"Markarian 739 West shows no evidence of being an AGN in visible, ultraviolet and radio observations," said coauthor Sylvain Veilleux, a professor of astronomy at UMCP.
“马卡良739西没有显示出作为一个在可见光，紫外线和射电观测活动星系核的证据，说：”西尔veilleux合作者，一个在UMCP天文学教授。
"If two galaxies collide and each possesses a supermassive black hole, there should be times when both black holes switch on as AGN," said coauthor Richard Mushotzky, professor of astronomy at UMCP.
“如果两个星系碰撞和每个人都拥有一个超大质量的黑洞，应当有两个黑洞的时候，作为活动星系核转，说：”作者之一理查德mushotzky，天文学教授UMCP。
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