imported>凌雲：修飾語句

2022-04-08T18:33:31Z

修飾語句

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{{Infobox Galaxy
| image =
| caption = ''M84''. Credit:[[NOAO]].
| name = [[梅西耶天體|梅西耶]] 84
| type = E1<ref name="ned">{{cite web
| title=NASA/IPAC Extragalactic Database
| work=Results for NGC 4374
| url=http://nedwww.ipac.caltech.edu/
| accessdate=2006-11-14
| archive-date=2018-12-25
| archive-url=https://web.archive.org/web/20181225045153/http://ned.ipac.caltech.edu/
| dead-url=no
}}</ref>
| epoch = [[J2000]]
| ra = {{RA|12|25|03.7}}<ref name="ned" />
| dec = {{DEC|+12|53|13}}<ref name="ned" />
| dist_ly = [[1 E23 m|60 ± 3]] [[光年|Mly]] (18.4 ± 0.9 [[秒差距|Mpc]])<ref name="tonryetal2001">{{cite journal
| author=J. L. Tonry, A. Dressler, J. P. Blakeslee, E. A. Ajhar, A. B. Fletcher, G. A. Luppino, M. R. Metzger, C. B. Moore
| title=The SBF Survey of Galaxy Distances. IV. SBF Magnitudes, Colors, and Distances
| journal=Astrophysical Journal
| year=2001
| volume=546
| issue=2
| pages=681–693
| url=http://adsabs.harvard.edu/abs/2001ApJ...546..681T
| doi=10.1086/318301
| access-date=2007-08-15
| archive-date=2008-02-14
| archive-url=https://web.archive.org/web/20080214211129/http://adsabs.harvard.edu/abs/2001ApJ...546..681T
| dead-url=no
}}</ref>
| z = 1060 ± 6 km/s<ref name="ned" />
| appmag_v = 10.1<ref name="ned" />
| size_v = 6′.5 × 5′.6<ref name="ned" />
| constellation name = [[室女座]]
| notes = -
| names = [[New General Catalogue|NGC]] 4374,<ref name="ned" /> [[Uppsala General Catalogue|UGC]] 7494,<ref name="ned" /> [[Principal Galaxies Catalogue|PGC]] 40455,<ref name="ned" />[[特殊星系圖集|阿普]]763<ref name="ned"/>
}}
'''M84'''（也稱為'''NGC 4374'''）是一個位於室女座的[[透鏡狀星系]]，深入於[[室女座星系團]]的核心內部，距離地球大約有5300萬光年遠
<ref name="Finoguenovetal2002">{{cite journal
| author=Finoguenov, A.; Jones, C.
| title=Chandra Observation of Low-Mass X-Ray Binaries in the Elliptical Galaxy M84
| journal=The Astrophysical Journal
| year=2002
| volume=574
| issue=2
| pages=754–761
| url=http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2002ApJ...574..754F | doi=10.1086/340997
}}</ref>，是室女座星系團中最明亮的星系之一。

無線電觀測和[[哈伯太空望遠鏡]]的影像顯示M84有兩道物質的噴流從星系的核心向外發射，加上接近核心的星盤有高速旋轉的氣體和恆星，顯示有著質量高達18 {{e|8}} [[太陽質量|M<sub>☉</sub>]]的超巨質量[[黑洞]]<ref name="Lyetal2004">{{cite journal
| author=Ly, C.; Walker, R. C.; Wrobel, J. M.
| title=An Attempt to Probe the Radio Jet Collimation Regions in NGC 4278, NGC 4374 (M84), and NGC 6166
| journal=The Astronomical Journal
| year=2004
| volume=127
| issue=1
| pages=119–124
| url=http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2004AJ....127..119L
| doi=10.1086/379855
| access-date=2009-07-05
| archive-date=2019-12-13
| archive-url=https://web.archive.org/web/20191213170024/http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2004AJ....127..119L
| dead-url=no
}}</ref>存在於星系的核心。

[[File:Messier 84 nucleus Hubble.jpg|thumb|left|200px|[[哈伯太空望遠鏡|HST]]觀測的M84核心。]]

== 歷史 ==
[[查爾斯·梅西耶]]有系統的在夜空中搜尋"雲狀的天體"，於1781年3月18日發現這個天體<ref name="jonesbook1991">{{cite book
| author=K. G. Jones
| year=1991
| title=Messier's Nebulae and Star Clusters
| edition= 2nd
| publisher=Cambridge University Press
| location=Cambridge
| isbn=0-521-37079-5 }}</ref>，是編入[[梅西耶天體|梅西耶目錄]]的第84個天體。

== 超新星 ==
在M84曾經觀測到兩顆[[超新星]]：[[SN 1957]]<ref name="Götz1958">{{cite journal
| author=Götz, W.
| title=Supernova in NGC 4374 (= M 84)
| journal=Astronomische Nachrichten
| year=1958
| volume=284
| pages=141
| url=http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1958AN....284..141G
| doi=10.1002/asna.19572840308 }}</ref>
和[[SN 1991bg]]<ref name="Kosaietal1991">{{cite journal
| author=Kosai, H.; Kushida, R.; Kato, T.; Filippenko, A.; Newberg, H.
| title=Supernova 1991bg in NGC 4374
| journal=IAU Circ.
| year=1958
| volume=5400
| pages=1
| url=http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1991IAUC.5400....1K }}</ref>。
可能還有第三顆：[[SN 1980I]]是它的一部分，或者是鄰近的星系[[M86|梅西耶 86]]或[[NGC 4387]]<ref name="Smith1981">{{cite journal
| author=Smith, H. A.
| title=The spectrum of the intergalactic supernova 1980I
| journal=Astronomical Journal
| volume=86
| pages=998–1002
| url=http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1981AJ.....86..998S
| doi=10.1086/112975 |date=July 1981}}</ref>。

== 外部連結 ==
* [https://web.archive.org/web/20071128052912/http://seds.org/messier/m/m084.html SEDS Lenticular Galaxy M84]
* {{WikiSky}}
* [http://www.wikisky.org/?object=M84&img_source=SDSS&zoom=9 '''WIKISKY.ORG''': SDSS image, M84] {{Wayback|url=http://www.wikisky.org/?object=M84&img_source=SDSS&zoom=9 |date=20200819230118 }}

== 參考資料 ==
{{reflist}}

{{Virgo}}
{{Sky|12|25|03.7|+|12|53|13|60300000}}
{{DEFAULTSORT:Messier 084}}
{{梅西耶天体}}

[[Category:透鏡狀星系]]
[[Category:室女座星系團]]
[[Category:室女座]]
[[Category:室女座NGC天體]]
[[Category:梅西耶天體|084]]
[[Category:NGC天體]]
[[Category:UGC天體|07494]]
[[Category:PGC天體|40455]]
[[Category:1781年發現的天體]]

M84 - 版本历史

imported>凌雲：​修飾語句

imported>凌雲：修飾語句