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NGC 4214 is a dwarf barred irregular galaxy located around 10 million light-years[2] away in the constellation Canes Venatici. NGC 4214 is a member of the M94 Group.

NGC 4214
Optical and near-infrared image, taken using the Hubble's Wide Field Camera 3 (WFC3)
Observation data (J2000 epoch)
ConstellationCanes Venatici
Right ascension12h 15m 39.2s[1]
Declination+36° 19′ 37″[1]
Redshift291 ± 3 km/s[1]
Apparent magnitude (V)10.2[1]
Characteristics
TypeIAB(s)m[1]
Apparent size (V)8′.4 × 6′.6[1]
Other designations
NGC 4228, CGCG 187-32, IRAS 12131+3636, KUG 1213+366, MCG 6-27-42, UGC 7278,[1] PGC 39225[1]

Characteristics


Amateur image of NGC 4214.
Amateur image of NGC 4214.

NGC 4214 is both larger and brighter than the Small Magellanic Cloud[3] as well as a starburst galaxy, with the largest star-forming regions (NGC 4214-I and NGC 4214-II) in the galaxy's center. Of the two, NGC 4214-I contains a super star cluster rich in Wolf-Rayet stars and NGC 4214-II is younger (age less than 3 million years), including a number of star clusters and stellar associations.[4]

NGC 4214 also has two older super star clusters, both with an age of 200 million years and respective masses of 2.6*10.5 and 1.5*106 solar masses.[5]

Two satellites are known to exist around the vicinity of NGC 4214. One is DDO 113, which has an absolute V-band magnitude of −12.2. It stopped star formation around 1 billion years ago. Another, more recently discovered object is MADCASH-2, officially named MADCASH J121007+352635-dw. The name refers to the MADCASH (Magellanic Analog Dwarf Companions and Stellar Halos) project. It is similar to typical ultra-faint dwarf galaxies, with an absolute V-band magnitude of −9.15, except in that shows evidence of multiple episodes star formation in its recent past: one around 400 million years ago, and another 1.5 billion years ago.[6]


See also



References


  1. "NASA/IPAC Extragalactic Database". Results for NGC 4214. Retrieved 2007-03-30.
  2. "Galaxy NGC 4214: A star formation laboratory". ESA/Hubble Photo Release. ESA/Hubble. Retrieved 12 May 2011.
  3. Karachentsev, Igor D.; Karachentseva, Valentina E.; Huchtmeier, Walter K.; Makarov, Dmitry I. (2003). "A Catalog of Neighboring Galaxies". The Astronomical Journal. 127 (4): 2031–2068. Bibcode:2004AJ....127.2031K. doi:10.1086/382905.
  4. Ubeda, L.; Maíz-Apellániz, J.; MacKenty, J. W. (2004). H.J.G.L.M. Lamers; L.J. Smith; A. Nota (eds.). "Massive Young Star Clusters in NGC 4214". The Formation and Evolution of Massive Young Star Clusters, ASP Conference Series. 322: 221. Bibcode:2004ASPC..322..221U.
  5. Larsen, Søren S.; Brodie, Jean P.; Hunter, Deidre A. (2004). "Dynamical Mass Estimates for Five Young Massive Stellar Clusters". The Astronomical Journal. 128 (5): 2295–2305. arXiv:astro-ph/0407373. Bibcode:2004AJ....128.2295L. doi:10.1086/424538. S2CID 36220968.
  6. Carlin, Jeffrey L.; Mutlu-Pakdil, Burçin; Crnojević, Denija; Garling, Christopher T.; Karunakaran, Ananthan; Peter, Annika H. G.; Tollerud, Erik; Forbes, Duncan A.; Hargis, Jonathan R.; Lim, Sungsoon; Romanowsky, Aaron J.; Sand, David J.; Spekkens, Kristine; Strader, Jay (2021). "Hubble Space Telescope Observations of Two Faint Dwarf Satellites of Nearby LMC Analogs from MADCASH". The Astrophysical Journal. 909 (2): 211. arXiv:2012.09174. Bibcode:2021ApJ...909..211C. doi:10.3847/1538-4357/abe040. S2CID 229297953.




На других языках

[de] NGC 4214

NGC 4214 = NGC 4228 ist eine irreguläre Galaxie mit ausgedehnten Sternentstehungsgebieten vom Hubble-Typ IBm im Sternbild Jagdhunde am Nordsternhimmel. Sie ist schätzungsweise 14 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 30.000 Lichtjahren. Im selben Himmelsareal befinden sich die Galaxien NGC 4163 und NGC 4190.
- [en] NGC 4214

[es] NGC 4214

NGC 4214 es una galaxia irregular y una galaxia de wolf rayet en la constelación de Canes Venatici visible con telescopios de aficionado, y situada a una distancia de entre 2,7 y 2,94 megaparsecs (alrededor de 9,5 millones de años luz) de la Vía Láctea.[1][2]

[ru] NGC 4214

NGC 4214 (другие обозначения — NGC 4228, ZWG 187.32, UGC 7278, KUG 1213+366, MCG 6-27-42, IRAS12131+3636, PGC 39225) — галактика в созвездии Гончие Псы.


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