这些计算也可以帮助科学家们确定几乎所有星系中心的黑洞质量。
These calculations also help scientists determine the mass of black holes, which lie at the center of nearly all galaxies.
当黑洞质量减小时，外能层变厚，辐射温度也发生变化。
The ergosphere becomes thicker and the Hawking temperature changes when the mass of the black hole decreases.
黑洞“表面”就是所谓的活动视界，一个想像的黑洞质量周围的。
The "surface" of a black hole is the so-called event horizon, an imaginary surface surrounding the mass of the black hole.
他们的研究方法表明，用其他光谱方法测量的遥远活动星系核的黑洞质量大概夸大了2-10倍。
Their method indicates that the mass of distant AGN black holes as estimated by other spectral methods is two to 10 times too high.
原先估计M87星系的黑洞质量为太阳的3亿倍，仍然相当于银河系次中量级黑洞的1000倍。
Previous estimates of M87's black hole mass registered at some 3 billionsuns, still 1,000 times the size of the Milky Way's welterweight black hole.
近些年来，天文世界十大变态杀人狂学家们认识到宇宙内近处的星系全都是其中心黑洞质量的约700倍。
In recent years, astronomers have learned that galax ies in the nearby universe are uniformly about 700 times as massive as the black holes at their cores.
只有拥有球形膨胀物质的星系才可能容纳超大质量的黑洞。
Only galaxies with a spherical bulge—like component appear to accommodate supermassive black holes.
这些发现可以帮助寻找出许多其它质量接近黑洞阙值的星体的情况。
The discovery could help sort out the fates of many other stars with masses close to the black hole threshold.
微型类星体是一种质量接近黑洞的恒星。
Microquasars are black holes of about the same mass as a star.
这些X射线的强度会根据黑洞的质量而周期变动。
The intensity of those X-rays can vary periodically, depending on the black hole's mass.
特大质量的黑洞，作为宇宙中的结构的基础，继续同样的捕获着公众和专家们想象。
Supermassive black holes, which are the foundation for structure in the universe, went on to capture the imagination of the public and experts alike.
这幅图描绘了位于星系中心的一颗超大质量黑洞。
This illustration depicts a supermassive black hole at the center of a galaxy.
星系中心的超大质量黑洞（磁星周围的星系应该是最先生成的）更加令人不安，因为数量太多了。
The supermassive black holes at the centres of galaxies (and around which those galaxies are assumed to have accreted in the first place) are much more disturbing, for there are a lot more of them.
获得的数据被用来计算黑洞的质量。
研究小组通过比较黑洞和它的寄主星系的质量，可以确定这些黑洞吞噬了多少物质。
The team also compared the masses of the black holes with the total masses of their host galaxies to determine how much matter they had swallowed.
这导致研究人员怀疑一个迷途的白矮星离某个中等质量黑洞太接近了，并受其潮汐引力的撕扯。
This leads the researchers to suspect that a white dwarf star strayed too close to the intermediate-mass black hole and was ripped apart by tidal forces.
事实上，上面的画面显示雨燕X射线天文台在多个星系合并系统中探测到的超大质量黑洞(圆圈)。
In fact, these panels show the location (circled) of Swift X-ray detected supermassive black holes in a variety of merging galaxy systems.
研究结果表明，银河系黑洞的这种微弱而不稳定的行为很有可能在现今的特大质量黑洞中具有典型意义。
The results of this study imply that the feeble, but erratic behavior of the black hole in the Milky Way could potentially be typical for present-day supermassive black holes.
科研人员根据已有数据，通过哈勃太空望远镜更近距离的观察这个黑洞。发现M87星系的特大质量黑洞已经移出了中心位置。
Researchers used data from the Hubble Space Telescope to look more closely at the black hole, and found that the supermassive black hole in the M87 galaxy is, in fact, displaced from the center.
升温现象始于距黑洞700光年处，于是天文学家可以就此估算黑洞的质量。
This temperature rise begins about 700 light-years away from the black hole, allowing astronomers to estimate the black hole’s mass.
爆炸的恒星其质量接近形成黑洞的理论质量极限，即太阳质量的20倍左右。
The star that exploded that year was just on the edge of the theoretical mass limit for forming black holes, about 20 times the mass of the sun.
人类所发现的最轻且最小的黑洞其质量为太阳的3.8倍，直径24公里——堪堪超过曼哈顿岛的长度。
The lightest and smallest black hole ever found is just 3.8 times the mass of our sun and only 15 miles across — just barely longer than the island of Manhattan.
分散在超大质量黑洞周围的中子星。
据推算，NGC3115中心的超大质量黑洞，距地球3200万光年，质量相当于太阳质量的20亿倍。这也使它成为距地球最近的“10亿太阳质量级别”黑洞。
The supermassive black hole at the center of NGC 3115, they calculate, has a mass of about 2 billion Suns, making it the nearest billion-solar-mass black hole to Earth at 32 million light-years away.
这些结论帮助解释了特大质量黑洞如何可以改变它所在星系的演化。
These results help explain how a supermassive black hole can alter the evolution of its host galaxy.
科学家们认为这些圆环结构可能来自超大质量黑洞碰撞产生的强大，并且大部分显示各向同性的能量爆发。
The scientists think that these circles stem from the results of collisions between supermassive black holes that released huge, mostly isotropic bursts of energy.
类星体是星系中最活跃的中心，尽管他们围绕着中心特大质量黑洞。
Quasars are the very active centers of galaxies though to surround the central supermassive black hole.
最新一期的《天体物理学杂志》讲更详细的介绍关于M87特大质量黑洞的这项研究。
The study of M87?s supermassive black hole will be detailed in an upcoming issue of The Astrophysical Journal Letters.
最新一期的《天体物理学杂志》讲更详细的介绍关于M87特大质量黑洞的这项研究。
The study of M87?s supermassive black hole will be detailed in an upcoming issue of The Astrophysical Journal Letters.
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