NGC 4527
| NGC 4527 | |
|---|---|
.jpg) NGC 4527 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 34m 08.466s |
| Declination | +02° 39′ 14.414″ |
| Redshift | 0.005791 |
| Heliocentric radial velocity | 1736 ± 1 km/s |
| Distance | 48.9 Mly |
| Apparent magnitude (V) | 11.4 |
| Characteristics | |
| Type | SAB(s)bc |
| Size | ~104,100 ly (31.92 kpc) (estimated) |
| Apparent size (V) | 6.2′ × 2.1′ |
| Other designations | |
| IRAS 12315+0255, UGC 7721, MCG +01-32-101, PGC 41789, CGCG 042-156 | |
NGC 4527 is a spiral galaxy in the constellation Virgo. It was discovered by German-British astronomer William Herschel on 23 February 1784.
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.
Characteristics
NGC 4527 is an intermediate spiral galaxy and is located at a distance not well determined, but usually is considered to be an outlying member of the Virgo Cluster of galaxies, being placed within the subcluster known as S Cloud.
NGC 4527 is also a starburst galaxy, with 2.5 billion solar masses of molecular hydrogen concentrated within its innermost regions. However, this starburst is still weak and seems to be on its earliest phases.
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.
- 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. 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.
- SN 2004gn (Type Ic, mag. 16.6) was discovered by the Lick Observatory Supernova Search (LOSS) on 1 December 2004.
See also
References
- 1 2 3 4 5 6 7 8 9 "Results for NGC 4527". NASA/IPAC Extragalactic Database. Retrieved 2013-10-12.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 4527". Celestial Atlas. Retrieved 6 December 2024.
- ↑ "The Virgo III Groups". Atlas of the Universe. Retrieved 2010-11-27.
- ↑ "Best of AOP: NGC 4527". NOAO. Retrieved 2013-10-12.
- ↑ "Notes for object NGC 4527". NASA-IPAC Extragalactic Database. Retrieved 2013-10-12.
- ↑ "Galaxy On Line Database Milano Network (GOLDMine)". Retrieved 2012-08-06.
- 1 2 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.
- ↑ "SN 1915A". Transient Name Server. IAU. Retrieved 6 December 2024.
- ↑ "List of Supernovae". Central Bureau for Astronomical Telegrams. IAU. Retrieved 28 March 2023.
- ↑ Shapley, Harlow (1917). "A Faint Nova in the Nebula of Andromeda". Publications of the Astronomical Society of the Pacific. 29 (171): 213–217. Bibcode:1917PASP...29Q.213S. doi:10.1086/122669.
- ↑ Waagen, E.; Evans, R. O.; Villi, M.; Cortini, G.; Johnson, W.; McNaught, R. H.; Mueller, J.; Cappellaro, E.; Cutispoto, G.; La Franca, F.; Goldschmidt, C.; Kirshner, R. P.; Peters, J. (1991). "Supernova 1991T in NGC 4527". International Astronomical Union Circular (5239): 1. Bibcode:1991IAUC.5239....1W.
- ↑ "SN 1991T". Transient Name Server. IAU. Retrieved 6 December 2024.
- ↑ Lira, P.; Suntzeff, Nicholas B.; Phillips, M. M.; Hamuy, Mario; Maza, José; Schommer, R. A.; Smith, R. C.; Wells, Lisa A.; Avilés, R.; Baldwin, J. A.; Elias, J. H.; González, L.; Layden, A.; Navarrete, M.; Ugarte, P.; Walker, Alistair R.; Williger, Gerard M.; Baganoff, F. K.; Crotts, Arlin P. S.; Rich, R. Michael; Tyson, N. D.; Dey, A.; Guhathakurta, P.; Hibbard, J.; Kim, Y. -C.; Rehner, Daniel M.; Siciliano, E.; Roth, Joshua; Seitzer, Patrick; Williams, T. B. (1998). "Optical Light Curves of the Type IA Supernovae SN 1990N and SN 1991T". The Astronomical Journal. 115 (1): 234. arXiv:astro-ph/9709262. Bibcode:1998AJ....115..234L. doi:10.1086/300175.
- ↑ 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. arXiv:1409.0116. Bibcode:2014MNRAS.445..711S. doi:10.1093/mnras/stu1777.
- ↑ Li, W. (2004). "Supernovae 2004gn and 2004go". International Astronomical Union Circular (8448): 2. Bibcode:2004IAUC.8448....2L.
- ↑ "SN 2004gn". Transient Name Server. IAU. Retrieved 6 December 2024.
- ↑ Bishop, David. "Bright Supernovae - 2004, entry for SN 2004gn". Rochester Astronomy. Retrieved 25 November 2024.
External links
Media related to NGC 4527 at Wikimedia Commons
