Astronomy:NGC 3619

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NGC 3619
SDSS image of NGC 3619
Observation data (J2000 epoch)
ConstellationUrsa Major[1]
Right ascension 11h 19m 21.621s[2]
Declination+57° 45′ 27.66″[2]
Redshift0.005240[3]
Helio radial velocity1,567±47 km/s[3]
Distance87 Mly (26.8 Mpc)[4]
Apparent magnitude (V)11.5[1]
Apparent magnitude (B)12.6[3]
Characteristics
Type(R)SA(s)0+[5]
Apparent size (V)2.7′ × 2.3′[1]
Other designations
UGC 6330, MCG+10-16-115, PGC 34641[3]

NGC 3619 is an unbarred[5] lenticular galaxy located in the northern constellation of Ursa Major.[1] It was discovered by the German-British astronomer William Herschel on March 18, 1790.[6] This galaxy has an apparent visual magnitude of 11.5 and an angular size of 2.7′ × 2.3′.[1] It is located at a distance of 87 million light-years (26.8 Mpc),[4] where it is a member of a rich galaxy cluster with at least five members.[7][8]

The morphological classification of NGC 3619 is (R)SA(s)0+,[5] matching a lenticular galaxy (SA0) with no inner ring (s), and a system of outer shells (R).[8] It has a relatively large amount of gas with a spiral structure,[5] and an asymmetrical circumnuclear gaseous disk.[8] The gas is concentrated at the center where star formation is occurring.[7] The overall optical structure and gas enhancement suggests a past merger or accretion event, possibly as the result of an interaction with NGC 3625 or a dwarf galaxy.[9][7]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 Finlay, Warren H. (2014). Concise Catalogue of Deep-Sky Objects. The Patrick Moore Practical Astronomy Series (2nd ed.). Springer Cham. p. 259. doi:10.1007/978-3-319-03170-5. ISBN 978-3-319-03169-9. 
  2. ↑ 2.0 2.1 Skrutskie, Michael F. et al. (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 3.2 3.3 "NGC 3619". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+3619. 
  4. ↑ 4.0 4.1 Cappellari, Michele (11 May 2011). "The ATLAS3D project – I. A volume-limited sample of 260 nearby early-type galaxies: science goals and selection criteria". Monthly Notices of the Royal Astronomical Society 413 (2): 813–836. doi:10.1111/j.1365-2966.2010.18174.x. Bibcode: 2011MNRAS.413..813C. 
  5. ↑ 5.0 5.1 5.2 5.3 Sil'chenko, Olga K. et al. (2019). "The Gas Kinematics, Excitation, and Chemistry, in Connection with Star Formation, in Lenticular Galaxies". The Astrophysical Journal Supplement Series 244 (1): 6. doi:10.3847/1538-4365/ab3415. Bibcode: 2019ApJS..244....6S. 
  6. ↑ Seligman, Courtney. "New General Catalogue objects: NGC 3600 - 3649". https://cseligman.com/text/atlas/ngc36.htm. Retrieved 2021-06-01. 
  7. ↑ 7.0 7.1 7.2 Cortese, L.; Hughes, T. M. (December 2009). "Evolutionary paths to and from the red sequence: star formation and HI properties of transition galaxies at z ~ 0". Monthly Notices of the Royal Astronomical Society 400 (3): 1225–1240. doi:10.1111/j.1365-2966.2009.15548.x. Bibcode: 2009MNRAS.400.1225C. 
  8. ↑ 8.0 8.1 8.2 Sil'chenko, Olga K. (September 2019). "The Gas Kinematics, Excitation, and Chemistry, in Connection with Star Formation, in Lenticular Galaxies". The Astrophysical Journal Supplement Series 244 (1): id. 6. doi:10.3847/1538-4365/ab3415. Bibcode: 2019ApJS..244....6S. 
  9. ↑ van Driel, W. (July 1989). "Distribution and motions of atomic hydrogen in lenticular galaxies. VIII. The SO/a galaxies NGC 3619, 3626 and 3900". Astronomy and Astrophysics 218: 49–66. Bibcode: 1989A&A...218...49V. 

Coordinates: Sky map 11h 19m 21.621s, +57° 45′ 27.66″




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