It would take only an hour for the white dwarf to smash through , but the damage would be irreversible 白矮星只需要一个小时就可以猛穿而过，但其所造成的破坏是无法挽回的。
In contrast , a type i supernova is an ordinary nova explosion that are strong enough to destroy the white dwarf at the center Ii型超新星i型超新星其实只是强度足以把中心白矮星炸毁的普通新星爆发。
We know that a star with mass lower than 8 solar masses , such as the sun , will end its life as a cold , compact object called white dwarf 少于8个太阳质量的星如太阳，最终会演化为一颗寒冷细小的白矮星。
A typical white dwarf is slightly smaller than the earth , but with about the same mass as our sun . its density is about 300 , 000 times of a rock 一颗典型的白矮星比地球略小，但质量却和太阳差不多，密度是岩石的30万倍。
If the mass of the white dwarf becomes greater than about 1 . 4 times the mass of the sun , it becomes unstable and is blown apart in a thermonuclear explosion 如果白矮星的质量超过了太阳的1 . 4倍，它会变得不稳定，并在热核爆炸中碎裂。
After the explosion , if the mass left is less than 1 . 4 solar masses , a white dwarf will form . if it is between 1 . 4 to about 3 solar masses , a 在大爆炸后，若剩馀质量少于1 . 4个太阳质量，便会成为白矮星若质量介乎1 . 4至大约3个太阳质量，便会成为
It has ejected masses of dust and gas and now for a few hundred thousand years , it is in this temporary state before it becomes what is known as a white dwarf 星云就是即将消逝的星体，它所含有的氦已经慢慢消失，然后产生内爆，这种暂时的状态要维持数十万年。
Meanwhile the agent of this catastrophe , the white dwarf , would continue blithely on its way ? not that we would be around to care about the injustice of it all 与此同时，此次大祸的元凶白矮星，则轻快地继续它的旅程不消说，我们已无缘待在那里抗议不公平了。
Data from the chandra observation show that the central ten - million - degree celsius cloud is the remains of a supernova explosion that destroyed a white dwarf star 来自钱德拉的观测数据表明，中心温度达上千万摄氏度的云湍团是超新星爆发的残余，爆发摧毁了一颗白矮星。
The collapse of a star may produce a white dwarf or a neutron star ? a star , whose matter is so dense that it continually shrinks by the force of its own gravity 一些星星的瓦解可能会产生一颗白矮星或一颗中子星?一颗星，那些东西是如此的密集以至于被它们自己的引力不断的缩短。
