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| image =Carina Dwarf Galaxy.jpg |
| image =Carina Dwarf Galaxy.jpg |
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| image_size =300px |
| image_size =300px |
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| caption = Carina Dwarf Spheroidal Galaxy image made using observations from the Wide Field Imager on the MPG/ESO 2.2-metre telescope at [[La Silla Observatory|La Silla]], and from the Victor M. Blanco 4-metre telescope at the Cerro Tololo Inter-American Observatory |
| caption = Carina Dwarf Spheroidal Galaxy image made using observations from the Wide Field Imager on the MPG/ESO 2.2-metre telescope at [[La Silla Observatory|La Silla]], and from the Victor M. Blanco 4-metre telescope at the Cerro Tololo Inter-American Observatory<ref>{{cite web|url=https://www.eso.org/public/images/potw1126a|work=ESO Picture of the Week |title=Hiding in Plain Sight — the elusive Carina Dwarf Galaxy|publisher=European Southern Observatory|accessdate=28 June 2011}}</ref> Credit: [[ESO]]/G. Bono & CTIO |
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| name = Carina Dwarf Spheroidal Galaxy |
| name = Carina Dwarf Spheroidal Galaxy |
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| epoch = [[ |
| epoch = [[J2000]] |
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| type = E3<ref name="ned">{{cite web |
| type = E3<ref name="ned">{{cite web |
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| title=NASA/IPAC Extragalactic Database |
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| work=Results for Carina Dwarf Spheroidal |
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| url=http://nedwww.ipac.caltech.edu |
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| accessdate=2006-11-29 }}</ref> |
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| ra = {{RA|06|41|36.7}}<ref name="ned" |
| ra = {{RA|06|41|36.7}}<ref name="ned"/> |
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| dec = {{DEC|-50|57|58}}<ref name="ned" |
| dec = {{DEC|-50|57|58}}<ref name="ned"/> |
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| dist_ly = |
| dist_ly = 330 ± 30 [[light-year|kly]] (100 ± 10 [[kiloparsec|kpc]])<ref name="karachentsevetal2004">{{cite journal |
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|author1=I. D. Karachentsev |author2=V. E. Karachentseva |author3=W. K. Hutchmeier |author4=D. I. Makarov | title=A Catalog of Neighboring Galaxies |
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| journal=Astronomical Journal |
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| date=2004 |
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| volume=127 |
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| issue=4 |
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| pages=2031–2068 |
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| bibcode=2004AJ....127.2031K |
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| doi=10.1086/382905| doi-access=free |
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}}</ref><ref name="Karachentsevetal2006">{{cite journal |
}}</ref><ref name="Karachentsevetal2006">{{cite journal |
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|author1=Karachentsev, I. D. |author2=Kashibadze, O. G. | title=Masses of the local group and of the M81 group estimated from distortions in the local velocity field |
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| journal=Astrophysics |
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| date=2006 |
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| volume=49 |
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| issue=1 |
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| pages=3–18 |
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| bibcode=2006Ap.....49....3K |
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| doi=10.1007/s10511-006-0002-6 }}</ref> |
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| z = 230 ± 60 km/[[second|s]]<ref name="ned" |
| z = 230 ± 60 [[km]]/[[second|s]]<ref name="ned"/> |
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| appmag_v = 11.3B<ref name="ned" |
