賽弗特星系

它們表面上類似正常的螺旋星系,但在其中心區域正在發生劇烈的活動。它們似乎與已知的最強大的射電源,類星體,有很多共同之處

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About Ray J. Weymann

Ray Weymann is director emeritus of the Carnegie Observatories and has done research in cosmology and on the intergalactic gas. Since retirement he has concentrated on public education regarding climate change.

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大眾科學 Magazine Vol 220 Issue 1This article was originally published with the title “Seyfert Galaxies” in 大眾科學 Magazine Vol. 220 No. 1 (), p. 28
doi:10.1038/scientificamerican0169-28
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