| 1. | A small percentage of galaxies called active galaxies emit tremendous amounts of energy
有一小部分被称做活动星系的星系放射出巨大的能量。 |
| 2. | Some active galaxies emit jets and blobs of highly energetic , electrically charged particles
一些活动星系发出高能的喷射和溅射? ?带电的粒子。 |
| 3. | We are not completely sure how an active galaxy is formed and how it generates such a large amount of energy
其实我们仍不大清楚活动星系的形成过程，亦不知道星核放射出大量辐射的机制。 |
| 4. | The milky way is not an active galaxy , but it does have a powerful source of radiation called sagittarius a * at its center
银河系不是一个活动星系，但它中心也有一个强大的射电源称为“人马座a * ” 。 |
| 5. | The double black holes were found in a bright , highly active galaxy known as ngc6240 , about 400 million light - years from the earth
这对黑洞存在于一个极其活跃明亮的星系中，该星系被命名为ngc6240 ，它距地球约有4亿光年。 |
| 6. | Introduce new findings from the hubble space telescope . the splendid pictures captured by the space telescope includes the supernova 1987a and active galaxy m87
当中选辑了很多幅由它摄得的精美图片，包括超新星1987a及m87活跃星系等，并附有每月重要天象资料。 |
| 7. | Introduce new findings from the hubble space telescope . the splendid pictures captured by the space telescope includes the supernova 1987a and active galaxy m87
当中选辑了很多幅由它摄得的精美图片，包括超新星1987a及m87活跃星系等，并附有每月重要天象资料。 |
| 8. | In the cores of many so - called " active galaxies " , we can observe extremely powerful radio sources with double - lobed structure and jets of high - energy particles
很多所谓活跃星系的核心都会发出能量极大的无线电辐射，或拥有高能粒子喷流双瓣无线电辐射源等结构。 |
| 9. | Chapter one briefly summarizes the defined character and classification of active galaxies nuclei ( agns ) presents the energy mechanism and unified schemes of agns
第一章简要概述了活动星系核的定义，特征和分类。介绍了活动星系核能源产生机制和活动星系核的统一模型。 |
| 10. | An active galaxy is a galaxy that radiates unusual large amount of energy in the form of infrared , ultraviolet and x - rays ; always from the nucleus of the galaxy . so , it is also termed the
，这种不寻常的星系会由星系中心放射出大量的红外线紫外线及x射线，所以我们称它的核心为 |
