Tago . E. . 2009-06-01 . The Dynamical State of Brightest Cluster Galaxies and The Formation of Clusters . The Astronomical Journal . 137 . 6 . 4795–4809 . 10.1088/0004-6256/137/6/4795 . 0903.2360 . 2009AJ....137.4795C . 0004-6256.
  3. Mazzalay . Ximena . Thomas . Jens . Saglia . Roberto P. . Wegner . Gary A. . Bender . Ralf . Erwin . Peter . Fabricius . Maximilian H. . Rusli . Stephanie P. . 2016-11-01 . The supermassive black hole and double nucleus of the core elliptical NGC 5419 . Monthly Notices of the Royal Astronomical Society . 462 . 3 . 2847–2860 . 10.1093/mnras/stw1802 . free . 1607.06466 . 2016MNRAS.462.2847M . 0035-8711.
  4. Neureiter . Bianca . Thomas . Jens . Rantala . Antti . Naab . Thorsten . Mehrgan . Kianusch . Saglia . Roberto . de Nicola . Stefano . Bender . Ralf . 2023-06-01 . The isotropic center of NGC 5419 -- A core in formation? . The Astrophysical Journal . 950 . 1 . 15 . 10.3847/1538-4357/accffa . free . 2305.03078 . 2023ApJ...950...15N . 0004-637X.
  5. Arzoumanian . Zaven . Baker . Paul T. . Brazier . Adam . Brook . Paul R. . Burke-Spolaor . Sarah . Becsy . Bence . Charisi . Maria . Chatterjee . Shami . Cordes . James M. . Cornish . Neil J. . Crawford . Fronefield . Cromartie . H. Thankful . Decesar . Megan E. . Demorest . Paul B. . Dolch . Timothy . 2021-06-01 . The NANOGrav 11 yr Data Set: Limits on Supermassive Black Hole Binaries in Galaxies within 500 Mpc . The Astrophysical Journal . 914 . 2 . 121 . 10.3847/1538-4357/abfcd3 . free . 2101.02716 . 2021ApJ...914..121A . 0004-637X.
  6. https://www.wis-tns.org/object/2018zz Transient Name Server entry for SN2018zz.
  7. https://www.wis-tns.org/object/2020alh Transient Name Server entry for SN2020alh.
  8. 1993A&AS..100...47G . General study of group membership. II. Determination of nearby groups . Garcia . A. M. . Astronomy and Astrophysics Supplement Series . 1993 . 100 . 47 .

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