Astronomy:NGC 4051

From HandWiki
Short description: Galaxy in the constellation Ursa Major
NGC 4051
An explosive galaxy NGC 4051.jpg
Hubble Space Telescope image of NGC 4051
Observation data (J2000 epoch)
ConstellationUrsa Major
Right ascension 12h 03m 09.686s[1]
Declination+44° 31′ 52.54″[1]
Redshift0.002336[2]
Helio radial velocity700 km/s[2]
Distance54.14 ± 0.98 Mly (16.6 ± 0.3 Mpc)[3]
Group or clusterUrsa Major Cluster
Apparent magnitude (V)12.92[4]
Apparent magnitude (B)11.08[4]
Characteristics
TypeSAB(rs)bc[2]
Size78,800 ly (24,160 pc)[2][note 1]
Apparent size (V)6.00′ × 4.98′[2][note 1]
Other designations
UGC 7030, MGC+08-22-059, PGC 38068[4]

NGC 4051 is an intermediate spiral galaxy in the constellation of Ursa Major.[2] It was discovered on 6 February 1788 by John Herschel.[5]

NGC 4051 contains a supermassive black hole with a mass of 1.73 million M☉.[6] This galaxy was studied by the Multicolor Active Galactic Nuclei Monitoring 2m telescope.[7]

Three supernovae have been discovered in NGC 4051: SN 1983I (type Ic, mag. 13.5),[8] SN 2003ie (type II, mag. 15.2),[9] and SN 2010br (type Ib/c, mag. 17.7).[4][10]

The galaxy is a Seyfert galaxy that emits bright X-rays. However, in early 1998 the X-ray emission ceased as observed by the Beppo-SAX satellite. X-ray emission had risen back to normal by August 1998.[11]

NGC 4051 is a member of the Ursa Major Cluster.[12][13][14] Its peculiar velocity is −490 ± 34 km/s, consistent with the rest of the cluster.[3]

References

  1. ↑ 1.0 1.1 Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W. et al. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal 131 (2): 1163–1183. doi:10.1086/498708. ISSN 0004-6256. Bibcode: 2006AJ....131.1163S. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "NED results for object NGC 3697". National Aeronautics and Space Administration / Infrared Processing and Analysis Center. http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+4051&extend=no&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES. 
  3. ↑ 3.0 3.1 Yuan, W.; Macri, L. M.; Peterson, B. M.; Riess, A. G.; Fausnaugh, M. M.; Hoffmann, S. L.; Anand, G. S.; Bentz, M. C. et al. (2021). "The Cepheid Distance to the Narrow-line Seyfert 1 Galaxy NGC 4051". The Astrophysical Journal 913 (1): 3. doi:10.3847/1538-4357/abf24a. Bibcode: 2021ApJ...913....3Y. 
  4. ↑ 4.0 4.1 4.2 4.3 "NGC 4051". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+4051. 
  5. ↑ "New General Catalog Objects: NGC 4050 - 4099". http://cseligman.com/text/atlas/ngc40a.htm#4051. 
  6. ↑ Denney, K. D.; Watson, L. C.; Peterson, B. M.; Pogge, R. W.; Atlee, D. W.; Bentz, M. C.; Bird, J. C.; Brokofsky, D. J. et al. (2009). "A revised broad-line region radius and black hole mass for the narrow-line Seyfert 1 NGC 4051". The Astrophysical Journal 702 (2): 1353–1366. doi:10.1088/0004-637X/702/2/1353. Bibcode: 2009ApJ...702.1353D. 
  7. ↑ Suganuma, Masahiro; Yoshii, Yuzuru; Kobayashi, Yukiyasu; Minezaki, Takeo; Enya, Keigo; Tomita, Hiroyuki; Aoki, Tsutomu; Koshida, Shintaro et al. (2006). "Reverberation Measurements of the Inner Radius of the Dust Torus in Nearby Seyfert 1 Galaxies". The Astrophysical Journal 639 (1): 46–63. doi:10.1086/499326. ISSN 0004-637X. Bibcode: 2006ApJ...639...46S. 
  8. ↑ Transient Name Server entry for SN 1983I. Retrieved 29 March 2023.
  9. ↑ Transient Name Server entry for SN 2003ie. Retrieved 29 March 2023.
  10. ↑ Transient Name Server entry for SN 2010br. Retrieved 29 March 2023.
  11. ↑ "Now you see it ...". New Scientist (2145): 23. 1 August 1998. https://www.newscientist.com/article/mg15921455-200-now-you-see-it/. 
  12. ↑ Tully, R. Brent; Verheijen, Marc A. W.; Pierce, Michael J.; Huang, Jia-Sheng; Wainscoat, Richard J. (December 1996). "The Ursa Major Cluster of Galaxies.I.Cluster Definition and Photometric Data" (in en). The Astronomical Journal 112: 2471. doi:10.1086/118196. ISSN 0004-6256. Bibcode: 1996AJ....112.2471T. 
  13. ↑ P. Fouque, E. Gourgoulhon, P. Chamaraux, G. Paturel; Gourgoulhon; Chamaraux; Paturel (1992). "Groups of galaxies within 80 Mpc. II - The catalogue of groups and group members". Astronomy and Astrophysics Supplement 93: 211–233. Bibcode: 1992A&AS...93..211F. 
  14. ↑ "The Ursa Major Groups". http://www.atlasoftheuniverse.com/galgrps/uma.html. 

Notes

  1. ↑ 1.0 1.1 POSS1 103a-O values used.

External links

Coordinates: Sky map 12h 03m 09.6s, +44° 31′ 55″




Retrieved from "https://handwiki.org/wiki/index.php?title=Astronomy:NGC_4051&oldid=3345924"