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NGC 3115

NGC 3115
观测资料(J2000 曆元
星座六分儀座
赤经10h 05m 14.0s[1]
赤纬-7° 43′ 07″[1]
紅移663 ± 4公里/秒[1]
距离3,160萬 ± 130萬光年 (970萬 ± 40萬秒差距)[2]
视星等 (V)9.9[1]
特征
类型S0[1]
角直徑 (V)7′.2 × 2′.5[1]
其他名称
Spindle Galaxy, UGCA 199, PGC 29265,[1] 科德韋爾53
參見:星系星系列表

NGC 3115,也稱為紡錘星系科德韋爾53,是位於六分儀座的一個 透鏡星系。這個星系是威廉·赫歇爾在1787年2月22日發現的[3],與地球的距離大約是3,200萬光年,它的大小數倍於銀河系

在1992年,夏威夷大學的John Kormendy和密西根大學的Douglas Richstone宣稱在這個星系觀測到超大質量黑洞[4],它是當時發現最大的 (20億太陽質量)。這個星系的恆星看起來都是老年或是不活躍的,黑洞的生長也已經停止。

相關條目

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  • NGC 5866 - 另一個經常會與紡錘星系做比較的透鏡星系。

參考資料

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  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 NASA/IPAC Extragalactic Database. Results for NGC 3115. [2006-10-12]. (原始内容存档于2011-05-14). 
  2. ^ J. L. Tonry, A. Dressler, J. P. Blakeslee, E. A. Ajhar, A. B. Fletcher, G. A. Luppino, M. R. Metzger, C. B. Moore. The SBF Survey of Galaxy Distances. IV. SBF Magnitudes, Colors, and Distances. Astrophysical Journal. 2001, 546 (2): 681–693 [2011-01-24]. doi:10.1086/318301. (原始内容存档于2008-02-14). 
  3. ^ O'Meara, Stephen James. The Caldwell Objects. Cambridge: Cambridge University Press. 2002: 211. ISBN 0-521-82796-5. 
  4. ^ Kormendy, J. and Richstone, D. "Evidence for a supermassive black hole in NGC 3115", Astrophysical Journal, Part 1, vol. 393, no. 2, July 10, 1992, p. 559-578.

外部連結

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NGC 3115
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