NGC 3614

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NGC 3614
N3614s.jpg
NGC 3614 by the 32-inch Schulman Telescope at Mount Lemmon Observatory
Observation data (J2000 epoch)
Constellation Ursa Major
Right ascension 11h 18m 21.3533s [1]
Declination 45° 44′ 53.737″ [1]
Redshift 0.007769 ± 0.000005 [1]
Heliocentric radial velocity 2,329 ± 1 km/s [1]
Distance 120 ± 32 Mly (36.9 ± 9.8 Mpc) [1]
Apparent magnitude  (V)11.6 [2]
Characteristics
Type SAB(r)c [1]
Apparent size  (V)4.6′ × 2.6′ [2]
Other designations
UGC 6318, CGCG 242-019, MCG +08-21-015, PGC 34561 [1]

NGC 3614 is an intermediate spiral galaxy located in the constellation Ursa Major. It is located at a distance of about 120 million light years from Earth, which, given its apparent dimensions, means that NGC 3614 is about 150,000 light years across. It was discovered by William Herschel on February 5, 1788. [3]

Contents

Characteristics

NGC 3614 is an intermediate spiral galaxy with a small bright nucleus and traces of a faint bar. [4] However, there is no bar detected in the infrared images obtained by the Spitzer Space Telescope, with the galaxy's morphological type being characterised as SA(r)bc by the ARRAKIS study. The galaxy features a narrow inner ring measuring 0.47 by 0.24 arcminutes. [5] From the inner ring emerge two main, knotty and filamentary arms that start branching after three quarters of a revolution creating a multiple spiral arm pattern. Many HII regions and star forming knots are visible in the arms. [6] The star formation rate of the galaxy is estimated to be 0.3 M☉ per year. [7] The galactic disk extends 5′.4 in its major east–west axis and 3′ along its minor north–south axis. [8]

Adam Block discovered the galaxy has two stellar streams. The brighter stellar stream begins at the northern part of the galactic disk and extends 4′.6 at a position angle of 314° with respect to the nucleus of NGC 3614 (in the direction of galaxy 2MASSX J11180157+4547453). The stream is uniform in its brightness and devoid of any discernable structure. The second stream appears to be associated with galaxy SDSS J111838+454721.7. The total length of this stream is approximately 3′.8 at a position angle of 40°. [8] The galaxy could be the progenitor of the stream and both the trailing and leading tidal tails are visible. [9]

Nearby galaxies

NGC 3614 seems to form a pair with NGC 3614A, which lies at distance of 2.6 arcminutes, which appears diffuse and patchy, [10] however it is a background galaxy. [9] NGC 3614 forms a group with NGC 3583 and NGC 3595. [11]

References

  1. 1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database". Results for NGC 3614. Retrieved 2026-01-26.
  2. 1 2 "Revised NGC Data for NGC 3614". spider.seds.org. Retrieved 26 January 2026.
  3. ↑ Seligman, Courtney. "NGC 3614". Celestial Atlas. Retrieved 19 November 2018.
  4. ↑ de Vaucouleurs, Gerard Henri; de Vaucouleurs, Antoinette; Shapley, Harlow (1964). Reference catalogue of bright galaxies. Austin: University of Texas Press. Bibcode:1964rcbg.book.....D.
  5. ↑ Comerón, S.; Salo, H.; Laurikainen, E.; Knapen, J. H.; Buta, R. J.; Herrera−Endoqui, M.; Laine, J.; Holwerda, B. W.; Sheth, K.; Regan, M. W.; Hinz, J. L.; Muñoz–Mateos, J. C.; Gil de Paz, A.; Menéndez–Delmestre, K.; Seibert, M.; Mizusawa, T.; Kim, T.; Erroz–Ferrer, S.; Gadotti, D. A.; Athanassoula, E.; Bosma, A.; Ho, L. C. (February 2014). "ARRAKIS: atlas of resonance rings as known in the S 4 G". Astronomy & Astrophysics. 562: A121. doi:10.1051/0004-6361/201321633.
  6. ↑ Sandage, A., Bedke, J. (1994), The Carnegie Atlas of Galaxies. Volume I, Carnegie Institution of Washington
  7. ↑ Morales−Vargas, A; Torres−Papaqui, J P; Rosales−Ortega, F F; Sánchez, S F; Chow–Martínez, M; Ortega−Minakata, R A; Trejo−Alonso, J J; Robleto−Orús, A C; Romero−Cruz, F J; Neri−Larios, D M (31 October 2020). "Star formation in CALIFA survey perturbed galaxies – I. Effects of tidal interactions". Monthly Notices of the Royal Astronomical Society. 499 (3): 4370–4393. doi: 10.1093/mnras/staa2833 .
  8. 1 2 Block, Adam (10 June 2021). "Discovery of Stellar Streams around NGC 3614". Research Notes of the AAS. 5 (6): 142. Bibcode:2021RNAAS...5..142B. doi: 10.3847/2515-5172/ac0912 . ISSN   2515-5172. CC-BY icon.svg This article contains quotations from this source, which is available under the Creative Commons Attribution 4.0 Unported (CC BY 4.0) license.
  9. 1 2 Martínez-Delgado, David; Stein, Michael; Sakowska, Joanna D.; Weigelt, M. Maurice; Román, Javier; Donatiello, Giuseppe; Roca-Fàbrega, Santi; Schirmer, Mischa; Grebel, Eva K.; Saifollahi, Teymoor; Kanipe, Jeff; Gómez-Flechoso, M. Angeles; Akhlaghi, Mohammad; Javanmardi, Behnam; Wu, Gang; Eskandarlou, Sepideh; Bomans, Dominik J.; Henkel, Cristian; Block, Adam; Hanson, Mark; Schedler, Johannes; Teuwen, Karel; GaBany, R. Jay; Perez, Alvaro Ibañez; Crawford, Ken; Promper, Wolfgang; Jimenez, Manuel; Farràs-Aloy, Sílvia; Miró-Carretero, Juan (1 September 2025). "Stellar tidal streams around nearby spiral galaxies with deep imaging from amateur telescopes". Astronomy & Astrophysics. 701: A182. arXiv: 2504.02071 . Bibcode:2025A&A...701A.182M. doi:10.1051/0004-6361/202554980. ISSN   0004-6361.
  10. ↑ Uppsala General Catalogue of Galaxies, 1973, Acta Universitatis Upsalienis, Nova Regiae Societatis Upsaliensis, Series V: A Vol. 1
  11. ↑ Crook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (February 2007). "Groups of Galaxies in the Two Micron All Sky Redshift Survey". The Astrophysical Journal. 655 (2): 790–813. arXiv: astro-ph/0610732 . Bibcode:2007ApJ...655..790C. doi:10.1086/510201.
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