NGC 4030

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NGC 4030
HAWK-I NGC 4030.jpg
Observation data (J2000 epoch)
Constellation Virgo
Right ascension 12h 00m 23.643s[2]
Declination –01° 05′ 59.87″[2]
Helio radial velocity 1,465[3] km/s
Distance 63.6 ± 4.9 Mly (19.5 ± 1.5 Mpc)[3]
Type SA(s)bc[3]
Apparent dimensions (V) 3′.8 × 2′.9[4]
Apparent magnitude (V) 10.6[4]
Other designations
PGC 37845, UGC 6993[3]
See also: Galaxy, List of galaxies

NGC 4030 is a grand design spiral galaxy[5] located about 64[3] million light years away in the constellation Virgo. With an apparent visual magnitude of 10.6, it is visible with a small telescope as a 3 arc minute wide feature about 4.75° to the southeast of the star Beta Virginis.[4] It is inclined by an angle of 47.1°[3] to the line of sight from the Earth and is receding at a velocity of 1,465 km/s.[3]

The morphological classification of NGC 4030 in the De Vaucouleurs system is SA(s)bc,[3] which indicates a spiral structure (SA) with no bar (s) and moderate to loosely wound arms (bc).[6] The inner part of the galaxy shows a complex structure with multiple spiral arms, which becomes a symmetric, double arm pattern beyond 49″ from the core.[5] The central bulge is relatively young with an estimated age of two billion years,[7] while the nucleus is inactive.[8]

In 2007, a supernova explosion was discovered in the galaxy from images taken on February 19 from the 1 m Swope telescope at Las Campanas Observatory in Chile. Designated SN 2007aa, it was a type IIP[9] supernova positioned 68″.5 north and 60″.8 east of the galactic nucleus.[10] The progenitor was a red giant star with 8.5–16.5 times the mass of the Sun.[9]

References[edit]

  1. ^ HAWK-I image of NGC 4030, European Southern Observatory, October 27, 2010, retrieved 2013-07-19. 
  2. ^ a b Skrutskie, M. F. et al. (February 2006), "The Two Micron All Sky Survey (2MASS)", Astrophysical Journal 131 (2): 1163–1183, Bibcode:2006AJ....131.1163S, doi:10.1086/498708. 
  3. ^ a b c d e f g h Crowther, Paul A. (January 2013), "On the association between core-collapse supernovae and H II regions", Monthly Notices of the Royal Astronomical Society 428 (3): 1927–1943, arXiv:1210.1126, Bibcode:2013MNRAS.428.1927C, doi:10.1093/mnras/sts145. 
  4. ^ a b c O'Meara, Stephen James (2007), Steve O'Meara's Herschel 400 Observing Guide, Cambridge University Press, p. 133, ISBN 0521858933. 
  5. ^ a b Grosbøl, P.; Dottori, H. (June 2012), "Star formation in grand-design, spiral galaxies. Young, massive clusters in the near-infrared", Astronomy & Astrophysics 542: A39, arXiv:1204.5599, Bibcode:2012A&A...542A..39G, doi:10.1051/0004-6361/201118099. 
  6. ^ Buta, Ronald J. et al. (2007), Atlas of Galaxies, Cambridge University Press, pp. 13–17, ISBN 0521820480. 
  7. ^ Ocvirk, P. et al. (December 2008), "Extragalactic archeology in integrated light: A test case with NGC 4030", Astronomische Nachrichten 329: 980, Bibcode:2008AN....329..980O, doi:10.1002/asna.200811075. 
  8. ^ Hicks, E. K. S. et al. (May 2013), "Fueling Active Galactic Nuclei. I. How the Global Characteristics of the Central Kiloparsec of Seyferts Differ from Quiescent Galaxies", The Astrophysical Journal 768 (2): 107, arXiv:1303.4399, Bibcode:2007CBET..850....1F, doi:10.1088/0004-637X/768/2/107. 
  9. ^ a b Chornock, Ryan et al. (April 2010), "Large Late-Time Asphericities in Three Type IIP Supernovae", The Astrophysical Journal 713 (2): 1363–1375, arXiv:0912.2465, Bibcode:2010ApJ...713.1363C, doi:10.1088/0004-637X/713/2/1363. 
  10. ^ Folatelli, G. et al. (February 2007), "Supernova 2007aa in NGC 4030", Central Bureau Electronic Telegrams 850: 1, Bibcode:2007CBET..850....1F.