Eisspeedway

NGC 4527

NGC 4527
SDSS image of the spiral galaxy NGC 4527.
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension12h 34m 08.4s[1]
Declination+02° 39′ 13″[1]
Redshift1736 ± 1 km/s[1]
Distance48.9 Mly
Apparent magnitude (V)11.4[1]
Characteristics
TypeSAB(s)bc[1]
Apparent size (V)6.2′ × 2.1′[1]
Other designations
UGC 7721,[1] PGC 41789[1]

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]

NGC 4527 by Hubble Space Telescope

References

  1. ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 4527. Retrieved 2013-10-12.
  2. ^ "The Virgo III Groups". Atlas of the Universe. Retrieved 2010-11-27.
  3. ^ "Best of AOP: NGC 4527". NOAO. Retrieved 2013-10-12.
  4. ^ "Notes for object NGC 4527". NASA-IPAC Extragalactic Database. Retrieved 2013-10-12.
  5. ^ "Galaxy On Line Database Milano Network (GOLDMine)". Retrieved 2012-08-06.
  6. ^ a b 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. Bibcode:2003PASJ...55...87S. doi:10.1093/pasj/55.1.87.
  7. ^ Transient Name Server entry for SN 1915A. Retrieved 28 March 2023.
  8. ^ Central Bureau for Astronomical Telegrams list of Supernovae. Retrieved 28 March 2023.
  9. ^ Shapley, Harlow (1917). "A Faint Nova in the Nebula of Andromeda". Publications of the Astronomical Society of the Pacific. 29: 213. Bibcode:1917PASP...29Q.213S.
  10. ^ Transient Name Server entry for SN 1991T. Retrieved 28 March 2023.
  11. ^ Transient Name Server entry for SN 2004gn. Retrieved 28 March 2023.
  12. ^ Li, W. (2004). "Supernovae 2004gn and 2004go". International Astronomical Union Circular. 8448: 2. Bibcode:2004IAUC.8448....2L.
  13. ^ Bishop, David. "Bright Supernovae - 2004, entry for SN 2004gn". Rochester Astronomy. Retrieved 25 November 2024.
  • Media related to NGC 4527 at Wikimedia Commons
Quelle: https://en.wikipedia.org/wiki/NGC_4527