It's about as massive as Jupiter, but much more compact. It may be the remains of a carbon-rich white dwarf star. But it's been mostly cannibalized by its pulsar companion, and is now just a shadow of its former self.
这颗星球体积和木星差不多,但密度更高,很可能是富含碳白矮星残余物。不过在其脉冲星" 摧残" 之下,已经所剩无几了。