NGC 4458

NGC 4458

The elliptical galaxy NGC 4458 as imaged by the HST.
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]
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[2][3] in the constellation of Virgo.[4] It was discovered by astronomer William Herschel on April 12, 1784.[5] NGC 4458 is a member of Markarian's Chain which is part of the Virgo Cluster.[6] It is in a pair with the galaxy NGC 4461.[7] NGC 4458 and NGC 4461 are both Interacting with each other.[8]

Nuclear disk

NGC 4458 has an edge-on nuclear disk which is estimated to be about 6 billion years old.[9] The disk likely formed from the merger of a gas-rich galaxy.[10]

Counter-rotating core

In NGC 4458, it has been indicated using Hubble Images that it has a counter-rotating core.[8]

Metallicity

NGC 4458 has a low metal content but has an overabundance of the element Iron.[8]

See also

References

  1. 1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database". Results for NGC 4458. Retrieved 2017-08-06.
  2. ↑ 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: 18.
  3. ↑ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-08-09.
  4. ↑ information@eso.org. "NGC 4458 in the Virgo cluster of galaxies". www.spacetelescope.org. Retrieved 2017-08-06.
  5. ↑ "New General Catalog Objects: NGC 4450 - 4499". cseligman.com. Retrieved 2017-08-01.
  6. ↑ 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.
  7. ↑ "NGC 4458". simbad.u-strasbg.fr. Retrieved 2017-08-09.
  8. 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: 753–762.
  9. ↑ 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. 000: 1–10.
  10. ↑ 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" (PDF). Astronomy & Astrophysics: 1–10.
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