NGC 5665
The morphological classification of NGC 5665 is unclear and differs by author. In the De Vaucouleurs system it was classified as SAB(rs)c pec?, which indicates a weakly-barred spiral galaxy (SAB) with a transitional inner ring structure (rs), loosely wound spiral arms (c), and suspected peculiarities (pec?). The galactic plane is inclined at an angle of 53°±5° to the plane of the sky, with the major axis aligned along a position angle of 145°.
Evidence suggests that NGC 5665 underwent a gravitational interaction with another galaxy some 500 million years ago, swallowing a smaller companion. It is somewhat asymmetrical in appearance, retaining a single main spiral arm and the remains of several others. The galaxy is rich in dust and gas with a small bar at the center. There are numerous sites of star formation in the arm that match the age of the interaction. The spectrum of the core is a blend between a LINER and an H II region.
References
- ^ Skrutskie, Michael F.; et al. (February 1, 2006), "The Two Micron All Sky Survey (2MASS)", The Astronomical Journal, 131 (2): 1163–1183, Bibcode:2006AJ....131.1163S, doi:10.1086/498708, ISSN 0004-6256, S2CID 18913331.
- ^ Chengalur, Jayaram N.; Salpeter, E. E.; Terzian, Yervant (December 1993), "Dynamics of Binary Galaxies. I. Wide Pairs", Astrophysical Journal, 419: 30, Bibcode:1993ApJ...419...30C, doi:10.1086/173456.
- ^ Kourkchi, Ehsan; et al. (October 23, 2020), "Cosmicflows-4: The Catalog of ∼10,000 Tully–Fisher Distances", The Astrophysical Journal, 902 (2): 145, arXiv:2009.00733, Bibcode:2020ApJ...902..145K, doi:10.3847/1538-4357/abb66b, ISSN 1538-4357.
- ^ "NED results for object NGC 5665", NASA/IPAC Extragalactic Database, NASA, retrieved 2015-10-19.
- ^ Artamonov, B. P.; et al. (September 2000), "BVRI CCD photometry of the peculiar galaxies NGC 5605 and NGC 5665", Astronomy Reports, 44 (9): 569–578, Bibcode:2000ARep...44..569A, doi:10.1134/1.1307552.
- ^ Thomas, H. C.; Dunne, L.; Clemens, M. S.; Alexander, P.; Eales, S.; Green, D. A. (February 2002), "The distribution of atomic gas and dust in nearby galaxies - I. Presentation of matched-resolution VLA H I and SCUBA 850-μm maps", Monthly Notices of the Royal Astronomical Society, 329 (4): 747–758, Bibcode:2002MNRAS.329..747T, doi:10.1046/j.1365-8711.2002.05035.x.
- ^ "NGC 5665", SIMBAD, Centre de données astronomiques de Strasbourg, retrieved 2024-04-14.
- ^ Seligman, COurtney, "NGC Objects: NGC 5650 - 5699", Celestial Atlas, retrieved 2024-04-14.
External links
Media related to NGC 5665 at Wikimedia Commons- Image NGC 5665
- Distance Archived 2011-06-07 at the Wayback Machine
- SIMBAD Data
