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NGC 7052

NGC 7052
NGC 7052影像
观测资料(J2000 历元
星座狐狸座
赤经21h 18m 33s[1]
赤纬+26° 26′ 49″[1]
红移4672 ± 8 km/s[1]
视星等 (V)13.4[1]
特征
类型E[1]
角直径 (V)2′.5 × 1′.4[1]
其他名称
UGC 11718,[1] PGC 66537[1]
参见:星系星系列表

NGC 7052是一个位于狐狸座的椭圆星系。该星系由威廉·赫歇尔发现于1784年,距离地球约1.91亿光年[2]。天文学家在该星系中心发现质量大约是 亿倍太阳质量超大质量黑洞[3]。该黑洞外围的气体与尘埃盘质量大约是太阳的300万倍。

NGC 7052还是个无限电波源,但中心喷流并不垂直银河盘面。这可能是因为NGC 7052曾经和邻近星系碰撞过[2]

哈伯太空望远镜拍摄的NGC 7052中心影像。Credit: HST/NASA/ESA

参考资料

[编辑]
  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 NASA/IPAC Extragalactic Database. Results for NGC 7052. [2007-04-19]. (原始内容存档于2011-05-14). 
  2. ^ 2.0 2.1 Hubble Uncovers Dust Disk around a Massive Black Hole. [2015-03-17]. (原始内容存档于2015-04-02). 
  3. ^ van der Marel, R.P. & van den Bosch, F.C. Evidence for a 3 x 108 M Black Hole in NGC 7052 from Hubble Space Telescope Observations of the Nuclear Gas Disk. Astronomical Journal. 1998, 116: 2220. Bibcode:1998AJ....116.2220V. arXiv:astro-ph/9804194可免费查阅. doi:10.1086/300593. 


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NGC 7052
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