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NGC 1369

NGC 1369
legacy surveys image of NGC 1369.
Observation data (J2000 epoch)
ConstellationEridanus (constellation)
Right ascension03h 36m 45.2s[1]
Declination−36° 15′ 22″[1]
Redshift0.004717[1]
Heliocentric radial velocity1414 km/s[1]
Distance59 Mly (18.1 Mpc)[1]
Group or clusterFornax Cluster
Apparent magnitude (V)13.74[1]
Characteristics
TypeSB0/a(rs)[1]
Mass0.68×1010 (Stellar mass) [2]/3.5×1010 (Total Mass)[3] M☉
Size~25,800 ly (7.91 kpc) (estimated)[1]
Apparent size (V)1.5 x 1.4[1]
Other designations
ESO 358- G 034, MCG -06-09-004, FCC 176, PGC 013330[1]

NGC 1369 is a barred lenticular galaxy located 59 million light years away[4] in constellation of Eridanus. The galaxy was discovered by astronomer Julius Schmidt on January 19, 1865,[5] and is a member of the Fornax Cluster.[6] NGC 1369 is a host to a supermassive black hole with an estimated mass of 1.8 million solar masses.[7]

Surrounding NGC 1369 is a population of a least 11 known globular clusters.[8]

Physical characteristics

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In the disk of NGC 1369, there are two bright, diffuse spiral arms which break of a relatively weak bar structure. These arms quickly fade in the diffuse outer disk.[9] Despite the presence of spiral arms, the galaxy is very red which actually makes NGC 1369 a lenticular galaxy.[10] Also, the galaxy is devoid of atomic and molecular gas,[11] and does not show any indications of ionised-gas emission as a result of star formation. Observations in X-rays have shown that it is infalling in a transional region of the Fornax Cluster between the high and low-density regions of the cluster where the X-ray emission is still present. As a result, ram-pressure stripping would have acted to stop star formation once the galaxy entered into the cluster core,[12] causing it to transion from a spiral galaxy to a lenticular galaxy.[11]

See also

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References

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  1. ^ a b c d e f g h i j "NASA/IPAC Extragalactic Database". Results for NGC 1369. Retrieved 2024-06-28.
  2. ^ Martín-Navarro, I.; Pinna, F.; Coccato, L.; Falcón-Barroso, J.; Ven, G. van de; Lyubenova, M.; Corsini, E. M.; Fahrion, K.; Gadotti, D. A.; Iodice, E.; McDermid, R. M.; Poci, A.; Sarzi, M.; Spriggs, T. W.; Viaene, S. (2021-10-01). "Fornax 3D project: Assessing the diversity of IMF and stellar population maps within the Fornax Cluster". Astronomy & Astrophysics. 654: A59. arXiv:2107.14243. Bibcode:2021A&A...654A..59M. doi:10.1051/0004-6361/202141348. ISSN 0004-6361.
  3. ^ Firth, P.; Drinkwater, M. J.; Evstigneeva, E. A.; Gregg, M. D.; Karick, A. M.; Jones, J. B.; Phillipps, S. (2007-11-01). "Compact stellar systems around NGC 1399". Monthly Notices of the Royal Astronomical Society. 382 (3): 1342–1352. arXiv:0709.2517. Bibcode:2007MNRAS.382.1342F. doi:10.1111/j.1365-2966.2007.12474.x. ISSN 0035-8711.
  4. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-06-28.
  5. ^ "New General Catalog Objects: NGC 1350 - 1399". cseligman.com. Retrieved 2024-06-28.
  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. Bibcode:1989AJ.....98..367F. doi:10.1086/115152. ISSN 0004-6256.
  7. ^ 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.
  8. ^ Fahrion, K.; Lyubenova, M.; Hilker, M.; Ven, G. van de; Falcón-Barroso, J.; Leaman, R.; Martín-Navarro, I.; Bittner, A.; Coccato, L.; Corsini, E. M.; Gadotti, D. A.; Iodice, E.; McDermid, R. M.; Pinna, F.; Sarzi, M. (2020-05-01). "The Fornax 3D project: Globular clusters tracing kinematics and metallicities". Astronomy & Astrophysics. 637: A26. arXiv:2003.13705. Bibcode:2020A&A...637A..26F. doi:10.1051/0004-6361/202037685. ISSN 0004-6361.
  9. ^ "NGC 1369 - SAB(s)a". kudzu.astr.ua.edu. Retrieved 2024-06-28.
  10. ^ Fuller, C.; Davies, J. I.; Auld, R.; Smith, M. W. L.; Baes, M.; Bianchi, S.; Bocchio, M.; Boselli, A.; Clemens, M.; Davis, T. A.; De Looze, I.; di Serego Alighieri, S.; Grossi, M.; Hughes, T. M.; Viaene, S. (2014-05-01). "The Herschel Fornax Cluster Survey II: FIR properties of optically selected Fornax cluster galaxies". Monthly Notices of the Royal Astronomical Society. 440 (2): 1571–1589. arXiv:1403.0589. Bibcode:2014MNRAS.440.1571F. doi:10.1093/mnras/stu369. ISSN 0035-8711.
  11. ^ a b Raj, M. A.; Iodice, E.; Napolitano, N. R.; Spavone, M.; Su, H. -S.; Peletier, R. F.; Davis, T. A.; Zabel, N.; Hilker, M.; Mieske, S.; Falcon Barroso, J.; Cantiello, M.; van de Ven, G.; Watkins, A. E.; Salo, H. (2019-08-01). "The Fornax Deep Survey with the VST. VII. Evolution and structure of late type galaxies inside the virial radius of the Fornax cluster". Astronomy and Astrophysics. 628: A4. arXiv:1906.08704. Bibcode:2019A&A...628A...4R. doi:10.1051/0004-6361/201935433. ISSN 0004-6361.
  12. ^ Iodice, E.; Sarzi, M.; Bittner, A.; Coccato, L.; Costantin, L.; Corsini, E. M.; van de Ven, G.; de Zeeuw, P. T.; Falcón-Barroso, J.; Gadotti, D. A.; Lyubenova, M.; Martín-Navarro, I.; McDermid, R. M.; Nedelchev, B.; Pinna, F. (2019-07-01). "The Fornax3D project: Tracing the assembly history of the cluster from the kinematic and line-strength maps". Astronomy and Astrophysics. 627: A136. arXiv:1906.08187. Bibcode:2019A&A...627A.136I. doi:10.1051/0004-6361/201935721. ISSN 0004-6361.