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Messier 89

January 01, 1970

For other uses, see M89 (disambiguation).

Messier 89 (M89 for short, also known as NGC 4552) is an elliptical galaxy in the constellation Virgo. It was discovered by Charles Messier on March 18, 1781. M89 is a member of the Virgo Cluster of galaxies.[3]

Messier 89[1]
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension12h 35m 39.8s[2]
Declination+12° 33′ 23″[2]
Redshift0.001134±0.000014[2]
Heliocentric radial velocity340±4 km/s[2]
Galactocentric velocity290±5 km/s[2]
Distance50 ± 3 Mly (15.33 ± 0.92 Mpc)
Apparent magnitude (V)9.8[3]
Characteristics
TypeE,[2] LINER,[2] HIISy2[2]
Apparent size (V)5.1 × 4.7 moa[2]
Other designations
NGC 4552,[2] UGC 7760,[2] PGC 41968[2]
References: SIMBAD: Search M89

Features edit

Current observations allow the possibility that M89 may be nearly perfectly spherical. Distinct flattening as ellipsoids is found in all easily measurable comparators up to a few times of its distance. The alternative explanation is that it is an ellipsoid oriented so that it appears spherical to an observer on Earth.

The galaxy features a surrounding structure of gas and dust, extending up to 150,000 light-years and jets of heated particles up to two-thirds of that.[4] This indicates that it may have once been an active quasar or radio galaxy.[4] M89 has an extensive and complex system of surrounding shells and plumes, indicating that it has seen one or several notable mergers.[5]

Chandra studies in the wavelength of the X-Rays show two ring-like structures of hot gas in M89's nucleus, suggesting an outburst there 1 to 2 million years ago[6] as well as ram-pressure stripping acting on the galaxy as it moves through Virgo's intracluster medium.[7] The supermassive black hole at the core has a mass of (4.8±0.8)×108 M☉.[8]

M89 also has a large array of globular clusters. A 2006 survey estimates that there are 2,000 ± 700 of these within 25′. This compares to 150 to 200 of these thought (among which many proven) to surround the Milky Way.[9]

Gallery edit

See also edit

References edit

  1. ^ J. L. Tonry; A. Dressler; J. P. Blakeslee; E. A. Ajhar; et al. (2001). "The SBF Survey of Galaxy Distances. IV. SBF Magnitudes, Colors, and Distances". Astrophysical Journal. 546 (2): 681–693. arXiv:astro-ph/0011223. Bibcode:2001ApJ...546..681T. doi:10.1086/318301. S2CID 17628238.
  2. ^ a b c d e f g h i j k l "NASA/IPAC Extragalactic Database". Results for NGC 4552. Retrieved 2006-10-24.
  3. ^ a b "Elliptical Galaxy M89 @ SEDS Messier pages".
  4. ^ a b Messier Objects 81-90 @ Sea and Sky
  5. ^ Janowiecki, Steven; Mihos, J. Christopher; Harding, Paul; Feldmeier, John J.; et al. (2010). "Diffuse Tidal Structures in the Halos of Virgo Ellipticals". The Astrophysical Journal. 715 (2): 972–985. arXiv:1004.1473. Bibcode:2010ApJ...715..972J. doi:10.1088/0004-637X/715/2/972. S2CID 119196248.
  6. ^ Machacek, M.; Nulsen, P. E. J.; Jones, C.; Forman, W. R. (2014). "Chandra Observations of Nuclear Outflows in the Elliptical Galaxy NGC 4552 in the Virgo Cluster". The Astrophysical Journal. 648 (2): 947–955. arXiv:astro-ph/0604406. Bibcode:2006ApJ...648..947M. doi:10.1086/505963. S2CID 14060525.
  7. ^ Machacek, M.; Jones, C.; Forman, W. R.; Nulsen, P. (2006). "Chandra Observations of Gas Stripping in the Elliptical Galaxy NGC 4552 in the Virgo Cluster". The Astrophysical Journal. 644 (1): 155–166. arXiv:astro-ph/0508588. Bibcode:2006ApJ...644..155M. doi:10.1086/503350. S2CID 17223014.
  8. ^ Graham, Alister W. (November 2008), "Populating the Galaxy Velocity Dispersion - Supermassive Black Hole Mass Diagram: A Catalogue of (Mbh, σ) Values", Publications of the Astronomical Society of Australia, 25 (4): 167–175, arXiv:0807.2549, Bibcode:2008PASA...25..167G, doi:10.1071/AS08013, S2CID 89905.
  9. ^ Tamura, Naoyuki; Sharples, Ray M.; Arimoto, Nobuo; Onodera, Masato; et al. (2006). "A Subaru/Suprime-Cam wide-field survey of globular cluster populations around M87 - I. Observation, data analysis and luminosity function". Monthly Notices of the Royal Astronomical Society. 373 (2): 588–600. arXiv:astro-ph/0609067. Bibcode:2006MNRAS.373..588T. doi:10.1111/j.1365-2966.2006.11067.x. S2CID 15127905.

