NGC 4458

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NGC 4458
NGC4458 - SDSS DR14.jpg
The elliptical galaxy NGC 4458 as imaged by the SDSS.
Observation data (J2000 epoch)
Constellation Virgo
Right ascension 12h 28m 57.5s [1]
Declination 13° 14′ 31″ [1]
Redshift 0.002258/677 km/s [1]
Distance 54,801,600 ly
Group or cluster Virgo Cluster
Apparent magnitude  (V)12.93 [1]
Characteristics
Type E0 [1]
Mass ~1.07×1010 [2]   M☉
Size~ 29,000 ly (estimated) [1]
Apparent size  (V)1.7 x 1.6 [1]
Other designations
CGCG 70-114, MCG 2-32-82, PGC 41095, UGC 7610, VCC 1146 [1]

NGC 4458 is an elliptical galaxy located about 54 million light-years away [3] [4] in the constellation of Virgo. [5] It was discovered by astronomer William Herschel on April 12, 1784. [6] NGC 4458 is a member of Markarian's Chain which is part of the Virgo Cluster. [7] It is in a pair with the galaxy NGC 4461. [8] NGC 4458 and NGC 4461 are interacting with each other. [9]

Contents

NGC 4458 may have a supermassive black hole with an estimated mass of 200 million Suns (2×108 M☉). [2]

Nuclear disk

NGC 4458 has an edge-on nuclear disk which is estimated to be about 6 billion years old. [10] The disk likely formed from the merger of a gas-rich galaxy and has been found to have "similar properties to the decoupled cores of bright ellipticals". [11] [12]

Counter-rotating core

Using Hubble images, it has been determined that NGC 4458 has a counter-rotating core. [9]

Metallicity

NGC 4458 has a low metal content but has an overabundance of the element iron. [9]

See also

References

  1. 1 2 3 4 5 6 7 8 "NASA/IPAC Extragalactic Database". Results for NGC 4458. Retrieved 2017-08-06.
  2. 1 2 Pechetti, Renuka; Seth, Anil; Cappellari, Michele; McDermid, Richard; Brok, Mark den; Mieske, Steffen; Strader, Jay (2017-11-13). "Detection of Enhanced Central Mass-to-light Ratios in Low-mass Early-type Galaxies: Evidence for Black Holes?". The Astrophysical Journal. 850 (1): 15. arXiv: 1709.09172 . Bibcode:2017ApJ...850...15P. doi: 10.3847/1538-4357/aa9021 . ISSN   1538-4357. S2CID   119357906.
  3. ↑ Tomita, Akihiko; Aoki, Kentaro; Watanabe, Masaru; Takata, Tadafumi; Ichikawa, Shin-ichi (29 March 2000). "The Central Gas Systems of Early-Type Galaxies Traced by Dust Feature: Based on the HST WFPC2 Archival Images". The Astronomical Journal. 120 (1): 18. arXiv: astro-ph/0003431 . Bibcode:2000AJ....120..123T. CiteSeerX   10.1.1.258.1582 . doi:10.1086/301440. S2CID   9684945.
  4. ↑ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-08-09.
  5. ↑ "NGC 4458 in the Virgo cluster of galaxies". www.spacetelescope.org. Retrieved 2017-08-06.
  6. ↑ "New General Catalog Objects: NGC 4450 - 4499". cseligman.com. Retrieved 2017-08-01.
  7. ↑ Markarian, B.E. (December 1961). "Physical chain of galaxies in the Virgo cluster and its dynamic instability" (PDF). Astronomical Journal. 66: 555–557. Bibcode:1961AJ.....66..555M.
  8. ↑ "NGC 4458". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2017-08-09.
  9. 1 2 3 Morelli, L.; Halliday, C.; Corsini, E. M.; Pizzella, A.; Thomas, D.; Saglia, R. P.; Davies, R. L.; Bender, R.; Birkinshaw, M.; Bertola, F. (19 July 2004). "Nuclear stellar discs in low-luminosity elliptical galaxies: NGC 4458 and 4478" (PDF). Monthly Notices of the Royal Astronomical Society. 354 (3): 753–762. arXiv: astro-ph/0408084 . Bibcode:2004MNRAS.354..753M. doi: 10.1111/j.1365-2966.2004.08236.x . S2CID   13933949.
  10. ↑ Sarzi, M.; Ledo, H. R.; Coccato, L.; Corsini, E. M.; Dotti, M.; Khochfar, S.; Maraston, C.; Morelli, L.; Pizzella, A. (13 January 2016). "Nuclear discs as clocks for the assembly history of early-type galaxies: the case of NGC 4458". Monthly Notices of the Royal Astronomical Society. 457 (2): 1804–1812. arXiv: 1601.03292 . Bibcode:2016MNRAS.457.1804S. doi: 10.1093/mnras/stw099 . S2CID   55627361.
  11. ↑ Morelli, L.; Cesetti, M.; Corsini, E. M.; Pizzella, A.; Bonta`, E. Dalla; Sarzi, M.; Bertola, F. (20 May 2010). "Multiband photometric decomposition of nuclear stellar disks". Astronomy & Astrophysics. 518: A32. arXiv: 1004.2190 . Bibcode:2010A&A...518A..32M. doi:10.1051/0004-6361/201014285. S2CID   16619922.
  12. ↑ L. Morelli, C. Halliday, E. M. Corsini, A. Pizzella, D. Thomas, R. P. Saglia, R. L. Davies, R. Bender, M. Birkinshaw, F. Bertola, Nuclear stellar discs in low-luminosity elliptical galaxies: NGC 4458 and 4478, Monthly Notices of the Royal Astronomical Society, Volume 354, Issue 3, November 2004, Pages 753–762, doi : 10.1111/j.1365-2966.2004.08236.x


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