| appmag_v = 11.3B<ref name="ned"/> |
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| size_v = |
| size_v = 23′.4 × 15′.5<ref name="ned"/> |
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| mass = 1.51-1.69 × 10<sup>6</sup><ref name="Santana2016">{{cite journal |
| mass = 1.51-1.69 × 10<sup>6</sup><ref name="Santana2016">{{cite journal |
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| author1= F. A. Santana | author2= R. R. Munoz |
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| author3= T. J. L. de Boer | author4= J. D. Simon |
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| author5= M. Geha | author6= P. Cote | author7= A. E. Guzman |
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| author8= P. Stetson | author9= S. G. Djorgovski |
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| title=A MegaCam Survey of Outer Halo Satellites. VI. The Spatially Resolved Star-formation History of the Carina Dwarf Spheroidal Galaxy |
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| journal=Astrophysical Journal |
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| doi=10.3847/0004-637X/829/2/86| arxiv= 1607.05312| bibcode= 2016ApJ...829...86S}}</ref> |
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| constellation name = [[Carina (constellation)|Carina]] |
| constellation name = [[Carina (constellation)|Carina]] |
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| notes = - |
| notes = - |
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| names = Carina Dwarf,<ref name="ned" |
| names = Carina Dwarf,<ref name="ned"/> [[Principal Galaxies Catalogue|PGC]] 19441,<ref name="ned"/> ESO 206-G20 |
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}} |
}} |
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The '''Carina Dwarf Spheroidal Galaxy''' is a [[dwarf galaxy]] in the [[Carina (constellation)|Carina]] [[constellation]]. |
The '''Carina Dwarf Spheroidal Galaxy''' is a [[dwarf galaxy]] in the [[Carina (constellation)|Carina]] [[constellation]]. It was discovered in 1977 with the [[UK Schmidt Telescope]] by Cannon et al.<ref>{{cite web |
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| url=http://spider.seds.org/spider/LG/car_dw.html |
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| title=Carina Dwarf |
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|author1=Hartmut Frommert |author2=Christine Kronberg | website=SEDS |
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| accessdate=2015-10-27 |
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}}</ref><ref>{{cite journal|author=R. D. Cannon|author2=T. G. Hawarden|author3=S. B. Tritton|title=A new Sculptor-type dwarf elliptical galaxy in Carina|journal=[[Monthly Notices of the Royal Astronomical Society]]|date=1977|volume=180|pages=81–82|bibcode=1977MNRAS.180P..81C|doi=10.1093/mnras/180.1.81p |doi-access=free}}</ref> The Carina Dwarf Spheroidal galaxy is a [[satellite galaxy]] of the Milky Way and is receding from it at 230 km/s.<ref name="ned" |
}}</ref><ref>{{cite journal|author=R. D. Cannon|author2=T. G. Hawarden|author3=S. B. Tritton|title=A new Sculptor-type dwarf elliptical galaxy in Carina|journal=[[Monthly Notices of the Royal Astronomical Society]]|date=1977|volume=180|pages=81–82|bibcode=1977MNRAS.180P..81C|doi=10.1093/mnras/180.1.81p |doi-access=free}}</ref> The Carina Dwarf Spheroidal galaxy is a [[satellite galaxy]] of the Milky Way and is receding from it at 230 km/s.<ref name="ned"/> The diameter of the galaxy is about 1,600 [[light-year]]s, which is 75 times smaller than the Milky Way.<ref>{{cite journal |author=Steve Phillipps |title=Small galaxies are growing smaller |journal=Astronomy & Geophysics |volume=45 |issue=6 |page=6.6-6.9 |doi=10.1046/j.1468-4004.2003.45606.x |bibcode = 2004A&G....45f...6P |doi-access=free }}</ref> Most of the stars in the galaxy formed 7 billion years ago,<ref>[http://www.atlasoftheuniverse.com/sattelit.html The Satellite Galaxies]</ref> although it also experienced bursts of star formation about 13 and 3 billion years ago.<ref>{{cite journal|last=Hurley-Keller|first=Dennise |first2=Mario|last2=Mateo |first3=James|last3=Nemec |title=The Star Formation History of the Carina Dwarf Galaxy|journal=The Astronomical Journal|date=1998|volume=115|pages=1840|doi=10.1086/300326|arxiv = astro-ph/9804058 |bibcode = 1998AJ....115.1840H }}</ref> It is also being [[tidal force|tidally]] disrupted by the Milky Way galaxy.<ref>{{cite journal|last=Kuhn|first=J. R. |first2=Horace A.|last2=Smith |first3=Suzanne L.|last3=Hawley |title=Tidal Disruption and Tails from the Carina Dwarf Spheroidal Galaxy|journal=The Astrophysical Journal|date=1996|volume=469|pages=L93-L96|doi=10.1086/310270|bibcode = 1996ApJ...469L..93K |doi-access=free}}</ref> |