External links edit

  •   Media related to Messier 89 at Wikimedia Commons
  • SEDS: Messier Object 89
  • Messier 89 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

January 01, 1970
messier, other, uses, disambiguation, short, also, known, 4552, elliptical, galaxy, constellation, virgo, discovered, charles, messier, march, 1781, member, virgo, cluster, galaxies, hubble, space, telescope, observation, data, j2000, epoch, constellationvirgo. For other uses see M89 disambiguation Messier 89 M89 for short also known as NGC 4552 is an elliptical galaxy in the constellation Virgo It was discovered by Charles Messier on March 18 1781 M89 is a member of the Virgo Cluster of galaxies 3 Messier 89 1 M89 by Hubble Space Telescope Observation data J2000 epoch ConstellationVirgoRight ascension12h 35m 39 8s 2 Declination 12 33 23 2 Redshift0 001134 0 000014 2 Heliocentric radial velocity340 4 km s 2 Galactocentric velocity290 5 km s 2 Distance50 3 Mly 15 33 0 92 Mpc Apparent magnitude V 9 8 3 CharacteristicsTypeE 2 LINER 2 HIISy2 2 Apparent size V 5 1 4 7 moa 2 Other designationsNGC 4552 2 UGC 7760 2 PGC 41968 2 References SIMBAD Search M89 Contents 1 Features 2 Gallery 3 See also 4 References 5 External linksFeatures editCurrent observations allow the possibility that M89 may be nearly perfectly spherical Distinct flattening as ellipsoids is found in all easily measurable comparators up to a few times of its distance The alternative explanation is that it is an ellipsoid oriented so that it appears spherical to an observer on Earth The galaxy features a surrounding structure of gas and dust extending up to 150 000 light years and jets of heated particles up to two thirds of that 4 This indicates that it may have once been an active quasar or radio galaxy 4 M89 has an extensive and complex system of surrounding shells and plumes indicating that it has seen one or several notable mergers 5 Chandra studies in the wavelength of the X Rays show two ring like structures of hot gas in M89 s nucleus suggesting an outburst there 1 to 2 million years ago 6 as well as ram pressure stripping acting on the galaxy as it moves through Virgo s intracluster medium 7 The supermassive black hole at the core has a mass of 4 8 0 8 108 M 8 M89 also has a large array of globular clusters A 2006 survey estimates that there are 2 000 700 of these within 25 This compares to 150 to 200 of these thought among which many proven to surround the Milky Way 9 Gallery edit nbsp Messier 89 by the Sloan Digital Sky Survey nbsp Map of M89 nbsp HST image of M89See also editList of Messier objectsReferences edit J L Tonry A Dressler J P Blakeslee E A Ajhar et al 2001 The SBF Survey of Galaxy Distances IV SBF Magnitudes Colors and Distances Astrophysical Journal 546 2 681 693 arXiv astro ph 0011223 Bibcode 2001ApJ 546 681T doi 10 1086 318301 S2CID 17628238 a b c d e f g h i j k l NASA IPAC Extragalactic Database Results for NGC 4552 Retrieved 2006 10 24 a b Elliptical Galaxy M89 SEDS Messier pages a b Messier Objects 81 90 Sea and Sky Janowiecki Steven Mihos J Christopher Harding Paul Feldmeier John J et al 2010 Diffuse Tidal Structures in the Halos of Virgo Ellipticals The Astrophysical Journal 715 2 972 985 arXiv 1004 1473 Bibcode 2010ApJ 715 972J doi 10 1088 0004 637X 715 2 972 S2CID 119196248 Machacek M Nulsen P E J Jones C Forman W R 2014 Chandra Observations of Nuclear Outflows in the Elliptical Galaxy NGC 4552 in the Virgo Cluster The Astrophysical Journal 648 2 947 955 arXiv astro ph 0604406 Bibcode 2006ApJ 648 947M doi 10 1086 505963 S2CID 14060525 Machacek M Jones C Forman W R Nulsen P 2006 Chandra Observations of Gas Stripping in the Elliptical Galaxy NGC 4552 in the Virgo Cluster The Astrophysical Journal 644 1 155 166 arXiv astro ph 0508588 Bibcode 2006ApJ 644 155M doi 10 1086 503350 S2CID 17223014 Graham Alister W November 2008 Populating the Galaxy Velocity Dispersion Supermassive Black Hole Mass Diagram A Catalogue of Mbh s Values Publications of the Astronomical Society of Australia 25 4 167 175 arXiv 0807 2549 Bibcode 2008PASA 25 167G doi 10 1071 AS08013 S2CID 89905 Tamura Naoyuki Sharples Ray M Arimoto Nobuo Onodera Masato et al 2006 A Subaru Suprime Cam wide field survey of globular cluster populations around M87 I Observation data analysis and luminosity function Monthly Notices of the Royal Astronomical Society 373 2 588 600 arXiv astro ph 0609067 Bibcode 2006MNRAS 373 588T doi 10 1111 j 1365 2966 2006 11067 x S2CID 15127905 External links edit nbsp Media related to Messier 89 at Wikimedia Commons SEDS Messier Object 89 Messier 89 on WikiSky DSS2 SDSS GALEX IRAS Hydrogen a X Ray Astrophoto Sky Map Articles and images Portals nbsp Astronomy nbsp Stars nbsp Outer space Retrieved from https en wikipedia org w index php title Messier 89 amp oldid 1219689926, wikipedia, wiki, book, books, library,

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