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NGC 759 is an elliptical galaxy located 230 million light-years away[2] in the constellation Andromeda. NGC 759 was discovered by astronomer by Heinrich d'Arrest on September 17, 1865.[3] It is a member of Abell 262.[4][5][6][7][8]

NGC 759
2MASS image of NGC 759.
Observation data (J2000 epoch)
ConstellationAndromeda
Right ascension01h 57m 50.3s[1]
Declination36° 20′ 35″[1]
Redshift0.015567[1]
Helio radial velocity4667 km/s[1]
Distance230 Mly (70.4 Mpc)[1]
Group or clusterAbell 262
Apparent magnitude (V)13.3[1]
Characteristics
TypeE[1]
Size~110,000 ly (33 kpc) (estimated)[1]
Apparent size (V)1.6 x 1.4[1]
Other designations
MCG 6-5-67, PGC 7397, UGC 1440[1]

Despite being classified as a radio galaxy,[9][10][11][12][13] the radio emission in NGC 759 could be due to star formation rather than an active galactic nucleus.[12][13]


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).[14] The dust disk also contains a smaller circumnuclear molecular gas ring that has star formation in H II regions.[15][16] These features may be the result of a merger of gas-rich disk galaxies[15][16][17] 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.[17] 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.[16]

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

Molecular gas


NGC 759 contains 2.4 × 109 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).[15] The gas may be the result of the same merger event that produced the circumnuclear molecular gas ring and the main disk.[16][15][17]


SN 2002fb


NGC 759 has had one supernova,[18] SN 2002fb which was discovered on September 6, 2002. It was classified as a type Ia supernova.[19][20][21]


See also



References


  1. "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. 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. 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. ISSN 1538-3881. S2CID 118679035.
  15. 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. 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. 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. "List of supernovae sorted by host name". Bright Supernova - Archives. Retrieved 2019-01-03.
  19. "Bright Supernovae - 2002". rochesterastronomy.org. Retrieved 2019-01-11.
  20. "2002fb - The Open Supernova Catalog". Retrieved 2019-01-11.
  21. "SN 2002fb | Transient Name Server". wis-tns.weizmann.ac.il. Retrieved 2019-01-11.




На других языках

[de] NGC 759

NGC 759 ist eine elliptische Galaxie vom Hubble-Typ E0 im Sternbild Andromeda am Nordsternhimmel. Die Galaxie weist neben einer Spiralstruktur, die nahezu in Draufsicht erscheint, einen um 40° geneigten Ring aus ionisierten Gas mit einem Durchmesser von 1 kpc auf.[4] Sie ist schätzungsweise 215 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 85.000 Lichtjahren. Die Galaxie gilt als Mitglied der Galaxiengruppe Abell 262.
- [en] NGC 759

[ru] NGC 759

NGC 759 (другие обозначения — UGC 1440, MCG 6-5-67, ZWG 522.87, IRAS01548+3605, PGC 7397) — эллиптическая галактика (E) в созвездии Андромеда.


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