Astronomy:IC 2574

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Short description: Dwarf spiral galaxy in the constellation of Ursa Major
IC 2574
IC 2574 HST.jpg
Picture of IC 2574 produced with Hubble's Advanced Camera for Surveys
Observation data (J2000 epoch)
ConstellationUrsa Major
Right ascension 10h 28m 23.62046s[1]
Declination+68° 24′ 43.4414″[1]
Redshift0.000160±0.000020[2]
Distance12.8 Mly (3.93 Mpc)[3]
Characteristics
TypeSABm[4]
Apparent size (V)12.02′ × 5.50′[5]
Other designations
Coddington's Nebula,[6] UGC 5666[7]

IC 2574, also known as Coddington's Nebula, is a dwarf spiral galaxy[6] discovered by American astronomer Edwin Foster Coddington in 1898.[8][9] Located in Ursa Major, a constellation in the northern sky, it is an outlying member of the M81 Group. It is believed that 90% of its mass is in the form of dark matter.[10] IC 2574 does not show evidence of interaction with other galaxies. It is currently forming stars; a UV analysis showed clumps of star formation 85 to 500 light-years (26 to 150 pc) in size.[11]

References

  1. ↑ 1.0 1.1 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G.  Gaia DR2 record for this source at VizieR.
  2. ↑ Paturel, G. et al. (2002). "Comparison LEDA/SIMBAD octobre 2002. Catalogue to be published in 2003". LEDA. Bibcode: 2002LEDA.........0P. 
  3. ↑ Karachentsev, Igor D. et al. (January 2017). "The Local Tully-Fisher Relation for Dwarf Galaxies". The Astronomical Journal 153 (1): 17. doi:10.3847/1538-3881/153/1/6. 6. Bibcode: 2017AJ....153....6K. 
  4. ↑ Khramtsova, M. S. et al. (May 2013). "Polycyclic aromatic hydrocarbons in spatially resolved extragalactic star-forming complexes". Monthly Notices of the Royal Astronomical Society 431 (2): 2006–2016. doi:10.1093/mnras/stt319. Bibcode: 2013MNRAS.431.2006K. 
  5. ↑ Paturel, G. et al. (December 2003), "HYPERLEDA. I. Identification and designation of galaxies", Astronomy and Astrophysics 412: 45–55, doi:10.1051/0004-6361:20031411, Bibcode: 2003A&A...412...45P. 
  6. ↑ 6.0 6.1 "APOD: 2012 June 22 – IC 2574: Coddington's Nebula". https://apod.nasa.gov/apod/ap120622.html. 
  7. ↑ "IC 2574". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=IC+2574. 
  8. ↑ "Some of The Named Galaxies". Indian Institute of Technology Kanpur. http://www.iitk.ac.in/ac/right/util/naga.htm. 
  9. ↑ Walter, Fabian; Brinks, Elias (1999). "Holes and Shells in the Interstellar Medium of the Nearby Dwarf Galaxy IC 2574". The Astronomical Journal (Institute of Physics) 118 (1): 273–301. doi:10.1086/300906. Bibcode: 1999AJ....118..273W. 
  10. ↑ Darling, David. "Coddington's Nebula (IC 2574)". https://www.daviddarling.info/encyclopedia/C/Coddingtons_Nebula.html. Retrieved 2019-01-16. 
  11. ↑ Mondal, Chayan; Subramaniam, Annapurni; George, Koshy (2021). "A tale of two nearby dwarf irregular galaxies WLM and IC 2574: As revealed by UVIT". Journal of Astrophysics and Astronomy 42 (2): 50. doi:10.1007/s12036-021-09761-z. Bibcode: 2021JApA...42...50M. 




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