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]
Heliocentric 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]

Related Research Articles

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NGC 5866 is a lenticular galaxy in the constellation Draco. NGC 5866 was most likely discovered by Pierre Méchain or Charles Messier in 1781, and independently found by William Herschel in 1788. Measured orbital velocities of its globular cluster system imply that dark matter makes up only 34%±45% of the mass within 5 effective radii, a notable paucity.

<span class="mw-page-title-main">NGC 1427</span> Galaxy in the constellation Fornax

NGC 1427 is a low-luminosity elliptical galaxy located approximately 71 million light-years away from Earth. It was discovered by John Frederick William Herschel on November 28, 1837. It is a member of the Fornax Cluster. The galaxy has a stellar mass of 7.9 × 1010M☉, and a total mass of 9.4 × 1010M☉. However, the mass of the dark matter halo surrounding the galaxy is around 4.3 × 1012M☉.

<span class="mw-page-title-main">NGC 278</span> Galaxy in the constellation Cassiopeia

NGC 278 is an isolated spiral galaxy in the northern circumpolar constellation of Cassiopeia, near the southern constellation boundary with Andromeda. It lies at a distance of approximately 39 megalight-years from the Milky Way, giving it a physical scale of 190 ly (58 pc) per arcsecond. The galaxy was discovered on December 11, 1786 by German-born astronomer William Herschel. J. L. E. Dreyer described it as, "considerably bright, pretty large, round, 2 stars of 10th magnitude near".

<span class="mw-page-title-main">NGC 6340</span> Galaxy in the constellation Draco

NGC 6340 is an unbarred spiral galaxy in the northern constellation of Draco. It was discovered by German-British astronomer William Herschel on June 6, 1788. The galaxy is located approximately 55 million light-years (17 Mpc) away, and is receding with a heliocentric radial velocity of 1,217 km/s. It is the largest member of a triplet of galaxies known as the NGC 6340 group.

<span class="mw-page-title-main">NGC 3610</span> Elliptical galaxy in the constellation Ursa Major

NGC 3610 is an elliptical galaxy in the constellation Ursa Major. It was discovered on 8 April 1793 by German-British astronomer William Herschel. This galaxy is located at a distance of 106 million light-years (32.5 Mpc) from the Milky Way, and is receding with a galacto-centric radial velocity of 1,819 km/s.

<span class="mw-page-title-main">NGC 3862</span> Galaxy in the constellation Leo

NGC 3862 is an elliptical galaxy located 300 million light-years away in the constellation Leo. Discovered by astronomer William Herschel on April 27, 1785, NGC 3862 is an outlying member of the Leo Cluster.

<span class="mw-page-title-main">NGC 3311</span> Galaxy in the constellation Hydra

NGC 3311 is a super-giant elliptical galaxy located about 190 million light-years away in the constellation Hydra. The galaxy was discovered by astronomer John Herschel on March 30, 1835. NGC 3311 is the brightest member of the Hydra Cluster and forms a pair with NGC 3309 which along with NGC 3311, dominate the central region of the Hydra Cluster.

<span class="mw-page-title-main">NGC 708</span> Galaxy in the constellation Andromeda

NGC 708 is an elliptical galaxy located 240 million light-years away in the constellation Andromeda and was discovered by astronomer William Herschel on September 21, 1786. It is classified as a cD galaxy and is the brightest member of Abell 262. NGC 708 is a weak FR I radio galaxy and is also classified as a type 2 Seyfert galaxy.

<span class="mw-page-title-main">NGC 2865</span> Galaxy in the constellation Hydra

NGC 2865 is an isolated elliptical galaxy in the equatorial constellation of Hydra. The core region of the galaxy shows a kinematically distinct component showing indications of a recent accretion or merger event that led to a burst of star formation around the nucleus. Observational constraints require this to have occurred within the last 100–400 million years, with the merger most likely being an Sb or Sc-class spiral galaxy.

<span class="mw-page-title-main">NGC 536</span> Galaxy in the constellation Andromeda

NGC 536 is a barred spiral galaxy located in the constellation Andromeda. It is located at a distance of circa 200 million light-years from Earth, which, given its apparent dimensions, means that NGC 536 is about 180,000 light years across. It was discovered by William Herschel on September 13, 1784. It is a member of Hickson Compact Group 10, which also includes the galaxies NGC 529, NGC 531, and NGC 542. It belongs to the Perseus–Pisces Supercluster.

<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

NGC 1380 is a lenticular galaxy located in the constellation Fornax. It is located at a distance of circa 60 million light years from Earth, which, given its apparent dimensions, means that NGC 1380 is about 85,000 light years across. It was discovered by James Dunlop on September 2, 1826. It is a member of the Fornax Cluster.

<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

NGC 5846 is an elliptical galaxy located in the constellation Virgo. It is located at a distance of circa 90 million light years from Earth, which, given its apparent dimensions, means that NGC 5846 is about 110,000 light years across. It was discovered by William Herschel on February 24, 1786. It lies near 110 Virginis and is part of the Herschel 400 Catalogue. It is a member of the NGC 5846 Group of galaxies, itself one of the Virgo III Groups strung out to the east of the Virgo Supercluster of galaxies.

<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 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 4589</span> Galaxy in the constellation Draco

NGC 4589 is an elliptical galaxy located in the Draco constellation. It was discovered by German-British astronomer William Herschel on November 22, 1797. This galaxy lies at a distance of 73.0 million light-years (22.39 Mpc) from the Milky Way, and is receding with a heliocentric radial velocity of 2,002 km/s. It is known by its designations PGC 42139 or UGC 7797.

<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.

<span class="mw-page-title-main">NGC 7507</span> Elliptical galaxy in the constellation Sculptor

NGC 7507 is an elliptical galaxy located in the constellation Sculptor. It was discovered by the German-British astronomer William Herschel on October 30, 1783. The galaxy lies at an estimated distance of 80.1 million light-years (24.55 Mpc) from the Milky Way, and has an angular size of 2.0′ × 1.9′ in the near infrared. It is receding with a heliocentric radial velocity of 1,590 km/s.

<span class="mw-page-title-main">NGC 1373</span> Galaxy in the constellation Fornax

NGC 1373 is a dwarf elliptical galaxy located 61 million light years away in constellation of Fornax. The galaxy was discovered by astronomer John Herschel on November 29, 1837, and is a member of the Fornax Cluster. NGC 1373 is a host to a supermassive black hole with an estimated mass of 4.6 million solar masses.

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.{{cite journal}}: |last6= has generic name (help)
  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.
  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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