Astronomy:NGC 2776

From HandWiki
NGC 2776
Liverpool Telescope image of NGC 2776
Observation data (J2000 epoch)
ConstellationLynx
Right ascension 09h 12m 14.52s[1]
Declination+44° 57′ 17.48″[1]
Redshift0.008759[1]
Helio radial velocity2,626 km/s[1]
Distance136 Mly
Apparent magnitude (V)11.4[2]
Characteristics
TypeSAB(rs)c[1]
Size~84,600 ly (25.95 kpc) (estimated)[1]
Other designations
2MIG 1236, ECO 03209, PGC 25946, IRAS 09089+4509, KUG 0908+451, MCG +08-17-056, NSA 157091, SIG 0690, UGC 4838, KIG 0314[1]

NGC 2776 is an intermediate spiral galaxy located in the constellation of Lynx. The redshift of the galaxy is (z) 0.0087[1] and it was discovered in March 1828 by the British astronomer named John Herschel, who described it as a bright object, round with a bright middle.[3]

Description

NGC 2776 is classified as an isolated spiral galaxy of type SAB(rs)c[4] or an early type Sc that is described as face-on.[5] The galaxy shows the presence of spiral arms considered as fragmented, with star formation activity as seen in optical imaging.[4] These arms appear to emerge from a smooth inner disk on the outer edge with high surface brightness.[6] One of the arms appear to be blue; this also corresponds to an approximate stellar age of less than 107 years.[7] The central nucleus of the galaxy has a bright appearance.[8]

There is also a central region present in the galaxy with a reddened appearance and described as elongated.[4][9] An inner ring feature is shown based on JHK imaging.[4] A weak bar feature is suggested, although a study published in June 1997 suggested it lacks a bar.[9][10] Regions of H II have also been detected inside the galaxy.[7]

The supermassive black hole lying inside the center of the galaxy is estimated to be 6.9 Mʘ, based on a study of low-luminosity galaxies published in 2007.[11]

SDSS image of NGC 2776.

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 "NED Search results for NGC 2776". https://ned.ipac.caltech.edu/byname?objname=NGC+2776&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1. 
  2. ↑ "Revised NGC Data for NGC 2776". http://spider.seds.org/ngc/revngcic.cgi?NGC2276. 
  3. ↑ "New General Catalog Objects: NGC 2750 - 2799". https://cseligman.com/text/atlas/ngc27a.htm#2776. 
  4. ↑ 4.0 4.1 4.2 4.3 Hernández-Toledo, H. M.; Ortega-Esbrí, S. (August 2008). "Broad-band BVRI photometry of isolated spiral galaxies" (in en). Astronomy and Astrophysics 487 (2): 485–502. doi:10.1051/0004-6361:200809666. ISSN 0004-6361. Bibcode: 2008A&A...487..485H. https://www.aanda.org/articles/aa/pdf/2008/32/aa09666-08.pdf. 
  5. ↑ Carozzi-Meyssonnier, N. (September 1979). "Rotation and mass of NGC 2776." (in en). Astronomy and Astrophysics Supplement Series 37: 529–539. ISSN 0365-0138. Bibcode: 1979A&AS...37..529C. https://ui.adsabs.harvard.edu/abs/1979A&AS...37..529C/abstract. 
  6. ↑ Sandage, Allan; Bedke, John (1994). "The Carnegie atlas of galaxies" (in en). The Carnegie Atlas of Galaxies. Volumes I 638. Bibcode: 1994cag..book.....S. https://ui.adsabs.harvard.edu/abs/1994cag..book.....S/abstract. 
  7. ↑ 7.0 7.1 Takeuchi, Tsutomu T.; Tomita, Akihiko; Nakanishi, Kouichiro; Ishii, Takako T.; Iwata, Ikuru; Saitō, Mamoru (April 1999). "Photometric Properties of Kiso Ultraviolet-Excess Galaxies in the Lynx-Ursa Major Region" (in en). The Astrophysical Journal Supplement Series 121 (2): 445–472. doi:10.1086/313203. ISSN 0067-0049. Bibcode: 1999ApJS..121..445T. 
  8. ↑ de Vaucouleurs, Gerard Henri; de Vaucouleurs, Antoinette; Shapley, Harlow (1964). "Reference catalogue of bright galaxies" (in en). University of Texas Monographs in Astronomy. Bibcode: 1964rcbg.book.....D. https://ui.adsabs.harvard.edu/abs/1964rcbg.book.....D/abstract. 
  9. ↑ 9.0 9.1 Hernandez-Toledo, H.; Zendejas-Dominguez, J.; Avila-Reese, V. (2007-05-14), "BVRI Surface Photometry of Isolated Spiral Galaxies", The Astronomical Journal 134 (6): 2286–2307, doi:10.1086/521358, Bibcode: 2007AJ....134.2286H 
  10. ↑ Mulchaey, John S.; Regan, Michael W.; Kundu, Arunav (June 1997). "The Fueling of Nuclear Activity. I. A Near-Infrared Imaging Survey of Seyfert and Normal Galaxies" (in en). The Astrophysical Journal Supplement Series 110 (2): 299–319. doi:10.1086/313005. ISSN 0067-0049. Bibcode: 1997ApJS..110..299M. https://iopscience.iop.org/article/10.1086/313005/pdf. 
  11. ↑ Dong, X. Y.; De Robertis, M. M. (March 2006). "Low-Luminosity Active Galaxies and Their Central Black Holes" (in en). The Astronomical Journal 131 (3): 1236–1252. doi:10.1086/499334. ISSN 0004-6256. Bibcode: 2006AJ....131.1236D. 



Retrieved from "https://handwiki.org/wiki/index.php?title=Astronomy:NGC_2776&oldid=4286767"