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==References== |
==References== |
Revision as of 10:41, 9 November 2020
Carina Dwarf Spheroidal Galaxy | |
---|---|
Observation data (J2000 epoch) | |
Constellation | Carina |
Right ascension | 06h 41m 36.7s[2] |
Declination | −50° 57′ 58″[2] |
Redshift | 230 ± 60 km/s[2] |
Distance | 330 ± 30 kly (100 ± 10 kpc)[3][4] |
Apparent magnitude (V) | 11.3B[2] |
Characteristics | |
Type | E3[2] |
Mass | 1.51-1.69 × 106[5] M☉ |
Apparent size (V) | 23′.4 × 15′.5[2] |
Notable features | - |
Other designations | |
Carina Dwarf,[2] PGC 19441,[2] ESO 206-G20 |
The Carina Dwarf Spheroidal Galaxy is a dwarf galaxy in the Carina constellation. It was discovered in 1977 with the UK Schmidt Telescope by Cannon et al.[6][7] The Carina Dwarf Spheroidal galaxy is a satellite galaxy of the Milky Way and is receding from it at 230 km/s.[2] The diameter of the galaxy is about 1,600 light-years, which is 75 times smaller than the Milky Way.[8] Most of the stars in the galaxy formed 7 billion years ago,[9] although it also experienced bursts of star formation about 13 and 3 billion years ago.[10] It is also being tidally disrupted by the Milky Way galaxy.[11]
References
- ^ "Hiding in Plain Sight — the elusive Carina Dwarf Galaxy". ESO Picture of the Week. European Southern Observatory. Retrieved 28 June 2011.
- ^ a b c d e f g h i "NASA/IPAC Extragalactic Database". Results for Carina Dwarf Spheroidal. Retrieved 2006-11-29.
- ^ I. D. Karachentsev; V. E. Karachentseva; W. K. Hutchmeier; D. I. Makarov (2004). "A Catalog of Neighboring Galaxies". Astronomical Journal. 127 (4): 2031–2068. Bibcode:2004AJ....127.2031K. doi:10.1086/382905.
- ^ Karachentsev, I. D.; Kashibadze, O. G. (2006). "Masses of the local group and of the M81 group estimated from distortions in the local velocity field". Astrophysics. 49 (1): 3–18. Bibcode:2006Ap.....49....3K. doi:10.1007/s10511-006-0002-6.
- ^ F. A. Santana; R. R. Munoz; T. J. L. de Boer; J. D. Simon; M. Geha; P. Cote; A. E. Guzman; P. Stetson; S. G. Djorgovski. "A MegaCam Survey of Outer Halo Satellites. VI. The Spatially Resolved Star-formation History of the Carina Dwarf Spheroidal Galaxy". Astrophysical Journal. arXiv:1607.05312. Bibcode:2016ApJ...829...86S. doi:10.3847/0004-637X/829/2/86.
{{cite journal}}
: CS1 maint: unflagged free DOI (link) - ^ Hartmut Frommert; Christine Kronberg. "Carina Dwarf". SEDS. Retrieved 2015-10-27.
- ^ R. D. Cannon; T. G. Hawarden; S. B. Tritton (1977). "A new Sculptor-type dwarf elliptical galaxy in Carina". Monthly Notices of the Royal Astronomical Society. 180: 81–82. Bibcode:1977MNRAS.180P..81C. doi:10.1093/mnras/180.1.81p.
- ^ Steve Phillipps. "Small galaxies are growing smaller". Astronomy & Geophysics. 45 (6): 6.6-6.9. Bibcode:2004A&G....45f...6P. doi:10.1046/j.1468-4004.2003.45606.x.
- ^ The Satellite Galaxies
- ^ Hurley-Keller, Dennise; Mateo, Mario; Nemec, James (1998). "The Star Formation History of the Carina Dwarf Galaxy". The Astronomical Journal. 115: 1840. arXiv:astro-ph/9804058. Bibcode:1998AJ....115.1840H. doi:10.1086/300326.
- ^ Kuhn, J. R.; Smith, Horace A.; Hawley, Suzanne L. (1996). "Tidal Disruption and Tails from the Carina Dwarf Spheroidal Galaxy". The Astrophysical Journal. 469: L93–L96. Bibcode:1996ApJ...469L..93K. doi:10.1086/310270.
External links
- Media related to Carina Dwarf at Wikimedia Commons
- Carina Dwarf at SEDS
- Observations of Tidal Disruption of the Carina Dwarf Spheroidal Galaxy
- The Carina Dwarf on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images