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马卡良231

马卡良231
观测资料(J2000 历元
星座大熊座
赤经12h 56s
赤纬+56° 51′ 59″
红移0.04147
距离5.81亿光年
视星等 (V)13.60
特征
类型3 D
其他名称
UGC 8058, Mrk 231, Mkn 231, Markarian 231, MCG+10-19-004, ZW VII 490
参考: SIMBAD
参见:星系星系列表

马卡良231Markarian 231UGC 8058)是亚美尼亚布拉堪天文台于1969年的紫外线辐射巡天中发现的星系。该星系属于第一型西佛星系,距离地球5亿8,100万光年。它有一个已知最接近我们的似星体,并且在2015年被证明是强大的活跃星系核,存在该星系中心的实际上可能是双黑洞

特性

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这个星系现在正在精力充沛的星爆。已经发现由活耀恒星形成的核环,其形成恒星的速率约为每年100倍太阳质量。该星系由于中心黑洞吸积效应,是红外线超量最强烈的星系之一。并且该星系的似星体是已知距离地球最近的。它是与中心有能量释出的黑洞共生的超亮红外线星系,并且是已知最邻近的类星体。 2015年,一项研究计划宣布在该星系中心有个质量为太阳1.5亿倍的黑洞,还有一个质量为太阳4百万倍的伴星黑洞。并且两个黑洞互相环绕的轨道周期为1.2年[1]

艺术家概念下的双黑洞[2]

参见

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参考资料

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外部链接

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马卡良231
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