NGC 759

NGC 759
2MASS image of NGC 759.
Observation data (J2000 epoch)
ConstellationAndromeda
Right ascension01h 57m 50.3s
Declination36° 20′ 35″
Redshift0.015567
Heliocentric radial velocity4667 km/s
Distance230 Mly (70.4 Mpc)
Group or clusterAbell 262
Apparent magnitude (V)13.3
Characteristics
TypeE
Size~110,000 ly (33 kpc) (estimated)
Apparent size (V)1.6 × 1.4
Other designations
MCG 6-5-67, PGC 7397, UGC 1440

NGC 759 is an elliptical galaxy located 230 million light-years away in the constellation Andromeda. NGC 759 was discovered by astronomer by Heinrich d'Arrest on September 17, 1865. It is a member of Abell 262.

Despite being classified as a radio galaxy, the radio emission in NGC 759 could be due to star formation rather than an active galactic nucleus.

Dust disk

The central region of NGC 759 harbors a face-on dust disk with tightly wound spiral structure. The disk has a diameter of 11,000 ly (3.4 kpc). The dust disk also contains a smaller circumnuclear molecular gas ring that has star formation in H II regions. These features may be the result of a merger of gas-rich disk galaxies or by the accretion of gas-rich material. In either scenario, the gas would have lost momentum and fallen to the center of the galaxy to produce the disk and current star formation. However, Vlasyuk et al. suggests that the disk and the smaller circumnuclear molecular gas ring with star formation inside the main disk formed from a tidal encounter between NGC 759 and a large spiral galaxy which was accompanied by a substantial gas accretion.

The dust disk in NGC 759 as imaged by the Hubble Space Telescope

Molecular gas

NGC 759 contains 2.4 billion M☉ of molecular gas. Most of the gas is concentrated in a circumnuclear molecular gas ring with a diameter of 4,200 ly (1.3 kpc). The gas may be the result of the same merger event that produced the circumnuclear molecular gas ring and the main disk.

Supernova

One supernova has been observed in NGC 759.

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 "NASA/IPAC Extragalactic Database". Results for NGC 759. Retrieved 2019-01-06.
  2. ↑ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2019-01-08.
  3. ↑ "New General Catalog Objects: NGC 750 – 799". cseligman.com. Retrieved 2019-01-03.
  4. ↑ Giuricin, G.; Marinoni, C.; Ceriani, L.; Pisani, A. (November 2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". The Astrophysical Journal. 543 (1): 178–194. arXiv:astro-ph/0001140. Bibcode:2000ApJ...543..178G. doi:10.1086/317070. ISSN 0004-637X. S2CID 9618325.
  5. ↑ Garcia, A. M. (1993-07-01). "General study of group membership. II – Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47–90. Bibcode:1993A&AS..100...47G. ISSN 0365-0138.
  6. ↑ Fouque, P.; Gourgoulhon, E.; Chamaraux, P.; Paturel, G. (1992-05-01). "Groups of galaxies within 80 Mpc. II – The catalogue of groups and group members". Astronomy and Astrophysics Supplement Series. 93: 211–233. Bibcode:1992A&AS...93..211F. ISSN 0365-0138.
  7. ↑ "NGC 759". simbad. Retrieved 2019-01-08.
  8. ↑ "Detailed Object Classifications". ned.ipac.caltech.edu. Retrieved 2019-01-08.
  9. ↑ Righetti, G.; Giovannini, G.; Feretti, L. (1988-04-01). "WSRT observations at 327 MHz of the cluster A262". Astronomy and Astrophysics Supplement Series. 73: 173–179. Bibcode:1988A&AS...73..173R. ISSN 0365-0138.
  10. ↑ Zhao, Jun-Hui; Burns, Jack O.; Owen, Frazer N. (1989-07-01). "A 20 CM VLA survey of Abell clusters of galaxies. I – Distance class of not greater than 3 clusters". The Astronomical Journal. 98: 64–107. Bibcode:1989AJ.....98...64Z. doi:10.1086/115128. ISSN 0004-6256.
  11. ↑ Miller, Neal A.; Owen, Frazer N. (2001-06-01). "The Radio Galaxy Populations of Nearby Northern Abell Clusters". The Astrophysical Journal Supplement Series. 134 (2): 355–383. arXiv:astro-ph/0101114. Bibcode:2001ApJS..134..355M. doi:10.1086/320857. ISSN 0067-0049. S2CID 119052072.
  12. 1 2 Feretti, L.; Giovannini, G. (1994-01-01). "Structures of small-size radio galaxies in clusters". Astronomy and Astrophysics. 281: 375–387. Bibcode:1994A&A...281..375F. ISSN 0004-6361.
  13. 1 2 Vila-Vilaró, B.; Cepa, J.; Butner, H. M. (2003-09-01). "CO (3–2) Observations of Early-Type Galaxies with the Heinrich Hertz Telescope". The Astrophysical Journal. 594 (1): 232–246. Bibcode:2003ApJ...594..232V. doi:10.1086/376775. ISSN 0004-637X.
  14. ↑ Wegner, G. A.; Corsini, E. M.; Thomas, J.; Saglia, R. P.; Bender, R.; Pu, S. B. (2012). "Further Evidence for Large Central Mass-to-light Ratios in Early-type Galaxies: The Case of Ellipticals and Lenticulars in the A262 Cluster". The Astronomical Journal. 144 (3): 78. arXiv:1206.5768. Bibcode:2012AJ....144...78W. doi:10.1088/0004-6256/144/3/78. hdl:11577/2526313. ISSN 1538-3881. S2CID 118679035.
  15. 1 2 3 4 Wiklind, T.; Combes, F.; Henkel, C.; Wyrowski, F. (1997-07-01). "Molecular gas in the elliptical galaxy NGC 759. Interferometric CO observations". Astronomy and Astrophysics. 323: 727–738. arXiv:astro-ph/9702080. Bibcode:1997A&A...323..727W. ISSN 0004-6361.
  16. 1 2 3 4 Vlasyuk, V. V.; Sil'chenko, O. K. (2000-02-01). "NGC 759: A giant elliptical with a just-forming decoupled nucleus". Astronomy and Astrophysics. 354: 28–34. Bibcode:2000A&A...354...28V. ISSN 0004-6361.
  17. 1 2 3 Leeuw, Lerothodi L.; Davidson, Jacqueline; Dowell, C. Darren; Matthews, Henry E. (2008). "Spatially Resolved Imaging at 350 μm of Cold Dust in Nearby Elliptical Galaxies". The Astrophysical Journal. 677 (1): 249. arXiv:0801.0591. Bibcode:2008ApJ...677..249L. doi:10.1086/528838. ISSN 0004-637X. S2CID 14316328.
  18. ↑ Wood-Vasey, W. M.; Farris, B.; Weisz, D.; Li, W. D. (2002). "Supernovae 2002ez, 2002fa, and 2002fb". International Astronomical Union Circular (7967): 1. Bibcode:2002IAUC.7967....1W.
  19. ↑ "Bright Supernovae – 2002". rochesterastronomy.org. Retrieved 2019-01-11.
  20. ↑ "SN 2002fb". Transient Name Server. IAU. Retrieved 20 March 2026.