NGC 5965 explained

NGC 5965
Epoch:J2000
Type:Sb[1]
Dist Ly:149 ± 22 Mly (45.7 ± 6.7 Mpc)
Z:0.011381 ± 0.000017
H Radial V:3,412 ± 5 km/s
Appmag V:11.9[2]
Size V:6.16 × 0.84
Constellation Name:Draco
Names:UGC 9914, CGCG 297-016, MCG +10-22-020, PGC 55459

NGC 5965 is a spiral galaxy located in the constellation Draco. It is located at a distance of circa 150 million light years from Earth, which, given its apparent dimensions, means that NGC 5965 is about 260,000 light years across. It was discovered by William Herschel on May 5, 1788.[3]

Two supernovae have been observed in NGC 5965: SN 2001cm (type II, mag. 17.5) and SN 2018cyg (type II, mag. 17).[4] [5]

NGC 5965 is seen nearly edge-on, with an inclination of 80 degrees. Dust is seen across the galactic disk, while there is also a red dust lane at the nucleus.[6] The bulge is X-shaped, that suggests that the galaxy is actually barred.[7] NGC 5965 along with another edge-on galaxy, NGC 5746, were the galaxies used to confirm that peanut shaped bulges are associated with the presence of a bar, by spectrographically observing the disturbance caused at the velocity distributions of the galaxies.[8] [9] The galaxy features some level of disk disturbance, like a warp, as the outer part of the disk along with a ring-like dust lane appear to be on a different plane from the bulge, but it could also be a projection effect.[10] [11] When observed in the K band, the galaxy features a stellar ring.[11]

NGC 5965 lies in a galaxy filament which also includes NGC 5987 and its loose group,[12] which includes NGC 5981, NGC 5982, NGC 5985, three galaxies known as the Sampler.[13]

Notes and References

  1. Web site: NASA/IPAC Extragalactic Database . Results for NGC 5965 . 2016-01-18 .
  2. Web site: Revised NGC Data for NGC 5965 . spider.seds.org . 25 November 2018.
  3. Web site: Seligman . Courtney . NGC 5965 (= PGC 55459) . Celestial Atlas . 19 November 2018.
  4. http://www.cbat.eps.harvard.edu/lists/Supernovae.html List of Supernovae
  5. Web site: Bright Supernova pages - Most prolific galaxies . www.rochesterastronomy.org.
  6. Peletier . R. F. . Balcells . M. . Davies . R. L. . Andredakis . Y. . Vazdekis . A. . Burkert . A. . Prada . F. . Galactic bulges from Hubble Space Telescope NICMOS observations: ages and dust . Monthly Notices of the Royal Astronomical Society . 11 December 1999 . 310 . 3 . 703–716 . 10.1046/j.1365-8711.1999.02980.x. free . 1999MNRAS.310..703P . astro-ph/9910153 . 197491499 .
  7. Molaeinezhad . A. . Falcón-Barroso . J. . Martínez-Valpuesta . I. . Khosroshahi . H. G. . Balcells . M. . Peletier . R. F. . Establishing the level of cylindrical rotation in boxy/peanut bulges . Monthly Notices of the Royal Astronomical Society . 17 December 2015 . 456 . 1 . 692–709 . 10.1093/mnras/stv2697. free . 1511.05572. 55647755 .
  8. Kuijken . Konrad . Merrifield . Michael R. . Establishing the connection between peanut-shaped bulges and galactic bars . The Astrophysical Journal . April 1995 . 443 . L13 . 10.1086/187824. 1995ApJ...443L..13K . astro-ph/9501114 . 18228313 .
  9. Athanassoula . E. . Lia Athanassoula. Bureau . M. . Bar Diagnostics in Edge-on Spiral Galaxies. II. Hydrodynamical Simulations . The Astrophysical Journal . 10 September 1999 . 522 . 2 . 699–717 . 10.1086/307677. 1999ApJ...522..699A . astro-ph/9904206 . 119472198 .
  10. Miskolczi . A. . Bomans . D. J. . Dettmar . R.-J. . Tidal streams around galaxies in the SDSS DR7 archive . Astronomy & Astrophysics . 8 December 2011 . 536 . A66 . 10.1051/0004-6361/201116716. 1102.2905 . 118086769 .
  11. Bianchi . S. . The dust distribution in edge-on galaxies . Astronomy & Astrophysics . 26 June 2007 . 471 . 3 . 765–773 . 10.1051/0004-6361:20077649. 0705.1471 . 19022161 .
  12. Narayanan . Anand . Wakker . Bart P. . Savage . Blair D. . Keeney . Brian A. . Shull . J. Michael . Stocke . John T. . Sembach . Kenneth R. . Cosmic origins spectrograph and FUSE observations of T ~ 105 K gas in a nearby galaxy filament . The Astrophysical Journal . 1 October 2010 . 721 . 2 . 960–974 . 10.1088/0004-637X/721/2/960. 1008.2797 . 2010ApJ...721..960N . 119289803 .
  13. Makarov. Dmitry. Karachentsev. Igor. Galaxy groups and clouds in the local (z~ 0.01) Universe. Monthly Notices of the Royal Astronomical Society. 21 April 2011. 412. 4. 2498–2520. 10.1111/j.1365-2966.2010.18071.x. free . 2011MNRAS.412.2498M. 1011.6277. 119194025.

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