NGC 4214
| NGC4214 | |
|---|---|
 Optical and near-infrared image, taken using the Hubble's Wide Field Camera 3 (WFC3) | |
| Observation data (J2000epoch) | |
| Constellation | Canes Venatici |
| Right ascension | 12h15m39.2s[1] |
| Declination | +36° 19′ 37″[1] |
| Redshift | 291 ± 3 km/s[1] |
| Apparent magnitude(V) | 10.2[1] |
| Characteristics | |
| Type | IAB(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,UGC7278,[1]PGC39225[1] | |
NGC 4214is adwarfbarred irregular galaxylocated around 10 million light-years[2]away in theconstellationCanes Venatici.NGC 4214 is a member of theM94 Group.
Characteristics
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NGC 4214 is both larger and brighter than theSmall Magellanic Cloud[3]as well as astarburst galaxy,with the largest star-forming regions (NGC 4214-IandNGC 4214-II) in the galaxy's center. Of the two,NGC 4214-Icontains asuper star clusterrich inWolf-Rayet starsandNGC 4214-IIis younger (age less than 3 million years), including a number ofstar clustersandstellar 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*10.5and 1.5*106solar 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 it shows evidence of multiple episodes of star formation in its recent past: one around 400 million years ago, and another 1.5 billion years ago.[6]
Twosupernovaehave been observed in NGC 4214: SN 1954A (type Ib,mag. 9.8),[7]and SN 2010U (typeLBV,mag. 15.7).[8][9]
See also
[edit]- NGC 4236- a similar irregular galaxy
References
[edit]- ^abcdefgh"NASA/IPAC Extragalactic Database".Results for NGC 4214.Retrieved2007-03-30.
- ^"Galaxy NGC 4214: A star formation laboratory".ESA/Hubble Photo Release.ESA/Hubble.Retrieved12 May2011.
- ^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.
- ^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.
- ^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.S2CID36220968.
- ^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.S2CID229297953.
- ^Transient Name Server entry for SN 1954A.Retrieved 28 March 2023.
- ^Transient Name Server entry for SN 2010U.Retrieved 25 March 2023.
- ^Central Bureau for Astronomical Telegrams No. 2163.
External links
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Media related toNGC 4214at Wikimedia Commons- Hubble Heritage site:Detailed information on the HST picture of 4214
- Galaxy NGC 4214: A star formation laboratoryESA/Hubble photo release
