NGC 5982

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NGC 5982
NGC 5982.png
NGC 5982 by Hubble Space Telescope
Observation data (J2000 epoch)
Constellation Draco
Right ascension 15h 38m 39.8s [1]
Declination +59° 21′ 21″ [1]
Redshift 0.010064 ± 0.000031 [1]
Helio radial velocity 3,017 ± 9 km/s [1]
Distance 123 ± 34 Mly (37.6 ± 10.5 Mpc) [1]
Apparent magnitude  (V)11.0 [2]
Characteristics
Type E3 [1]
Apparent size  (V)3.0′ × 2.1′ [1]
Other designations
UGC 9961, CGCG 297-024, MCG +10-22-029, PGC 55674 [1]

NGC 5982 is an elliptical galaxy located in the constellation Draco. It is located at a distance of circa 130 million light years from Earth, which, given its apparent dimensions, means that NGC 5982 is about 100,000 light years across. It was discovered by William Herschel on May 25, 1788. [3]

NGC 5982 has a kinematically decoupled nucleus, with its major axis being nearly perpendicular to the rotation of the galaxy. [4] NGC 5982 features many shells in its envelope, nearly 26. The shells form circular arcs, with the further being located at a radius of 150 arcseconds along the major axis of the galaxy, [5] while the innermost one lies 8 arcseconds off the nucleus. [6] The shells and the kinematically decoupled nucleus are the result of the merger of the elliptical galaxy with a small elliptical galaxy. [5]

The galaxy has globular clusters that belong in two populations, red and blue. The age of the globular clusters in NGC 5982 is over 5 billion years. [7] The luminosity of NGC 5982 is dominated by light emitted by old stars. [5] In the centre of NGC 5982 lies a supermassive black hole whose mass is estimated to be 8.3×108  M☉ (108.92M☉) based on the M–sigma relation. [8] The nucleus may display low level activity and has been categorised as a possible LINER. [9] [5]

NGC 5981 (right), NGC 5982 (centre), and NGC 5985 (left) form a close trio of galaxies. Ngc 5981-82-85.jpg
NGC 5981 (right), NGC 5982 (centre), and NGC 5985 (left) form a close trio of galaxies.

NGC 5982 belongs to a galaxy group known as the NGC 5982 group. Other members of the group include the galaxies NGC 5976, NGC 5981, NGC 5985, NGC 5987, and NGC 5989. [10] NGC 5981, a spiral galaxy seen edge-on, lies at a separation of 6.3 arcminutes from NGC 5982 and NGC 5985, a spiral galaxy seen face-on, lies at a separation of 7.7 arcminutes. [11] The three galaxies are known as the Draco Trio or the Draco Group, although there is no evidence that they form a compact group. [12]

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<span class="mw-page-title-main">NGC 720</span> Galaxy in the constellation Cetus

NGC 720 is an elliptical galaxy located in the constellation Cetus. It is located at a distance of circa 80 million light years from Earth, which, given its apparent dimensions, means that NGC 720 is about 110,000 light years across. It was discovered by William Herschel on October 3, 1785. The galaxy is included in the Herschel 400 Catalogue. It lies about three and a half degrees south and slightly east from zeta Ceti.

<span class="mw-page-title-main">NGC 2336</span> Galaxy in the constellation Camelopardalis

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<span class="mw-page-title-main">NGC 5965</span> Spiral galaxy in the constellation Draco

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.

<span class="mw-page-title-main">NGC 1380</span> Galaxy in the constellation Fornax

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<span class="mw-page-title-main">NGC 4636</span> Galaxy in the constellation Virgo

NGC 4636 is an elliptical galaxy located in the constellation Virgo. It is a member of the NGC 4753 Group of galaxies, which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster. It is located at a distance of about 55 million light years from Earth, which, given its apparent dimensions, means that NGC 4636 is about 105,000 light years across.

<span class="mw-page-title-main">NGC 5846</span> Galaxy in the constellation Virgo

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<span class="mw-page-title-main">NGC 1386</span> Galaxy in the constellation Eridanus

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<span class="mw-page-title-main">IC 1459</span> Elliptical galaxy in the constellation of Grus

IC 1459 is an elliptical galaxy located in the constellation Grus. It is located at a distance of circa 85 million light-years from Earth, which, given its apparent dimensions, means that IC 1459 is about 130,000 light-years across. It was discovered by Edward Emerson Barnard in 1892.

<span class="mw-page-title-main">NGC 4278</span> Galaxy in the constellation Coma Berenices

NGC 4278 is an elliptical galaxy located in the constellation Coma Berenices. It is located at a distance of circa 55 million light years from Earth, which, given its apparent dimensions, means that NGC 4278 is about 65,000 light years across. It was discovered by William Herschel on March 13, 1785. NGC 4278 is part of the Herschel 400 Catalogue and can be found about one and 3/4 of a degree northwest of Gamma Comae Berenices even with a small telescope.

<span class="mw-page-title-main">NGC 2974</span> Galaxy in the constellation Sextans

NGC 2974 is a lenticular galaxy located in the constellation Sextans. It is located at a distance of circa 90 million light years from Earth, which, given its apparent dimensions, means that NGC 2974 is about 90,000 light years across. It was discovered by William Herschel on January 6, 1785. NGC 2974 is located in the sky about 2 and a half degrees south-south east of Iota Hydrae and more than 6 degrees northeast of Alphard. A 10th magnitude star lies next to the galaxy, thus making it a challenging object at low magnifications. NGC 2974 is part of the Herschel 400 Catalogue.

