微类星体是类星体的小型表亲。其命名看得出来是源自类星体，而两者间有些共同点：强烈且时变的无线电波辐射，常表现成无线电波喷流(radio jet)，以及一个围绕黑洞的吸积盘(accretion disk)。
磁场还可以驱动器等风小的黑洞周围，也被称为微类星体。
Magnetic fields can also drive such winds around small black holes, also known as micro-quasars.
同时，微类星体也产生大量的X射线，可是当前最新发现的未知天体却并未释放X射线。
Microquasars also produce plenty of X-rays, whereas no X-rays have been seen from the mystery object.
微类星体形成于超大质量恒星爆炸之后，残留形成一个质量是太阳10-20倍的黑洞，这个黑洞从残留的同伴恒星中吸取气体。
A microquasar is formed after a very massive star explodes, leaving behind a black hole around 10 to 20 times the mass of the sun, which then starts feeding on gas from a surviving companion star.
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