NGC 1396

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NGC 1396
NGC 1396 DSS.jpg
DSS image of NGC 1396. NGC 1399 can be seen to the left of NGC 1396
Observation data (J2000 epoch)
Constellation Fornax (constellation)
Right ascension 03h 38m 06.5s [1]
Declination −35° 26′ 24″ [1]
Redshift 0.002695 [1]
Heliocentric radial velocity 808 km/s [1]
Distance 62.05  Mly (19.025  Mpc) [1]
Group or cluster Fornax Cluster
Apparent magnitude  (V)14.82 [1]
Absolute magnitude  (V)−16.3 [2]
Characteristics
Type d:E6,N [2]
Mass 5.6×108 (Stellar mass)/1×109 (Total Mass) [3]   M☉
Size~23,900  ly (7.33  kpc) (estimated) [1]
Apparent size  (V)1.0 x 0.9 [1]
Other designations
ESO 358- ? 041, FCC 202, PGC 013398 [1]

NGC 1396 is a dwarf elliptical galaxy [4] located 61 millon light years away [5] in the constellation of Fornax. The galaxy was discovered by astronomer Julius Schmidt on January 19, 1865, [6] and is a member of the Fornax Cluster. [7] Despite the fact that the galaxy PGC 13398 is most commonly identified as NGC 1396, there is uncertainty in its identification. [8] [9] [10]

Contents

NGC 1396 is a satellite galaxy of NGC 1399. [11]

232 known globular clusters have been observed surrounding NGC 1396, [2] 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. [4]

See also

Related Research Articles

<span class="mw-page-title-main">Dwarf galaxy</span> Small galaxy composed of up to several billion stars

A dwarf galaxy is a small galaxy composed of about 1000 up to several billion stars, as compared to the Milky Way's 200–400 billion stars. The Large Magellanic Cloud, which closely orbits the Milky Way and contains over 30 billion stars, is sometimes classified as a dwarf galaxy; others consider it a full-fledged galaxy. Dwarf galaxies' formation and activity are thought to be heavily influenced by interactions with larger galaxies. Astronomers identify numerous types of dwarf galaxies, based on their shape and composition.

<span class="mw-page-title-main">NGC 4309</span> Galaxy in the constellation Virgo

NGC 4309 is a lenticular galaxy located about 55 million light-years away in the constellation Virgo. The galaxy was discovered by astronomer Christian Peters in 1881 and is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 1427A</span> Galaxy in the constellation Fornax

NGC 1427A is an irregular galaxy in the constellation Fornax. Its distance modulus has been estimated using the globular cluster luminosity function to be 31.01 ± 0.21 which is about 52 Mly. It is the brightest dwarf irregular member of the Fornax cluster and is in the foreground of the cluster's central galaxy NGC 1399.

<span class="mw-page-title-main">NGC 1399</span> Elliptical galaxy in the Fornax Cluster

NGC 1399 is a large elliptical galaxy in the Southern constellation Fornax, the central galaxy in the Fornax Cluster. The galaxy is 66 million light-years away from Earth. With a diameter of 130 000 light-years, it is one of the largest galaxies in the Fornax Cluster and slightly larger than the Milky Way. William Herschel discovered this galaxy on October 22, 1835.

<span class="mw-page-title-main">NGC 1404</span> Elliptical galaxy in the Fornax Cluster

NGC 1404 is an elliptical galaxy in the Southern constellation Eridanus. It was discovered on November 28, 1837, by the astronomer John Herschel. Based on the tip of the red-giant branch distance indicator, it lies at a distance of approximately 60 million light-years from the Milky Way. It is one of the brightest members of the Fornax Cluster.

<span class="mw-page-title-main">Laevens 1</span>

Laevens 1 is a faint globular cluster in the constellation Crater that was discovered in 2014. It is also known as Crater, the Crater cluster and PSO J174.0675-10.8774.

<span class="mw-page-title-main">NGC 4570</span> Galaxy in the constellation Virgo

NGC 4570 is an edge-on lenticular galaxy located about 57 million light-years away in the constellation Virgo. NGC 4570 was discovered by astronomer William Herschel on April 13, 1784 and is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4709</span> Galaxy in the constellation Centaurus

NGC 4709 is an elliptical galaxy located in the constellation Centaurus. It is considered to be a member of the Centaurus Cluster and is the dominant member of a small group of galaxies known as "Cen 45" which is currently merging with the main Centaurus Cluster even though the two subclusters' line of sight redshift velocities differ by about 1500 km/s. NGC 4709 was discovered by astronomer James Dunlop on May 7, 1826.

<span class="mw-page-title-main">NGC 3311</span> Galaxy in the constellation Hydra

NGC 3311 is a super-giant elliptical galaxy located about 190 million light-years away in the constellation Hydra. The galaxy was discovered by astronomer John Herschel on March 30, 1835. NGC 3311 is the brightest member of the Hydra Cluster and forms a pair with NGC 3309 which along with NGC 3311, dominate the central region of the Hydra Cluster.

<span class="mw-page-title-main">NGC 708</span> Galaxy in the constellation Andromeda

NGC 708 is an elliptical galaxy located 240 million light-years away in the constellation Andromeda and was discovered by astronomer William Herschel on September 21, 1786. It is classified as a cD galaxy and is the brightest member of Abell 262. NGC 708 is a weak FR I radio galaxy and is also classified as a type 2 Seyfert galaxy.

