Astronomy:NGC 4458
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Short description: Galaxy in the Virgo constellation
| NGC 4458 | |
|---|---|
 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]
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
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 "NASA/IPAC Extragalactic Database". Results for NGC 4458. http://nedwww.ipac.caltech.edu/.
- ↑ 2.0 2.1 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. doi:10.3847/1538-4357/aa9021. ISSN 1538-4357. Bibcode: 2017ApJ...850...15P. http://stacks.iop.org/0004-637X/850/i=1/a=15?key=crossref.0e2735daa49f56f0600addc374ec2cd7.
- ↑ 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. doi:10.1086/301440. Bibcode: 2000AJ....120..123T.
- ↑ "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+4458&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
- ↑ "NGC 4458 in the Virgo cluster of galaxies" (in en-GB). http://www.spacetelescope.org/images/heic0815c/.
- ↑ "New General Catalog Objects: NGC 4450 - 4499" (in en-US). http://cseligman.com/text/atlas/ngc44a.htm#4457.
- ↑ Markarian, B.E. (December 1961). "Physical chain of galaxies in the Virgo cluster and its dynamic instability". Astronomical Journal 66: 555–557. Bibcode: 1961AJ.....66..555M. http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1961AJ.....66..555M&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf.
- ↑ "NGC 4458". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+4458.
- ↑ 9.0 9.1 9.2 Morelli, L.; Halliday, C.; Corsini, E. M.; Pizzella, A.; Thomas, D.; Saglia, R. P.; Davies, R. L.; Bender, R. et al. (19 July 2004). "Nuclear stellar discs in low-luminosity elliptical galaxies: NGC 4458 and 4478". Monthly Notices of the Royal Astronomical Society 354 (3): 753–762. doi:10.1111/j.1365-2966.2004.08236.x. Bibcode: 2004MNRAS.354..753M. https://oup.silverchair-cdn.com/oup/backfile/Content_public/Journal/mnras/354/3/10.1111_j.1365-2966.2004.08236.x/1/354-3-753.pdf?Expires=1502066874&Signature=GEPaETFr7KJ2NEqvd56FxJ4CiTHx2oftLEx5o-2u57C-TWJ4rDu3ByNpqfe2jVcMMud4JvnYDg4osPwLrFH7D5SpX4Lh1blulRD0Tls8qN6YcStNvqwwcz2nqj-mX4W6LEAmkG~5j8x4r31Tu0tcC7d7iKIYJq2N-g4IT5pXmtrxPmRg8G1STq6B7wajBUw44hWpjXMm7lGX9SY4~DByRycIEHq9YJ1pAZs~7xOu60b6cX59svP32kRaPTZKbD4SkYTFcHfVzq8g1-Z4v6~KIXRrO6UYqJfZovjGM~FMt7MSAw4tRG1hVE6GQTUO8pLkkLgyb6mdlAhDiVpP7TZBTg__&Key-Pair-Id=APKAIUCZBIA4LVPAVW3Q.
- ↑ Sarzi, M.; Ledo, H. R.; Coccato, L.; Corsini, E. M.; Dotti, M.; Khochfar, S.; Maraston, C.; Morelli, L. et al. (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. doi:10.1093/mnras/stw099. Bibcode: 2016MNRAS.457.1804S. https://www.researchgate.net/publication/290527248.
- ↑ 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. doi:10.1051/0004-6361/201014285. Bibcode: 2010A&A...518A..32M.
- ↑ 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, https://doi.org/10.1111/j.1365-2966.2004.08236.x}
External links
- NGC 4458 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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