<span class="mw-page-title-main">NGC 4306</span> Dwarf barred lenticular galaxy in the constellation Virgo

NGC 4306 is a dwarf barred lenticular galaxy located about 100 million light-years away in the constellation Virgo. The galaxy was discovered by astronomer Heinrich d'Arrest on April 16, 1865. Although considered to be a member of the Virgo Cluster, its high radial velocity and similar distance as NGC 4305 suggest that NGC 4306 is a background galaxy. NGC 4306 is a companion of NGC 4305 and appears to be interacting with it.

<span class="mw-page-title-main">NGC 3656</span> Peculiar galaxy in the constellation Ursa Major

NGC 3656 is a peculiar galaxy formed by the collision of two galaxies in the constellation of Ursa Major. It is located about 135 million light years away from Earth, which means, given its apparent dimensions, that NGC 3656 is approximately 70,000 light years across. It was discovered by William Herschel on April 14, 1789.

<span class="mw-page-title-main">NGC 4365</span> Elliptical galaxy in the constellation Virgo

NGC 4365 is an elliptical galaxy located in the constellation Virgo. It was discovered by William Herschel on April 13, 1784.

References

  1. 1 2 3 4 5 6 7 8 "NASA/IPAC Extragalactic Database". Results for NGC 5982. Retrieved 2016-01-18.
  2. ↑ "Revised NGC Data for NGC 5982". spider.seds.org. Retrieved 25 November 2018.
  3. ↑ Seligman, Courtney. "NGC 5982 (= PGC 55674)". Celestial Atlas. Retrieved 19 November 2018.
  4. ↑ Emsellem, Eric; Cappellari, Michele; Peletier, Reynier F.; McDermid, Richard M.; Bacon, R.; Bureau, M.; Copin, Y.; Davies, Roger L.; Krajnović, Davor; Kuntschner, Harald; Miller, Bryan W.; de Zeeuw, P. Tim (11 August 2004). "The SAURON project – III. Integral-field absorption-line kinematics of 48 elliptical and lenticular galaxies". Monthly Notices of the Royal Astronomical Society. 352 (3): 721–743. arXiv: astro-ph/0404034 . Bibcode:2004MNRAS.352..721E. doi:10.1111/j.1365-2966.2004.07948.x. S2CID   13202056.
  5. 1 2 3 4 del Burgo, C.; Carter, D.; Sikkema, G. (6 November 2007). "Spatial distribution of dust in the shell elliptical NGC 5982". Astronomy & Astrophysics. 477 (1): 105–116. doi: 10.1051/0004-6361:20077925 .
  6. ↑ Sikkema, G.; Carter, D.; Peletier, R. F.; Balcells, M.; del Burgo, C.; Valentijn, E. A. (26 March 2007). "HST/ACS observations of shell galaxies: inner shells, shell colours and dust". Astronomy & Astrophysics. 467 (3): 1011–1024. arXiv: astro-ph/0703588 . Bibcode:2007A&A...467.1011S. doi:10.1051/0004-6361:20077078. S2CID   18392338.
  7. ↑ Sikkema, G.; Peletier, R. F.; Carter, D.; Valentijn, E. A.; Balcells, M. (16 October 2006). "Globular cluster systems of six shell galaxies". Astronomy & Astrophysics. 458 (1): 53–67. arXiv: astro-ph/0606385 . Bibcode:2006A&A...458...53S. doi:10.1051/0004-6361:20054606. S2CID   11803473.
  8. ↑ Stone, Nicholas C.; Metzger, Brian D. (1 January 2016). "Rates of stellar tidal disruption as probes of the supermassive black hole mass function". Monthly Notices of the Royal Astronomical Society. 455 (1): 859–883. arXiv: 1410.7772 . Bibcode:2016MNRAS.455..859S. doi:10.1093/mnras/stv2281. S2CID   119308901.
  9. ↑ Ho, Luis C.; Filippenko, Alexei V.; Sargent, Wallace L. W. (October 1997). "A Search for "Dwarf Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies". The Astrophysical Journal Supplement Series. 112 (2): 315–390. arXiv: astro-ph/9704107 . Bibcode:1997ApJS..112..315H. doi:10.1086/313041. S2CID   17086638.
  10. ↑ Makarov, Dmitry; Karachentsev, Igor (21 April 2011). "Galaxy groups and clouds in the local (z~ 0.01) Universe". Monthly Notices of the Royal Astronomical Society. 412 (4): 2498–2520. arXiv: 1011.6277 . Bibcode:2011MNRAS.412.2498M. doi:10.1111/j.1365-2966.2010.18071.x. S2CID   119194025. Archived from the original on 31 January 2016. Retrieved 24 December 2018.
  11. ↑ de Vaucouleurs, Gerard Henri; de Vaucouleurs, Antoinette; Shapley, Harlow (1964). Reference catalogue of bright galaxies. Austin: University of Texas Press. Bibcode:1964rcbg.book.....D.
  12. ↑ "The Dragon Slayer - NGC 5985, NGC 5982, NGC 5981 by Ken Crawford". Universe Today. 10 September 2008.
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