查询词典 The Black Hole

But, unlike the black hole at the centre of our Milky Way, the million-solar-mass black hole inside NGC 4945 is an Active Galactic Nucleus that is frantically consuming any surrounding matter, and so releasing tremendous amounts of energy.

但与银河系核心的黑洞不同，NGC 4945中数百万太阳质量的超级黑洞正在疯狂地吞噬周围的物质、并释放极为巨大的能量——是个活跃星系核。

Utilizing the first law of thermodynamics for the black hole,the temperature of the black hole is calculated by its entropy.

计算黑洞温度的方法有多种。

Estimating by the area principle of the Black Hole, 29 percent of rest mass of Black Hole can be released.

通过黑洞的面积原理估计出，黑洞静止质量的百分之二十九是可以释放的。

Content Summary :According to my theory for spacetime of multimetrice of multiverse to be tangency each other , the white hole is germinating by the black hole having the mighty retractile pressure , it is restricted in the center of the black hole .

内容提要：根据作者提出的正交的多度规多宇宙时空理论，论述了白洞是由具有强大收缩压的黑洞孕育起来的，并被约束于黑洞的中心。

By using statistical entropy of the Dirac field of static spherically symmetric black hole , the black hole s radiant emittance is educed and calculated, the conclusion that the radiant emittance of the black hole is in proportionate to the quartic power of the temperature of the black hole s event horizon is drawn.

利用静态球对称黑洞Dirac场的统计熵，导出黑洞的辐出度，得到了黑洞的辐出度与黑洞视界温度的四次方成正比的结论。

Using the statistical entropy of the spinning gravitation field of static spherically symmetric black hole,the radiant emittance of static spherically symmetric black hole is calculated,and we obtain a conclusin that the radiant emittance of black hole is proportionate to quartic power of temperature of the event horizon of the black hole.

利用静态球对称黑洞引力自旋场的统计熵，导出静态球对称黑洞引力自旋场的辐出度，得到了黑洞的辐出度与黑洞视界温度的四次方成正比的结论。

A black hole forms inside surrounded by a disk of accreting matter, and, within a few seconds, launched a jet of matter away from the black hole that ultimately made the gamma-ray burst. Here we see the jet breaking through the outer shell of the star, about nine seconds after its creation.

在太空中平均每天可以探测到一段出现一瞬间的高能量伽玛射线，而计算显示这秒钟的能量大约有一整颗恒星那麼大，天文学家称此为伽玛射线暴。

A security enhancement scheme is proposed to encounter the black hole attacks in aodv protocol . this scheme may solve the black hole problem and prevent personating the destination node to some degree .

针对移动adhoc网络aodv协议中所存在的黑洞攻击，提出了一种增强安全性的解决方案，该方案能在一定程度上解决黑洞问题并可防止假冒目的节点攻击。

After perturbing a black hole,there is a quasinormal ringing outside the black hole.

研究黑洞拟正则模的动因之一就是确定黑洞的特征参量。

"The fate of this black hole and others like it is an active area of research," said George Helou, deputy director of NASA's Spitzer Science Center at the California Institute of Technology in Pasadena."Some theories hold that the black hole might quiet down and eventually entera more dormant state like our Milky Way black hole."

美国加利福尼亚州帕萨迪纳市加州理工学院，美国宇航局斯皮策科研中心副主管乔治·赫鲁说：&这个黑洞以及类似黑洞的命运是一个研究热点，某些理论坚信黑洞最终会平静下来并最后像银河中心黑洞一样进入休眠模式。&

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。