查询词典 quasars

Based upon our first paper and continuing the "Standard candle" classification by use of the component linear distance D, we attain to the following statistical correlation of some type of Quasars with largest angular diameter Q_: the correla- tion between visual magnitude and redshift; the correlation between its absolute magnitude, radio-luminosity of single frequency, integral radio Iuminosity, colour in- dex difference Q and D.

本文在第I部分的基础上，继续用类星体射电子源线距D进行"标准烛光"分类，经过统计分析，得到了子源角径最大的一类类星体的一些统计规律：它的视星等与红移之间，它的绝对星等、单频射电光度、积分射电光度和色指数差Q与D之间有很好的相关性等。

To assess the importance of quasar outflow we have performed a series of studies on broad absorption line quasars, and have obtained the following results.

为了确定外流的重要性，中国科学技术大学天体物理中心开展了宽吸收线类星体的一系列研究，取得了一些进展：(1)宽吸收线区的紫外吸收物质的柱密度比原来预计高出2个量级，低电离吸收线形成于饱和的高电离吸收线区；(2)射电宁静的宽吸收类星体吸收物质主要在赤道面，并且不同的源吸收物质分布情况很不相同，而在射电强的类星体中，赤道和极向外流都是可能的；(3)共振散射线偏振表明，外流物质携带角动量。

Seeing that the regression equations with high correlation coefficient among redshifts, apparent magnitude and D have been established, it may be true that the redshift of these quasars is ma...

由于红移，视星等及D之间存在着相关系数较高的回归关系，所以，这种类星体的红移可能主要是宇宙学的。

In the early universe, collisions—and hence quasars—occurred more often because galaxies were packed much more closely together.

在早期宇宙中，星系碰撞以及因此而形成类星体的情况发生得更加频繁，因为当时星系之间的距离要接近得多。

Energy is injected into space by quasars in the form of fast, nonrelativistic particles.

能量是以快速非相对论性粒子的形式由类星体注入空间的。

Less frequently, exotic denizens of deep space would pop up -- blinding quasars and supernovae, flaring up as brightly on the bank of TV screens as entire galaxies.

偶而弹出的充满异国风情的太空深处居民--如整个星系般的类星体和爆发的超新星，会另人目炫地耀亮了所有的电视屏幕。

"The fact that these two quasars don't have dust means our theories aren't broken," Hines said.

这两个类星体没有尘埃的事实意味着我们的理论没有被打破，Hines说。

We describe the results of a search for time variability of the fine structure constant using absorption systems in the spectra of distant quasars.

我们描述了用遥远的quasars谱的吸收系统测到的精细结构常数的时间变化的研究结果。

Relativistic jets are found in many radio-loud quasars and BL Lac objects. We explored the jet formation mechanisms for quasars, and found that the jets may probably be accelerated from the coronae above the disks at least in some active galactic nuclei with strong jets.

许多射电类星体和BL Lac天体已观测到相对论性运动喷流，我们研究了活动星系核的喷流形成机制，我们的结果表明至少部分活动星系核的喷流是从吸积盘的冕区被加速的。

We summarize the observational and theoretical studies of quasars, and present the results of our studies on the Doppler redshifts of quasars.

本文综述类星体的观测和理论研究现状，详细介绍本人在攻读博士学位期间在类星体多谱勒红移方面的研究工作。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了