Astronomy:NGC 4527

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NGC 4527
NGC 4527 imaged by SDSS
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension 12h 34m 08.466s[1]
Declination+02° 39′ 14.414″[1]
Redshift0.005791[1]
Helio radial velocity1736 ± 1 km/s[1]
Distance48.9 Mly
Apparent magnitude (V)11.4[1]
Characteristics
TypeSAB(s)bc[1]
Size~104,100 ly (31.92 kpc) (estimated)[1]
Apparent size (V)6.2′ × 2.1′[1]
Other designations
IRAS 12315+0255, UGC 7721, MCG+01-32-101, PGC 41789[1]

NGC 4527 is a spiral galaxy in the constellation Virgo. It was discovered by German-British astronomer William Herschel on 23 February 1784.[2]

NGC 4527 is a member of the M61 Group of galaxies, which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster.[3]

Characteristics

NGC 4527 is an intermediate spiral galaxy similar to the Andromeda Galaxy[4] and is located at a distance not well determined, but usually is considered to be an outlying member of the Virgo Cluster of galaxies,[5] being placed within the subcluster known as S Cloud.[6]

Unlike the Andromeda Galaxy, NGC 4527 is also a starburst galaxy, with 2.5 billion solar masses of molecular hydrogen concentrated within its innermost regions.[7] However said starburst is still weak and seems to be on its earliest phases.[7]

Supernovae

Three supernovae have been observed in NGC 4527:

  • SN 1915A (type unknown, mag. 15.5) was discovered by Heber Curtis on 20 March 1915.[8][9][10]
  • SN 1991T (Type Ia-pec, mag. 13) was discovered by Stephen Knight on 13 April 1991, and independently reported by Robert Evans, Mirko Villi, Giancarlo Cortini, and Wayne Johnson.[11][12] This supernova has been studied extensively as a peculiar and overluminous Type Ia, and is now used as a template, with similar events being classified as Type Ia-91T-like.[13][14]
  • SN 2004gn (Type Ic, mag. 16.6) was discovered by the Lick Observatory Supernova Search (LOSS) on 1 December 2004.[15][16][17]
NGC 4527 imaged by the Hubble Space Telescope

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 "Results for NGC 4527". https://ned.ipac.caltech.edu/byname?objname=NGC+4527. 
  2. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 4527". https://cseligman.com/text/atlas/ngc45.htm#4527. 
  3. ↑ "The Virgo III Groups". Atlas of the Universe. http://www.atlasoftheuniverse.com/galgrps/viriii.html. 
  4. ↑ "Best of AOP: NGC 4527". NOAO. http://www.noao.edu/outreach/aop/observers/n4527.html. 
  5. ↑ "Notes for object NGC 4527". NASA-IPAC Extragalactic Database. http://ned.ipac.caltech.edu/cgi-bin/datasearch?search_type=Note_id&objid=30967&objname=NGC%204527&img_stamp=YES&hconst=73.0&omegam=0.27&omegav=0.73&corr_z=1&of=table. 
  6. ↑ "Galaxy On Line Database Milano Network (GOLDMine)". http://goldmine.mib.infn.it/. 
  7. ↑ 7.0 7.1 Shibatsuka, T.; Matsushita, S.; Kohno, K.; Kawabe, R. (2003). "Multi-Line Observations of Molecular Gas in the Central Region of the Low Star-Formation Efficiency Starburst Galaxy NGC 4527". Publications of the Astronomical Society of Japan 55 (1): 87–101. doi:10.1093/pasj/55.1.87. Bibcode: 2003PASJ...55...87S. 
  8. ↑ "SN 1915A". IAU. https://www.wis-tns.org/object/1915A. 
  9. ↑ Central Bureau for Astronomical Telegrams list of Supernovae. Retrieved 28 March 2023.
  10. ↑ Shapley, Harlow (1917). "A Faint Nova in the Nebula of Andromeda". Publications of the Astronomical Society of the Pacific 29 (171): 213–217. doi:10.1086/122669. Bibcode: 1917PASP...29Q.213S. 
  11. ↑ Waagen, E.; Evans, R. O.; Villi, M.; Cortini, G.; Johnson, W.; McNaught, R. H.; Mueller, J.; Cappellaro, E. et al. (1991). "Supernova 1991T in NGC 4527". International Astronomical Union Circular (5239): 1. Bibcode: 1991IAUC.5239....1W. 
  12. ↑ "SN 1991T". IAU. https://www.wis-tns.org/object/1991T. 
  13. ↑ Lira, P.; Suntzeff, Nicholas B.; Phillips, M. M.; Hamuy, Mario; Maza, José; Schommer, R. A.; Smith, R. C.; Wells, Lisa A. et al. (1998). "Optical Light Curves of the Type IA Supernovae SN 1990N and SN 1991T". The Astronomical Journal 115 (1): 234. doi:10.1086/300175. Bibcode: 1998AJ....115..234L. 
  14. ↑ Sasdelli, Michele; Mazzali, P. A.; Pian, E.; Nomoto, K.; Hachinger, S.; Cappellaro, E.; Benetti, S. (2014). "Abundance stratification in Type Ia supernovae - IV. The luminous, peculiar SN 1991T". Monthly Notices of the Royal Astronomical Society 445 (1): 711. doi:10.1093/mnras/stu1777. Bibcode: 2014MNRAS.445..711S. 
  15. ↑ "SN 2004gn". IAU. https://www.wis-tns.org/object/2004gn. 
  16. ↑ Li, W. (2004). "Supernovae 2004gn and 2004go". International Astronomical Union Circular (8448): 2. Bibcode: 2004IAUC.8448....2L. 
  17. ↑ Bishop, David. "Bright Supernovae - 2004, entry for SN 2004gn". https://www.rochesterastronomy.org/sn2004/#2004gn. 



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