NGC 1084

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NGC 1084
A spiral home to exploding stars.jpg
NGC 1084 by the Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationEridanus
Right ascension02h 45m 59.926s[1]
Declination−07° 34′ 43.10″[1]
Redshift1,406 km/s[2]
Distance62.7 Mly (19.23 Mpc)[2]
Apparent magnitude (V)10.7
Characteristics
TypeSAc[3][4]
Apparent size (V)3′.2 × 1′.8[3]
Other designations
LEDA 10464, MCG-01-08-007[5] PGC 10464[3]

NGC 1084 is an unbarred spiral galaxy in the constellation Eridanus. It is located at a distance of about 63 million light-years away from the Milky Way. The galaxy was discovered by William Herschel on 10 January 1785. It has multiple spiral arms, which are not well defined.[6] It belongs in the same galaxy group with NGC 988, NGC 991, NGC 1022, , NGC 1042, , NGC 1052 and . This group is in turn associated with the Messier 77 group.[7]

Star formation in the galaxy is chaotic and not confined to the spiral arms, but the rate is not high enough to classify it as a starburst galaxy. Star formation has taken place in small bursts in the last 40 million years. The cause of this activity has been proposed as a merger with a gas-rich dwarf galaxy. A radio source has been detected 3.5' south-west of the galaxy, connected to it by a bridge.[8] NGC 1084 has been the site of 5 supernovae explosions over a period of 49 years: SN 1963P (mag. 14), SN 1996an (Type II, mag. 14), SN 1998dl (Type II, mag. 16), SN 2009H (Type II, mag. 17), and SN 2012ec (Type IIP, mag. 14,5).[9][10]

Gallery[]

  • GALEX

  • NGC 1084 by 2MASS

  • SDSS

  • NGC 1084 by the Hubble Space Telescope

  • Hubble Space Telescope image of NGC 1084.

References[]

  1. ^ a b Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131: 1163–1183. doi:10.1086/498708. ISSN 0004-6256.
  2. ^ a b Tully, R. Brent; et al. (2016). "Cosmicflows-3". The Astronomical Journal. 152 (2): 21. arXiv:1605.01765. Bibcode:2016AJ....152...50T. doi:10.3847/0004-6256/152/2/50. 50.
  3. ^ a b c "NASA/IPAC Extragalactic Database". Results for NGC 1084. Retrieved 2016-01-02.
  4. ^ Ann, H. B.; et al. (2015). "A Catalog of Visually Classified Galaxies in the Local (z ∼ 0.01) Universe". The Astrophysical Journal Supplement Series. 217 (2): 27–49. arXiv:1502.03545. Bibcode:2015ApJS..217...27A. doi:10.1088/0067-0049/217/2/27. S2CID 119253507.
  5. ^ "NGC 1084". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-04-07.
  6. ^ Eskridge, Paul B.; et al. (November 2002). "Near-Infrared and Optical Morphology of Spiral Galaxies". The Astrophysical Journal Supplement Series. 143 (1): 73–111. arXiv:astro-ph/0206320. Bibcode:2002ApJS..143...73E. doi:10.1086/342340. S2CID 15491635.
  7. ^ Makarov, Dmitry; Karachentsev, Igor (2011). "Galaxy groups and clouds in the local (z∼ 0.01) Universe". Monthly Notices of the Royal Astronomical Society. 412 (4): 2498–2520. arXiv:1011.6277. Bibcode:2011MNRAS.412.2498M. doi:10.1111/j.1365-2966.2010.18071.x.
  8. ^ Ramya, S.; et al. (October 2007). "Study of star formation in NGC 1084". Monthly Notices of the Royal Astronomical Society. 381 (2): 511–524. arXiv:0707.2366. Bibcode:2007MNRAS.381..511R. doi:10.1111/j.1365-2966.2007.12232.x.
  9. ^ "List of Supernovae". IAU Central Bureau for Astronomical Telegrams. Retrieved 29 December 2015.
  10. ^ "A spiral home to exploding stars". Hubble Space Telescope. 31 March 2014.

External links[]


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