IC 2006

Last updated
IC 2006
Elliptical galaxy IC 2006.jpg
IC 2006, imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation Eridanus
Right ascension 03h 54m 28.427s [1]
Declination −35° 58′ 01.75″ [1]
Redshift 0.004610 [2]
Heliocentric radial velocity 1382 [2]
Distance 65.36 ± 0.46  Mly (20.04 ± 0.14  Mpc) [3]
Group or cluster Fornax Cluster [3]
Apparent magnitude  (B)12.39 [4]
Characteristics
Type E1 [5]
Size35 000 light-years in diameter
Apparent size  (V)2.1′ × 1.8′ [2]
Notable featuresEarly-type galaxy
Other designations
AM 0532-360, MGC-06-09-037, PGC 14077

IC 2006 is an elliptical galaxy in the constellation Eridanus. The galaxy was discovered on 3 October 1897 by the American astronomer Lewis A. Swift. [6] It is estimated to be around 60 to 70 million light years (20 megaparsecs) away, [2] in the Fornax Cluster. [3] The galaxy is one of the smaller in the Fornax cluster, with a diameter of only 35 000 light-years.

IC 2006 is an early-type galaxy with a Hubble classification of E1, [5] but has also been listed as a lenticular galaxy with a morphological type of SA0−. [2] Despite their name, early-type galaxies are much older than spiral galaxies, and mostly comprise old, red-colored stars. Very little star formation occurs in these galaxies; the lack of star formation in elliptical galaxies appears to start at the center and then slowly propagates outward. [7] Its age is estimated to be 8.1 ± 1.7 billion years. [8]

An image taken by the Hubble Space Telescope in 2015 shows a characteristically smooth profile, with no spiral arms. [9] However, IC 2006 has a ring surrounding it. The ring appears to rotate in a direction opposite to the rest of the body, but this may be explained by a polar ring with an elliptical shape. [10]

ground-based image from the DESI legacy imaging survey, showing the ring around the galaxy IC 2006 legacy dr10.jpg
ground-based image from the DESI legacy imaging survey, showing the ring around the galaxy

References

  1. 1 2 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 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi: 10.1086/498708 . ISSN   0004-6256. S2CID   18913331.
  2. 1 2 3 4 5 "NED results for object IC 2006". National Aeronautics and Space Administration / Infrared Processing and Analysis Center . Retrieved 5 March 2017.
  3. 1 2 3 Tully, R. Brent; et al. (2013). "Cosmicflows-2: The Data". The Astronomical Journal. 146 (4): 86. arXiv: 1307.7213 . Bibcode:2013AJ....146...86T. doi:10.1088/0004-6256/146/4/86. S2CID   118494842. Distances accessed using SIMBAD.
  4. ↑ "IC 2006". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 5 March 2017.
  5. 1 2 Trinchieri, G.; Rampazzo, R.; Mazzei, P.; Marino, A.; Wolter, A. (2015). "Investigating early-type galaxy evolution with a multiwavelength approach - I. X-ray properties of 12 galaxies observed with Swift and XMM-Newton". Monthly Notices of the Royal Astronomical Society. 449 (3): 3021–3042. Bibcode:2015MNRAS.449.3021T. doi: 10.1093/mnras/stv466 .
  6. ↑ Seligman, Courtney. "Index Catalog objects: IC 2000 - 2049". cseligman.com. Retrieved 5 March 2017.
  7. ↑ Howell, Elizabeth (2015). "Colossal Ancient Galaxies Die from the Inside Out". space.com. Retrieved 5 March 2017.
  8. ↑ Panuzzo, P.; Rampazzo, R.; Bressan, A.; Vega, O.; Annibali, F.; Buson, L. M.; Clemens, M. S.; Zeilinger, W. W. (2011). "Nearby early-type galaxies with ionized gas. VI. The Spitzer-IRS view. Basic data set analysis and empirical spectral classification". Astronomy & Astrophysics. 528: A10. arXiv: 1010.2323 . Bibcode:2011A&A...528A..10P. doi:10.1051/0004-6361/201015908. S2CID   117915425.
  9. ↑ "Elliptical galaxy IC 2006 | ESA/Hubble". www.spacetelescope.org. 2015. Archived from the original on 21 April 2015. Retrieved 5 March 2017.
  10. ↑ Bertsik, P. P.; Kolesnik, I. G. (1992). "IC 2006 - an elliptical galaxy with a polar ring". Kinematika I Fizika Nebesnykh Tel. 8 (4): 92–96. Bibcode:1992KFNT....8...92B.


This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.