Astronomy:NGC 4541
| NGC 4541 | |
|---|---|
| File:NGC 4541 SDSS.jpg NGC 4541 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 35m 10.6731s[1] |
| Declination | −00° 13′ 16.085″[1] |
| Redshift | 0.022966±0.0000170[1] |
| Helio radial velocity | 6,885±5 km/s[1] |
| Distance | 312.09 ± 9.57 Mly (95.688 ± 2.933 Mpc)[1] |
| Apparent magnitude (V) | 13.6g[1] |
| Characteristics | |
| Type | (R')SAB(r)bc[1] |
| Size | ~154,300 ly (47.32 kpc) (estimated)[1] |
| Apparent size (V) | 1.58′ × 0.68′[1] |
| Other designations | |
| IRAS 12326+0003, UGC 7749, MCG+00-32-024, PGC 41911[1] | |
NGC 4541 is an intermediate spiral galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 7,229±25 km/s, which corresponds to a Hubble distance of 347.8 ± 24.4 Mly (106.63 ± 7.47 Mpc).[1] However, eight non-redshift measurements give a closer mean distance of 312.09 ± 9.57 Mly (95.688 ± 2.933 Mpc).[2] It was discovered by German-British astronomer William Herschel on 1 January 1786.[3]
NGC 4541 is a Seyfert II galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[4][5] NGC 4541 is also a radio galaxy, i.e. it has giant regions of radio emission extending well beyond its visible structure.[6][5]
Supernovae
Two supernovae have been observed in NGC 4541:
- SN 2007gq (type unknown, mag. 16.6) was discovered by Berto Monard (it) on 4 August 2007.[7][8]
- PTF11bpx (Type II, mag. 19.5) was discovered by the Palomar Transient Factory on 4 April 2011.[9]
See also
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Results for object NGC 4541". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+4541.
- ↑ "Distance Results for NGC 4541". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+4541.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 4541". https://cseligman.com/text/atlas/ngc45.htm#4541.
- ↑ Chen, Yan-Ping; Zaw, Ingyin; Farrar, Glennys R.; Elgamal, Sana (2022). "A Uniformly Selected, Southern-sky 6dF, Optical AGN Catalog". The Astrophysical Journal Supplement Series 258 (2): 29. doi:10.3847/1538-4365/ac4157. Bibcode: 2022ApJS..258...29C.
- ↑ 5.0 5.1 "NGC 4541". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+4541.
- ↑ Lin, Yen-Ting; Huang, Hung-Jin; Chen, Yen-Chi (2018). "An Analysis Framework for Understanding the Origin of Nuclear Activity in Low-power Radio Galaxies". The Astronomical Journal 155 (5): 188. doi:10.3847/1538-3881/aab5b4. Bibcode: 2018AJ....155..188L.
- ↑ Monard, L. A. G. (2007). "Supernova 2007gq in NGC 4541". Central Bureau Electronic Telegrams (1033): 1. Bibcode: 2007CBET.1033....1M. http://www.cbat.eps.harvard.edu/cbet/001000/CBET001033.txt.
- ↑ "SN 2007gq". IAU. https://www.wis-tns.org/object/2007gq.
- ↑ Gal-Yam, A.; Nugent, P.; Silverman, J.; Badenes, C.; Matheson, T.; Walker, E.; Arcavi, I.; Xu, D. et al. (2011). "PTF weekly SN discovery report, April 15, 2011". The Astronomer's Telegram 3288: 1. Bibcode: 2011ATel.3288....1G. https://www.astronomerstelegram.org/?read=3288.
External links
- NGC 4541 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
12h 35m 10.6731s, −00° 13′ 16.085″
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