Without starbursts , therefore , seyfert galaxies would probably cease to shine 因而，没有星群爆发，赛非星系很可能就不会发光。
2.
Seyfert galaxies are energetic because they have a central black hole surrounded by a ring of gas 赛非星系能量巨大，因为在其中心有-一黑洞，黑洞周围则环绕着环状星云。
3.
Daniel kunth , of the institute of astrophysique in paris has been looking for wolf - rayet signatures in distant seyfert galaxies , and he has found several 巴黎天体物理研究所的丹尼尔?肯一直在遥远的赛非星系中寻找"伍尔夫-雷耶特"特征，且已经找到一些。
