Astronomy:NGC 3377

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NGC 3377
Hubble Space Telescope image of NGC 3377
Observation data (J2000 epoch)
ConstellationLeo[1]
Right ascension 10h 47m 42.40s[2]
Declination+13° 59′ 08.3″[2]
Redshift0.002218±0.000008[3]
Distance37 Mly (11.2 Mpc)[4]
Apparent magnitude (V)10.2[5][1]
Characteristics
TypeE5–6[6]
Apparent size (V)5.2′ × 3.0′[7]
Other designations
NGC 3377, UGC 5899, PGC 32249[3]

NGC 3377 is an elliptical galaxy of intermediate luminosity[6] in the equatorial constellation of Leo.[1] It was discovered on April 8, 1784 by German-British astronomer William Herschel.[8] This galaxy has an apparent visual magnitude of 10.2[5] with an angular size of 5.2′ × 3.0′.[7] It is located at a distance of 37 million light-years (11.2 Mpc)[4] and has a diameter of approximately 40,000 ly.[7] NGC 3377 is a member of the M96 Group of galaxies. A very faint companion galaxy, NGC 3377A, is at an angular separation of 7.1′ to the northwest.[7]

The morphological classification of NGC 3377 is E5–6, indicating an elliptical galaxy with an elongated shape.[6] The velocity distribution shows a sharp rise within an arcsecond of the core, demonstrating the presence of a supermassive black hole.[9] This object has an estimated mass of 8.0+0.5
−0.6×107 M☉.[4] The galactic halo has a virial mass estimated at (3.6±0.6)×1011 M☉.[6] It has a system of globular clusters with an estimated 400–500 members.[10]

References

  1. ↑ 1.0 1.1 1.2 Finlay, Warren H. (2014). Concise Catalogue of Deep-Sky Objects. The Patrick Moore Practical Astronomy Series (2nd ed.). Springer Cham. p. 249. doi:10.1007/978-3-319-03170-5. ISBN 978-3-319-03169-9. 
  2. ↑ 2.0 2.1 Skrutskie, Michael F. (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. 
  3. ↑ 3.0 3.1 "Extragalactic Database". Results for NGC 3377. NASA/IPAC. http://ned.ipac.caltech.edu. 
  4. ↑ 4.0 4.1 4.2 "Populating the Galaxy Velocity Dispersion - Supermassive Black Hole Mass Diagram: A Catalogue of (Mbh, σ) Values", Publications of the Astronomical Society of Australia 25 (4): 167–175, November 2008, doi:10.1071/AS08013, Bibcode: 2008PASA...25..167G 
  5. ↑ 5.0 5.1 Frommert, Hartmut. "NGC 3377". http://spider.seds.org/ngc/ngc.cgi?3377. 
  6. ↑ 6.0 6.1 6.2 6.3 Caso, Juan P. (April 2022). "The mass profile of NGC 3377 from a Bayesian approach". Monthly Notices of the Royal Astronomical Society 511 (4): 5314–5327. doi:10.1093/mnras/stac323. Bibcode: 2022MNRAS.511.5314C. 
  7. ↑ 7.0 7.1 7.2 7.3 Bratton, Mark (2011). The complete guide to the Herschel objects : Sir William Herschel's star clusters, nebulae, and galaxies. Cambridge University Press. p. 293. ISBN 978-0-521-76892-4. 
  8. ↑ Seligman, Courtney. "NGC Objects: NGC 3350 - 3399". Celestial Atlas. https://cseligman.com/text/atlas/ngc33a.htm#3377. 
  9. ↑ Kormendy, John (May 1998). "The Mass Distribution in the Elliptical Galaxy NGC 3377: Evidence for a 2 X 10^8 M_☉ Black Hole". The Astronomical Journal 115 (5): 1823–1839. doi:10.1086/300313. Bibcode: 1998AJ....115.1823K. 
  10. ↑ Harris, William E. (September 1990). "CCD photometry of globular clusters in NGC 3377". Publications of the Astronomical Society of the Pacific 102 (655): 966–971. 

Further reading

Coordinates: Sky map 10h 47m 42.4s, +13° 59′ 08″ Template:NGC objects:3001-4000



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