NGC 3585

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NGC 3585
NGC 3585 PanSTARRS1 i.r.g.jpg
NGC 3585 by PanSTARRS
Observation data (J2000 epoch)
Constellation Hydra
Right ascension 11h 13m 17.1s [1]
Declination −26° 45′ 17″ [1]
Redshift 0.004783 ± 0.000040 [1]
Helio radial velocity 1,434 ± 12 km/s [1]
Distance 56 ± 15 Mly (17.3 ± 4.5 Mpc) [1]
Apparent magnitude  (V)9.9 [2]
Characteristics
Type E7/S0 [1]
Apparent size  (V)4.7′ × 2.6′
Other designations
ESO 502- G 025, AM 1110-262, MCG -04-27-004, PGC 34160 [1]

NGC 3585 is an elliptical or a lenticular galaxy located in the constellation Hydra. It is located at a distance of circa 60 million light-years from Earth, which, given its apparent dimensions, means that NGC 3585 is about 80,000 light years across. It was discovered by William Herschel on December 9, 1784. [3]

NGC 3585 features a red discy region in the core with a semi-major axis of circa 45 arcseconds, probably associated with diffuse dust. There are nearly 130 globular cluster candidates in the galaxy, with the total number of globular clusters estimated to be nearly 550. This number is quite low, but it is typical for field elliptical galaxies. Based on luminosity turnover of the globular clusters, it is suspected that there is a subpopulation of younger clusters. [4] The outer isophotes of the galaxy are asymmetrical, maybe due to a tidal disruption. [5]

In the centre of NGC 3585 lies a supermassive black hole whose mass is estimated to be 108.4  M☉ based on the tidal disruption rate [6] or 108.53 ± 0.122M☉ based on the observation of the circumnuclear ring with very-long-baseline interferometry. [7] Based on observations by the Hubble Space Telescope to determine the stellar velocity dispersion at the core, the mass of the hole was estimated to be between 280 and 490 million M☉ by using the M–sigma relation. [8]

NGC 3585 is the most prominent member of a loose galaxy group known as the NGC 3585 group. Other members of the group are the spiral galaxies UGCA 226, ESO 502- G 016, and UGCA 230. [9] [10]

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<span class="mw-page-title-main">NGC 3923</span> Elliptical galaxy in the constellation Hydra

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

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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.

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<span class="mw-page-title-main">NGC 3640</span> Elliptical galaxy in the constellation Leo

NGC 3640 is an elliptical galaxy located in the constellation Leo. It is located at a distance of circa 75 million light years from Earth, which, given its apparent dimensions, means that NGC 3640 is about 90,000 light years across. It was discovered by William Herschel on February 23, 1784. It is a member of the NGC 3640 Group of galaxies, which is a member of the Leo II Groups, a series of galaxies and galaxy clusters strung out from the right edge of the Virgo Supercluster.

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

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

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

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<span class="mw-page-title-main">NGC 4318</span> Galaxy in the constellation Virgo

NGC 4318 is a small lenticular galaxy located about 72 million light-years away in the constellation Virgo. It was discovered by astronomer John Herschel on January 18, 1828. NGC 4318 is a member of the Virgo W′ group, a group of galaxies in the background of the Virgo Cluster that is centered on the giant elliptical galaxy NGC 4365.

<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 "NASA/IPAC Extragalactic Database". Results for NGC 3585. Retrieved 2016-01-18.
  2. ↑ "Revised NGC Data for NGC 3585". spider.seds.org. Retrieved 25 November 2018.
  3. ↑ Seligman, Courtney. "NGC 3585". Celestial Atlas. Retrieved 19 November 2018.
  4. ↑ Lane, R. R.; Salinas, R.; Richtler, T. (16 January 2013). "Isolated ellipticals and their globular cluster systems". Astronomy & Astrophysics. 549: A148. arXiv: 1212.1451 . doi:10.1051/0004-6361/201220231. S2CID   118433690.
  5. ↑ Tal, Tomer; van Dokkum, Pieter G.; Nelan, Jenica; Bezanson, Rachel (1 November 2009). "The Frequence of Tidal Features Associated with Nearby Luminous Elliptical Galaxies from a Statistically Complete Sample". The Astronomical Journal. 138 (5): 1417–1427. arXiv: 0908.1382 . Bibcode:2009AJ....138.1417T. doi:10.1088/0004-6256/138/5/1417. S2CID   19104100.
  6. ↑ 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.
  7. ↑ Johannsen, Tim; Psaltis, Dimitrios; Gillessen, Stefan; Marrone, Daniel P.; Özel, Feryal; Doeleman, Sheperd S.; Fish, Vincent L. (10 October 2012). "Masses of Nearby Supermassive Black Holes with Very Long Baseline Interferometry". The Astrophysical Journal. 758 (1): 30. arXiv: 1201.0758 . Bibcode:2012ApJ...758...30J. doi:10.1088/0004-637X/758/1/30. S2CID   1129745.
  8. ↑ Gültekin, Kayhan; Richstone, Douglas O.; Gebhardt, Karl; Lauer, Tod R.; Pinkney, Jason; Aller, M. C.; Bender, Ralf; Dressler, Alan; Faber, S. M.; Filippenko, Alexei V.; Green, Richard; Ho, Luis C.; Kormendy, John; Siopis, Christos (20 April 2009). "A Quintet of Black Hole Mass Determinations". The Astrophysical Journal. 695 (2): 1577–1590. arXiv: 0901.4162 . Bibcode:2009ApJ...695.1577G. doi:10.1088/0004-637X/695/2/1577. S2CID   14365610.
  9. ↑ 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 3 January 2019.
  10. ↑ Garcia, A. M. (1993). "General study of group membership. II – Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100 (1): 47–90. Bibcode:1993A&AS..100...47G. ISSN   0365-0138.


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