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主題: 90億光年外 J021659-044920 星系 巨大400萬光年噴流結構 作者: peter 於 2015-11-09 09:13:25 http://www.sciencedaily.com/releases/2015/11/151106113742.htm
Giant Metrewave Radio Telescope (GMRT) (http://images.sciencedaily.com/2015/11/151106113742_1_540x360.jpg) 400萬光年大 http://astronomynow.com/2015/11/07/gmrt-discovers-giant-radio-galaxy-9-billion-light-years-away/ (http://astronomynow.com/wp-content/uploads/2015/11/gmrt_discover_691x562.jpg) This is an optical image of J021659-044920 with radio lobes (in yellow-red) supimposed. The supermassive black hole in the red galaxy at the centre (zoomed-in inset) has led to the formation of the giant radio lobes. Image credit: Prathamesh Tamhane/Yogesh Wadadekar. 主題: 回覆： 90億光年外 J021659-044920 星系 巨大結構 作者: peter 於 2015-11-09 09:16:32 3c 273 類星體 經測量長度有20萬光年 https://zh.wikipedia.org/wiki/3C_273 微類星體 https://zh.wikipedia.org/wiki/%E5%BE%AE%E9%A1%9E%E6%98%9F%E9%AB%94 微類星體是類星體的小型表親。其命名看得出來是源自類星體，而兩者間有些共同點：強烈且時變的無線電波放射，常表現成無線電波噴流(radio jet)， |