imported>-Zest：clean up

2025-11-28T07:36:55Z

clean up

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{{Infobox galaxy
| name = NGC 4293
| image = File:Ngc4293-hst-606.png
| caption = NGC 4293的不完整照片，由[[哈勃太空望遠鏡]]拍攝
| epoch = [[J2000]]
| pronounce =
| constellation name = [[後髮座]]
| ra = {{RA|12|21|12.891}}<ref name="ApJ131_1163"/>
| dec = {{DEC|+18|22|56.64}}<ref name="ApJ131_1163"/>
| z = 0.002977<ref name=apj560_2_566/>
| h_radial_v = 893<ref name="Crook2007"/>
| gal_v =
| dist_pc =
| dist_ly = {{Convert|16.5|Mpc|Mly|abbr=on|lk=on|order=flip}}<ref name="MNRAS413_2_813"/>
| group_cluster = [[室女座星系團]]
| type = (R)SB(s)0/a<ref name=vaucoulerus1991/>
| mass = 
| mass_light_ratio = 
| size = 
| stars =
| appmag_v = 10.4<ref name=omeara2011/>
| appmag_b =
| absmag_v =
| size_v = {{nowrap|5.293′ × 1.800′}}<ref name="ApJ131_1163"/>
| notes =
| names = [[2MASX]] J12211289+1822566, [[IRAS]] 12186+1839, [[里昂-默東星系資料庫|LEDA]] 39907, [[Uppsala General Catalogue|UGC]] 7405, [[UZC]] J122112.6+182256, [[Fritz Zwicky#Catalog of Galaxies and Clusters|Z]] 99-23, VCC 460.<ref name=SIMBAD/>
| references =
}}
'''NGC 4293''' 是一個位於[[后髮座]]北部的[[透鏡狀星系]]，由英國天文學家[[威廉·赫歇爾]]於1787年3月14日發現。他將這個星系形容為「大而長，可分辨，長度為6-7[[角分]]」。這個星系位於[[五諸侯增六]]的西北偏北方向，是[[室女座星系團]]的一員。<ref name=omeara2011/>其和室女座星系團與地球的距離可能大致相同，約為5400萬光年。<ref name="MNRAS413_2_813"/>該星系的尺寸約為{{nowrap|5.3×3.1角分}}。<ref name=omeara2011/>

該星系的[[星系型態分類|型態類型]]為(R)SB(s)0/a，類型編號中的SB0/a表明該星系含有可勉強分辨的蜿蜒旋臂且其[[核球]]為[[棒旋星系|棒狀]]。而「(s)」標記則表明這個星系在其核球周圍沒有環狀結構。<ref name=vaucoulerus1991/><ref name=keel2015/>該星系的恆星形成區域僅限於星系中心附近。<ref name=pasp2009/>此外，該星系的星盤外側存在擾動，表明其與其他天體發生了引力相互作用<ref name=rmaa2006/>。

該星系屬於一種名為[[低電離星系核]]的常見[[活躍星系]]，意味著該星系的視覺光譜主要由處於低能[[電離]]態的氣體[[發射線]]組成。這可能是由於一個位於星系核球的[[超大質量黑洞]]正以較低的速率累積物質，該黑洞的質量約為{{Val|5.9e7}} [[太陽質量|M<sub>⊙</sub>]]。<ref name=chiaberge2005/>由於該星系距地球較近，人類探測到了該星系-{}-由於熱能活動而產生的無線電波。<ref name=aa451_1_71/>

== 圖集 ==
<gallery>
NGC4293 - SDSS DR14.jpg|
NGC 4293 hst 05446 606.png|由[[哈勃太空望遠鏡]]拍攝
</gallery>

== 參考文獻 ==
{{reflist|refs=

<ref name="ApJ131_1163">{{Citation | postscript = .
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| last15=Price | first15=Stephan | last16=Seitzer | first16=Patrick
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| title=The Two Micron All Sky Survey (2MASS)
| journal=The Astronomical Journal
| date=1 February 2006 | volume=131 | issue=2 | pages=1163–1183
| bibcode=2006AJ....131.1163S | s2cid=18913331
| doi=10.1086/498708 | issn=0004-6256 | doi-access=free }}</ref>

<ref name="MNRAS413_2_813">{{Citation
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| display-authors = 1
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|date=May 2011
| arxiv = 1012.1551
| doi = 10.1111/j.1365-2966.2010.18174.x
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| s2cid = 15391206 | postscript = .
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<ref name=apj560_2_566>{{citation
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<ref name="Crook2007">{{Citation
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| volume = 655 | issue = 2 | pages = 790–813 | date=February 2007
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<ref name=vaucoulerus1991>{{citation
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|dead-url = no
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<ref name=chiaberge2005>{{citation
| display-authors=1
| last1=Chiaberge | first1=Marco
| last2=Capetti | first2=Alessandro
| last3=Macchetto | first3=F. Duccio
| title=The Hubble Space Telescope View of LINER Nuclei: Evidence for a Dual Population?
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| volume=625 | issue=2 | pages=716–726
| date=June 2005
| doi=10.1086/429612
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|arxiv = astro-ph/0501461 | s2cid=6676560 }}</ref>

<ref name=pasp2009>{{citation
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| last3=Bacon | first3=R.
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| last5=Davies | first5=R. L.
| last6=de Zeeuw | first6=P. T.
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| title=Stellar and Ionized Gas Kinematics of Peculiar Virgo Cluster Galaxies
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| contribution=XI IAU Regional Latin American Meeting of Astronomy
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|arxiv = astro-ph/0602627 }}</ref>

<ref name=aa451_1_71>{{citation
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| last3=Ho | first3=L. C.
| title=A radio census of nuclear activity in nearby galaxies
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|arxiv = astro-ph/0601080 | s2cid=16640767
}}</ref>

<ref name=keel2015>{{citation
| first1=William C.
| last1=Keel
| publisher=[[阿拉巴馬大學]]
| date=January 2015
| title=Galaxy Classification
| url=http://www.astr.ua.edu/keel/galaxies/classify.html
| access-date=2015-11-25
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| archive-url=https://web.archive.org/web/20060901074027/http://www.astr.ua.edu/keel/galaxies/classify.html
| dead-url=no
}}</ref>

<ref name=omeara2011>{{citation
| first1=Stephen James | last1=O'Meara
| title=Deep-Sky Companions: The Secret Deep | volume=4
| publisher=[[Cambridge University Press]]
| year=2011 | isbn=978-1-139-50007-4 | pages=230–231
| url=https://books.google.com/books?id=v859bKO0A4gC&pg=PA230
| postscript=.
}}</ref>

<ref name=SIMBAD>{{cite simbad
| title=NGC 4293
| url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC+4293
| access-date=2015-11-16
}}</ref>

}}

==外部連結==
* {{commonscat-inline}}

{{Ngc45}}
{{Coma Berenices}}

{{DEFAULTSORT:NGC 4293}}
[[Category:透鏡狀星系]]
[[Category:後髮座]]
[[Category:NGC天体|4293]]
[[Category:UGC天體|7405]]
[[Category:LINER星系]]
[[Category:室女座星系團]]

NGC 4293 - 版本历史

imported>-Zest：​clean up

imported>-Zest：clean up