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  3. NGC 1428 - Wikipedia
NGC 1428 - Wikipedia
Coordinates: Sky map 03h 42m 19.4s, −35° 23′ 34″
From Wikipedia, the free encyclopedia
NGC 1428
DSS image of NGC 1428
Observation data (J2000 epoch)
ConstellationFornax
Right ascension03h 42m 22.7s[1]
Declination−35° 09′ 14″[1]
Redshift0.005470[1]
Heliocentric radial velocity1640 km/s[1]
Distance65.61 Mly (20.117 Mpc)[1]
Group or clusterFornax Cluster
Apparent magnitude (V)13.90[1]
Absolute magnitude (V)-19.02[1]
Characteristics
TypeSAB0^- pec, E[1]
Mass5.3×1010 (Stellar mass)[2]/9.5×1010 (Total Mass)[3] M☉
Size~32,500 ly (9.97 kpc) (estimated)[1]
Apparent size (V)1.6 x 0.8[1]
Other designations
ESO 358- G 053, MCG -06-09-022, FCC 277, PGC 013611[1]

NGC 1428 is a peculiar galaxy[4] of an uncertain morphology; either an elliptical or lenticular galaxy[5] located approximately 65 million light-years away from Earth.[6]

It was discovered by astronomer Julius Schmidt on January 19, 1865.[7] It is a member of the Fornax Cluster.[8]

40 known globular clusters have been observed surrounding NGC 1428[9] along with 23 observed planetary nebulae.[10]

Physical characteristics

NGC 1428 is host to a nuclear star cluster with an estimated mass ranging from 1.4 × 107 [11] to 2.2 × 107 M☉.[12] It is thought that this nuclear star cluster which surrounded by a nuclear stellar disk formed from multiple instances of gas acrecction and subsequent episodes of star formation. The presence of counter-rotating population of stars suggests the occurrence of mergers that occurred in the opposite direction of the rotation of NGC 1428.[11]

The galaxy has a supermassive black hole with an estimated mass of 4.1 × 107 M☉.[13]

See also

References

  1. ^ a b c d e f g h i j k "NASA/IPAC Extragalactic Database". Results for NGC 1428. Retrieved 2024-07-12.
  2. ^ Fahrion, K.; Lyubenova, M.; van de Ven, G.; Hilker, M.; Leaman, R.; Falcón-Barroso, J.; Bittner, A.; Coccato, L.; Corsini, E. M.; Gadotti, D. A.; Iodice, E.; McDermid, R. M.; Martín-Navarro, I.; Pinna, F.; Poci, A. (2021-06-01). "Diversity of nuclear star cluster formation mechanisms revealed by their star formation histories". Astronomy and Astrophysics. 650: A137. arXiv:2104.06412. Bibcode:2021A&A...650A.137F. doi:10.1051/0004-6361/202140644. ISSN 0004-6361.
  3. ^ Spolaor, Max; Kobayashi, Chiaki; Forbes, Duncan A.; Couch, Warrick J.; Hau, George K. T. (2010-10-01). "Early-type galaxies at large galactocentric radii - II. Metallicity gradients and the [Z/H]-mass, [α/Fe]-mass relations". Monthly Notices of the Royal Astronomical Society. 408 (1): 272–292. arXiv:1006.1698. Bibcode:2010MNRAS.408..272S. doi:10.1111/j.1365-2966.2010.17080.x. ISSN 0035-8711.
  4. ^ "Detailed Object Classifications". ned.ipac.caltech.edu. Retrieved 2024-07-15.
  5. ^ Merluzzi, P.; Busarello, G.; Terranegra, L.; Colless, M. M.; Graham, A. W. (1998-01-01). "NGC 1428: from the discordant redshift caused by a star, to the determination of the morphological type". Memorie della Societa Astronomica Italiana. 69: 283–286. Bibcode:1998MmSAI..69..283M. ISSN 0037-8720.
  6. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-07-15.
  7. ^ "New General Catalog Objects: NGC 1400 - 1449". cseligman.com. Retrieved 2024-07-24.
  8. ^ Ferguson, Henry C. (August 1989). "Population studies in groups and clusters of galaxies. II - A catalog of galaxies in the central 3.5 deg of the Fornax Cluster". The Astronomical Journal. 98: 367. Bibcode:1989AJ.....98..367F. doi:10.1086/115152.
  9. ^ Caso, Juan P.; De Bórtoli, Bruno J.; Ennis, Ana I.; Bassino, Lilia P. (2019-10-01). "Scaling relations for globular cluster systems in early-type galaxies". Monthly Notices of the Royal Astronomical Society. 488 (4): 4504–4519. arXiv:1908.01807. Bibcode:2019MNRAS.488.4504C. doi:10.1093/mnras/stz2039. ISSN 0035-8711.
  10. ^ Spriggs, T. W.; Sarzi, M.; Galán-de Anta, P. M.; Napiwotzki, R.; Viaene, S.; Nedelchev, B.; Coccato, L.; Corsini, E. M.; Fahrion, K.; Falcón-Barroso, J.; Gadotti, D. A.; Iodice, E.; Lyubenova, M.; Martín-Navarro, I.; McDermid, R. M. (2021-09-01). "The Fornax3D project: Planetary nebulae catalogue and independent distance measurements to Fornax cluster galaxies". Astronomy and Astrophysics. 653: A167. arXiv:2107.09680. Bibcode:2021A&A...653A.167S. doi:10.1051/0004-6361/202141314. ISSN 0004-6361.
  11. ^ a b Lyubenova, Mariya; van den Bosch, Remco C. E.; Côté, Patrick; Kuntschner, Harald; van de Ven, Glenn; Ferrarese, Laura; Jordán, Andrés; Infante, Leopoldo; Peng, Eric W. (2013-06-01). "The complex nature of the nuclear star cluster in FCC 277". Monthly Notices of the Royal Astronomical Society. 431 (4): 3364–3372. arXiv:1303.1210. Bibcode:2013MNRAS.431.3364L. doi:10.1093/mnras/stt414. ISSN 0035-8711.
  12. ^ Fahrion, K.; Lyubenova, M.; van de Ven, G.; Hilker, M.; Leaman, R.; Falcón-Barroso, J.; Bittner, A.; Coccato, L.; Corsini, E. M.; Gadotti, D. A.; Iodice, E.; McDermid, R. M.; Martín-Navarro, I.; Pinna, F.; Poci, A. (2021-06-01). "Diversity of nuclear star cluster formation mechanisms revealed by their star formation histories". Astronomy and Astrophysics. 650: A137. arXiv:2104.06412. Bibcode:2021A&A...650A.137F. doi:10.1051/0004-6361/202140644. ISSN 0004-6361.
  13. ^ 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. arXiv:2101.02716. Bibcode:2021ApJ...914..121A. doi:10.3847/1538-4357/abfcd3. ISSN 0004-637X.
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