NGC 4536

NGC 4536 is an intermediate spiral galaxy in the constellation Virgo located about 10° south of the midpoint of the Virgo cluster. However, it is not considered a member of the cluster[6] but is a member of the Virgo II Groups which form a southern extension of the Virgo Cluster.[7][8] The morphological classification in the De Vaucouleurs system is SAB(rs)bc, which indicates it is a weakly barred spiral galaxy with a hint of an inner ring structure plus moderate to loosely wound arms.[6] It does not have a classical bulge around the nucleus.[9]

NGC 4536
NGC 4536, as taken by the Mount Lemmon Skycenter
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension 12h 34m 27.129s[1]
Declination+02° 11′ 16.37″[1]
Redshift0.006031 ± 0.000003[2]
Helio radial velocity1808 ± 1[3] km/s
Distance48.7 ± 0.9 Mly (14.9 ± 0.3 Mpc)[4]
Apparent magnitude (V)11.1[5]
Characteristics
TypeSAB(rs)bc[6]
Apparent size (V)7′.6 × 3′.2[5]
Other designations
UGC 7732,[5] PGC 41823[5]

NGC 4536 has the optical characteristics of an HII galaxy, which means it is undergoing a strong burst of star formation.[9] This is occurring prominently in the ring that surrounds the bar and nucleus.[10] Based upon the level of X-ray emission from the core, it may have a small supermassive black hole with 104–106 times the mass of the Sun.[9]

On March 8, 1981, a type Ia supernova was discovered 51 arcseconds to the northeast of the galactic center. It reached a peak visual magnitude of 12 on March 8 before steadily fading from view over the next two months. No prior supernova events have been observed in this galaxy.[6]

See also

References
  1. Skrutskie, M. F.; et al. (February 2006), "The Two Micron All Sky Survey (2MASS)", The Astronomical Journal, 131 (2): 1163–1183, Bibcode:2006AJ....131.1163S, doi:10.1086/498708.
  2. Grogin, Norman A.; et al. (December 1998), "A Complete Redshift Survey to the Zwicky Catalog Limit in a 2h × 15° Region around 3C 273" (PDF), The Astrophysical Journal Supplement Series, 119 (2): 277–285, arXiv:astro-ph/9807067, Bibcode:1998ApJS..119..277G, doi:10.1086/313164.
  3. Falco, Emilio E.; et al. (April 1999). "The Updated Zwicky Catalog (UZC)". The Publications of the Astronomical Society of the Pacific. 111 (758): 438–452. arXiv:astro-ph/9904265. Bibcode:1999PASP..111..438F. doi:10.1086/316343.
  4. Jensen, Joseph B.; et al. (February 2003). "Measuring Distances and Probing the Unresolved Stellar Populations of Galaxies Using Infrared Surface Brightness Fluctuations". Astrophysical Journal. 583 (2): 712–726. arXiv:astro-ph/0210129. Bibcode:2003ApJ...583..712J. doi:10.1086/345430.
  5. "NASA/IPAC Extragalactic Database". Results for NGC 4536. Retrieved 2007-03-31.
  6. Buta, R. J.; Turner, A. (January 1983), "The photometric properties of the bright Type I supernova 1981b in NGC 4536", Publications of the Astronomical Society of the Pacific, 95: 72–78, Bibcode:1983PASP...95...72B, doi:10.1086/131120.
  7. Fouqué, P.; Solanes, J. M.; Sanchis, T.; Balkowski, C. (2001-09-01). "Structure, mass and distance of the Virgo cluster from a Tolman-Bondi model". Astronomy & Astrophysics. 375 (3): 770–780. arXiv:astro-ph/0106261. Bibcode:2001A&A...375..770F. doi:10.1051/0004-6361:20010833. ISSN 0004-6361.
  8. "The Virgo II Groups". www.atlasoftheuniverse.com. Retrieved 2018-04-13.
  9. McAlpine, W.; et al. (February 2011), "Black Holes in Bulgeless Galaxies: An XMM-Newton Investigation of NGC 3367 and NGC 4536", The Astrophysical Journal, 728 (1): 25, arXiv:1012.0834, Bibcode:2011ApJ...728...25M, doi:10.1088/0004-637X/728/1/25.
  10. Davies, Richard I.; Sugai, Hajime; Ward, Martin J. (October 1997), "Molecular hydrogen emission in NGC 4536", Monthly Notices of the Royal Astronomical Society, 291 (2): 314–320, Bibcode:1997MNRAS.291..314D, doi:10.1093/mnras/291.2.314.
  11. "Starbursts in Virgo". www.spacetelescope.org. Retrieved 10 April 2017.
  • Media related to NGC 4536 at Wikimedia Commons


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