NGC 1396 explained

NGC 1396
Epoch:J2000
Type:d:E6,N
Dist Ly:19.025Mpc[1]
H Radial V:808 km/s
Z:0.002695
Appmag V:14.82
Size V:1.0 x 0.9
Constellation Name:Fornax (constellation)
Names:ESO 358- ? 041, FCC 202, PGC 013398
Size:~7.33kpc (estimated)
Mass:5.6 (Stellar mass)/1 (Total Mass)[2]
Group Cluster:Fornax Cluster
Absmag V:−16.3

NGC 1396 is a dwarf elliptical galaxy[3] located 61 millon light years away[4] in the constellation of Fornax. The galaxy was discovered by astronomer Julius Schmidt on January 19, 1865,[5] and is a member of the Fornax Cluster.[6] Despite the fact that the galaxy PGC 13398 is most commonly identified as NGC 1396, there is uncertainty in its identification.[7] [8] [9]

NGC 1396 is a satellite galaxy of NGC 1399.[10]

232 known globular clusters have been observed surrounding NGC 1396,[11] along with a central nuclear star cluster with an estimated mass of 9.6 × 106 M☉.[12]

NGC 1396 has a metallicity of [Fe/H]∼ -0.4, with unusually overabundant values of [Ca/Fe] ∼+ 0.1, and underabundant sodium, with [Na/Fe] values around -0.1, while [Mg/Fe] is overabundant throughout the galaxy, increasing at a greater distance from the center of the galaxy. These abundance ratios compared with galaxies in the Local Group, show that the chemical enrichment history of the interstellar medium of NGC 1396 is similar to the galactic disc of the Milky Way. This implies that NGC 1396 originated as a progenitor galaxy the size of the Large Magellanic Cloud that lost its gas as it fell though the Fornax Cluster.

See also

Notes and References

  1. Web site: NASA/IPAC Extragalactic Database . Results for NGC 1396 . 2024-07-05.
  2. Eftekhari . F. Sara . Peletier . Reynier F. . Scott . Nicholas . Mieske . Steffen . Bland-Hawthorn . Joss . Bryant . Julia J. . Cantiello . Michele . Croom . Scott M. . Drinkwater . Michael J. . Falcón-Barroso . Jésus . Hilker . Michael . Iodice . Enrichetta . Napolitano . Nicola R. . Spavone . Marilena . Valentijn . Edwin A. . 2022-12-01 . The SAMI-Fornax Dwarfs Survey - II. The Stellar Mass Fundamental Plane and the dark matter fraction of dwarf galaxies . Monthly Notices of the Royal Astronomical Society . 517 . 4 . 4714–4735 . 10.1093/mnras/stac2606 . free . 2209.05525 . 2022MNRAS.517.4714E . 0035-8711.
  3. Mentz . J. J. . La Barbera . F. . Peletier . R. F. . Falcón-Barroso . J. . Lisker . T. . van de Ven . G. . Loubser . S. I. . Hilker . M. . Sánchez-Janssen . R. . Napolitano . N. . Cantiello . M. . Capaccioli . M. . Norris . M. . Paolillo . M. . Smith . R. . 2016-12-01 . Abundance ratios and IMF slopes in the dwarf elliptical galaxy NGC 1396 with MUSE . Monthly Notices of the Royal Astronomical Society . 463 . 3 . 2819–2838 . 10.1093/mnras/stw2129 . free . 1608.07042 . 2016MNRAS.463.2819M . 0035-8711.
  4. Web site: Your NED Search Results . 2024-07-06 . ned.ipac.caltech.edu.
  5. Web site: New General Catalog Objects: NGC 1350 - 1399 . 2024-07-03 . cseligman.com.
  6. Ferguson . Henry C. . 1989-08-01 . Population Studies in Groups and Clusters of Galaxies. II. A Catalog of Galaxies in the Central 3.5 Degrees of the Fornax Cluster . The Astronomical Journal . 98 . 367 . 10.1086/115152 . 1989AJ.....98..367F . 0004-6256.
  7. Web site: New General Catalog Objects: NGC 1350 - 1399 . 2024-07-06 . cseligman.com.
  8. Web site: Gottlieb . Steve . Astronomy-Mall . 2024-07-05 . Astronomy-Mall.
  9. Web site: Notes on the NGC objects, particularly those missing, misidentified, or otherwise unusual (ngcnotes.all).. Historically-aware NGC/IC Positions and Notes. 2024-07-05.
  10. Liu . Yiqing . Peng . Eric W. . Jordán . Andrés . Blakeslee . John P. . Côté . Patrick . Ferrarese . Laura . Puzia . Thomas H. . 2019-04-01 . The ACS Fornax Cluster Survey. III. Globular Cluster Specific Frequencies of Early-type Galaxies . The Astrophysical Journal . 875 . 2 . 156 . 10.3847/1538-4357/ab12d9 . free . 1904.06909 . 2019ApJ...875..156L . 0004-637X.
  11. Lee . Sang-Yoon . Chung . Chul . Yoon . Suk-Jin . 2019-01-01 . Nonlinear Color-Metallicity Relations of Globular Clusters. VIII. Reproducing Color Distributions of Individual Globular Cluster Systems in the Virgo and Fornax Galaxy Clusters . The Astrophysical Journal Supplement Series . 240 . 1 . 2 . 10.3847/1538-4365/aaecd4 . free . 1811.00018 . 2019ApJS..240....2L . 0067-0049.
  12. Johnston . Evelyn J. . Puzia . Thomas H. . D'Ago . Giuseppe . Eigenthaler . Paul . Galaz . Gaspar . Häußler . Boris . Mora . Marcelo D. . Ordenes-Briceño . Yasna . Rong . Yu . Spengler . Chelsea . Vogt . Frédéric . Côté . Patrick . Grebel . Eva K. . Hilker . Michael . Mieske . Steffen . 2020-06-01 . The Next Generation Fornax Survey (NGFS): VII. A MUSE view of the nuclear star clusters in Fornax dwarf galaxies . Monthly Notices of the Royal Astronomical Society . 495 . 2 . 2247–2264 . 10.1093/mnras/staa1261 . free . 2005.01532 . 2020MNRAS.495.2247J . 0035-8711.

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