<span class="mw-page-title-main">NGC 1380</span> Galaxy in the constellation Fornax

NGC 1380 is a lenticular galaxy located in the constellation Fornax. It is located at a distance of circa 60 million light years from Earth, which, given its apparent dimensions, means that NGC 1380 is about 85,000 light years across. It was discovered by James Dunlop on September 2, 1826. It is a member of the Fornax Cluster.

<span class="mw-page-title-main">NGC 1381</span> Galaxy in the constellation Fornax

NGC 1381 is a lenticular galaxy located in the constellation Fornax. It is located at a distance of about 60 million light years from Earth, which, given its apparent dimensions, means that NGC 1381 is about 55,000 light years across. It is a member of the Fornax Cluster. NGC 1381 appears edge-on and features a thin disk with high surface brightness and a boxy bulge. Both the box-shaped bulge and the kinematics of the central area of the galaxy suggest that NGC 1381 has a bar.

<span class="mw-page-title-main">NGC 4074</span> Galaxy in the constellation Coma Berenices

NGC 4074 is a peculiar lenticular galaxy located 310 million light-years away in the constellation Coma Berenices. It was discovered by astronomer William Herschel on April 27, 1785 and is a member of the NGC 4065 Group.

<span class="mw-page-title-main">NGC 1310</span> Galaxy in the constellation Fornax

NGC 1310 is a barred spiral galaxy located in the southern constellation of Fornax. It was discovered by English astronomer John Herschel on 22 October 1835.

<span class="mw-page-title-main">NGC 1375</span> Galaxy in the constellation Fornax

NGC 1375 is a barred lenticular galaxy in the constellation Fornax discovered by John Herschel on November 29, 1837. It is believed to be a member of the Fornax Cluster.

<span class="mw-page-title-main">NGC 4306</span> Dwarf barred lenticular galaxy in the constellation Virgo

NGC 4306 is a dwarf barred lenticular galaxy located about 100 million light-years away in the constellation Virgo. The galaxy was discovered by astronomer Heinrich d'Arrest on April 16, 1865. Although considered to be a member of the Virgo Cluster, its high radial velocity and similar distance as NGC 4305 suggest that NGC 4306 is a background galaxy. NGC 4306 is a companion of NGC 4305 and appears to be interacting with it.

<span class="mw-page-title-main">NGC 4318</span> Galaxy in the constellation Virgo

NGC 4318 is a small lenticular galaxy located about 72 million light-years away in the constellation Virgo. It was discovered by astronomer John Herschel on January 18, 1828. NGC 4318 is a member of the Virgo W′ group, a group of galaxies in the background of the Virgo Cluster that is centered on the giant elliptical galaxy NGC 4365.

<span class="mw-page-title-main">NGC 1369</span> Galaxy of the Fornax Cluster

NGC 1369 is a barred lenticular galaxy located 59 millon light years away in constellation of Eridanus. The galaxy was discovered by astronomer Julius Schmidt on January 19, 1865, and is a member of the Fornax Cluster. NGC 1369 is a host to a supermassive black hole with an estimated mass of 1.8 millon solar masses.

<span class="mw-page-title-main">NGC 4393</span> Galaxy in the constellation of Coma Berenices

NGC 4393 is a spiral galaxy about 46 million light-years away in the constellation Coma Berenices. It was discovered by astronomer William Herschel on April 11, 1785. It is a member of the NGC 4274 Group, which is part of the Coma I Group or Cloud.

<span class="mw-page-title-main">NGC 1373</span>

NGC 1373 is a dwarf elliptical galaxy located 61 millon light years away in constellation of Fornax. The galaxy was discovered by astronomer John Herschel on November 29, 1837, and is a member of the Fornax Cluster. NGC 1373 is a host to a supermassive black hole with an estimated mass of 4.6 millon solar masses.

References

  1. 1 2 3 4 5 6 7 8 9 "NASA/IPAC Extragalactic Database". Results for NGC 1396. Retrieved 2024-07-05.
  2. 1 2 3 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. arXiv: 1811.00018 . Bibcode:2019ApJS..240....2L. doi: 10.3847/1538-4365/aaecd4 . ISSN   0067-0049.
  3. ↑ 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. arXiv: 2209.05525 . Bibcode:2022MNRAS.517.4714E. doi:10.1093/mnras/stac2606. ISSN   0035-8711.
  4. 1 2 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. arXiv: 1608.07042 . Bibcode:2016MNRAS.463.2819M. doi:10.1093/mnras/stw2129. ISSN   0035-8711.
  5. ↑ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-07-06.
  6. ↑ "New General Catalog Objects: NGC 1350 - 1399". cseligman.com. Retrieved 2024-07-03.
  7. ↑ 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. Bibcode:1989AJ.....98..367F. doi:10.1086/115152. ISSN   0004-6256.
  8. ↑ "New General Catalog Objects: NGC 1350 - 1399". cseligman.com. Retrieved 2024-07-06.
  9. ↑ Gottlieb, Steve. "Astronomy-Mall". Astronomy-Mall. Retrieved 2024-07-05.
  10. ↑ "Notes on the NGC objects, particularly those missing, misidentified, or otherwise unusual (ngcnotes.all)". Historically-aware NGC/IC Positions and Notes. Retrieved 2024-07-05.
  11. ↑ 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. arXiv: 1904.06909 . Bibcode:2019ApJ...875..156L. doi: 10.3847/1538-4357/ab12d9 . ISSN   0004-637X.
  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. arXiv: 2005.01532 . Bibcode:2020MNRAS.495.2247J. doi:10.1093/mnras/staa1261. ISSN   0035-8711.
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