NGC 4527 explained

NGC 4527
Epoch:J2000
Type:SAB(s)bc[1]
Dist Ly:48.9 Mly
Z:1736 ± 1 km/s
Appmag V:11.4
Size V:6.2 × 2.1
Constellation Name:Virgo
Names:UGC 7721, PGC 41789

NGC 4527 is a spiral galaxy in the constellation Virgo. It 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.[2]

Characteristics

NGC 4527 is an intermediate spiral galaxy similar to the Andromeda Galaxy[3] and is located at a distance not well determined, but usually is considered to be an outlying member of the Virgo Cluster of galaxies,[4] being placed within the subcluster known as S Cloud.[5]

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.[6] However said starburst is still weak and seems to be on its earliest phases.[6]

Supernovae

Three supernovae have been observed in NGC 4527. Harlow Shapley discovered SN 1915A (type unknown, mag. 15.5) on 20 March 1915.[7] [8] [9] Several astronomers reported the discovery of SN 1991T (type Ia-pec, mag. 13) on 13 April 1991.[10] SN 2004gn (type Ic, mag. 16.6) was discovered on 1 December 2004 by the Lick Observatory Supernova Search (LOSS).[11] [12] [13]

Notes and References

  1. Web site: NASA/IPAC Extragalactic Database . Results for NGC 4527 . 2013-10-12.
  2. Web site: The Virgo III Groups . Atlas of the Universe . 2010-11-27 .
  3. Web site: Best of AOP: NGC 4527 . NOAO . 2013-10-12.
  4. Web site: Notes for object NGC 4527 . NASA-IPAC Extragalactic Database . 2013-10-12.
  5. Web site: Galaxy On Line Database Milano Network (GOLDMine) . 2012-08-06.
  6. 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 . 2003PASJ...55...87S . 10.1093/pasj/55.1.87. free .
  7. https://www.wis-tns.org/object/1915A Transient Name Server entry for SN 1915A.
  8. http://www.cbat.eps.harvard.edu/lists/Supernovae.html Central Bureau for Astronomical Telegrams list of Supernovae.
  9. Shapley . Harlow . A Faint Nova in the Nebula of Andromeda . Publications of the Astronomical Society of the Pacific . 1917 . 29 . 213 . 1917PASP...29Q.213S.
  10. https://www.wis-tns.org/object/1991T Transient Name Server entry for SN 1991T.
  11. https://www.wis-tns.org/object/2004gn Transient Name Server entry for SN 2004gn.
  12. Li . W. . Supernovae 2004gn and 2004go . International Astronomical Union Circular . 2004 . 8448 . 2 . 2004IAUC.8448....2L.
  13. Web site: Bright Supernovae - 2004, entry for SN 2004gn . Bishop . David . Rochester Astronomy . 25 November 2024.

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