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Cewbot: 修正維基語法 10: 連結方括號未對應

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{{Infobox galaxy
| name = LEDA 2108986
| image =
| image_size = 200px
| caption =由[[加法夏望遠鏡]]拍攝的LEDA 2108986星系的假色影像。此影像的對比度已調整，以突出內部棒/螺旋結構。
| epoch = [[J2000]]
| constellation name = [[牧夫座]]
| ra = {{RA|15|03|15.557}}<ref name=SIMBAD>{{cite simbad|title=2MASX J15031550+3745580|accessdate=20 March 2018}}</ref>
| dec = {{DEC|+37|45|57.96}}<ref name=SIMBAD/>
| dist_ly = {{convert|45.7|Mpc|ly|abbr=on|lk=on}} {{hub|0.678}}
| type = ES, E/S0<ref name=NED>NED, [http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=LEDA+2108986&extend=no&hconst=67.8&omegam=0.308&omegav=0.692&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES] (accessed 20 March 2018)</ref>
| names = [[2MASX]] J15031550+3745580、[[史隆數位巡天|SDSS]] J150315.54+374558.0<ref name=SIMBAD/>
}}

'''LEDA 2108986'''<ref>Paturel, G., et al. (2003), [http://adsabs.harvard.edu/abs/2003A%26A...412...45P HYPERLEDA. I. Identification and designation of galaxies]</ref>，也以其[[凱斯西儲大學]]名稱「凱斯星系611」（“CG 611”）而聞名<ref>Sanduleak, N.; Pesch, Peter (1987), [http://adsabs.harvard.edu/abs/1987ApJS...63..809S The case low-dispersion northern sky survey. IV - Galaxies in the Bootes void region]</ref>，是一個極其孤立的早期型[[矮星系]]<ref>Hernández-Toledo, H.M., et al. (2010), [http://adsabs.harvard.edu/abs/2010AJ....139.2525H The UNAM-KIAS Catalog of Isolated Galaxies]</ref><ref>Fuse, C.; Marcum, P.; Fanelli, M. (2012), [http://adsabs.harvard.edu/abs/2012AJ....144...57F Extremely Isolated Early-type Galaxies in the Sloan Digital Sky Survey. I. The Sample]</ref><ref>Argudo-Fernández, M., et al. (2015), [http://adsabs.harvard.edu/abs/2015A%26A...578A.110A Catalogues of isolated galaxies, isolated pairs, and isolated triplets in the local Universe]</ref>，其中嵌入的螺旋結構位於可能是中等規模的盤面中<ref name=paper>{{Cite journal|arxiv=1705.03587|title=Implications for the origin of dwarf early-type galaxies: a detailed look at the isolated rotating dwarf early-type galaxy CG 611, with ramifications for the Fundamental Plane's S<sub>K</sub><sup>2</sup> kinematic scaling and the spin-ellipticity diagram|journal=The Astrophysical Journal|volume=840|issue=2|pages=68|date=May 8, 2017|last1= Graham|first1=Alister W.|last2= Janz|first2=Joachim|last3= Penny|first3=Samantha J.|last4=Chilingarian|first4=Igor V.|last5=Ciambur|first5=Bogdan C.|last6=Forbes|first6=Duncan A.|last7=Davies|first7=Roger L.|doi=10.3847/1538-4357/aa6e56|bibcode = 2017ApJ...840...68G |s2cid=54018338 |doi-access=free }}</ref>。該星系於1987年由Sanduleak和Pesch在[[牧夫座空洞]]內發現，距離[[地球]]約{{Convert|45.7|Mpc|ly}}，而且在250萬[[秒差距]]內沒有顯著的鄰居。

該星系可能與矩形星系[[LEDA 74886]]相對應，因為它們似乎都包含一個中等尺度的盤面。在[[LEDA 74886]]的情况下，該盤面的方向與我們的視線邊緣對齊。眾所周知，「早期型星系」包含[[橢圓星系]]（E），沒有實質性的恆星盤（可能只是一個小的核盤）和[[透鏡星系]]（S0），它們的大尺度盤面在大半徑處主導著光度。連接這兩種星系的是ES星系<ref>Liller, M.H. (1966), [http://adsabs.harvard.edu/abs/1966ApJ...146...28L The Distribution of Intensity in Elliptical Galaxies of the Virgo Cluster. II]</ref>，在最近的研究中，它們被稱為「Ellicular」星系<ref name=paper/>。

== 重要性 ==
LEDA 2108986吸積了一個氣體盤，該氣體盤相對於其恆星盤反向旋轉。它還在這個恆星盤中顯示了一個年輕的螺旋圖案。
星系團中的一些[[矮橢球星系|矮早期型星系]]存在這種微弱的盤結構和旋轉，這通常被認為是它們在經歷星系團誘導的轉變之前，曾經是晚期螺旋星系或矮不規則星系的證據，這種轉變被稱為[[相互作用星系#星系騷擾|星系騷擾]]。 LEDA 2108986的極端孤立證明了矮早期型星系可以通過吸積事件建立，而不是「星系騷擾」模型中的盤剝離情况。

== 相關條目 ==
*[[LEDA 74886]]
*[[NGC 1271]]<ref>Graham, Alister W.; Ciambur, Bogdan C.; Savorgnan, Giulia A.D. (2016), [http://adsabs.harvard.edu/abs/2016ApJ...831..132G Disky Elliptical Galaxies and the Allegedly Over-massive Black Hole in the Compact “ES“ Galaxy NGC 1271]</ref>
*[[Mrk 1216]]、[[NGC 1277]]、[[NGC 1332]]、[[NGC 4291]]<ref>Savorgnan, Giulia A.D. and Graham, Alister W. (2016), [http://adsabs.harvard.edu/abs/2016MNRAS.457..320S Explaining the reportedly overmassive black holes in early-type galaxies with intermediate-scale discs]</ref>

== 參考文獻 ==
{{reflist}}

[[Category:LEDA天體|2108986]]
[[Category:矮星系]]
[[Category:牧夫座]]
[[Category:透鏡狀星系]]

LEDA 2108986 - 版本历史

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imported>Cewbot：Cewbot: 修正維基語法 10: 連結方括號未對應