脉冲星

The correlation between short period and weak magnetic field of binary pulsar and millisecond pulsar implies that these pulsars are the recycled pulsars of existing binary accretion process.

双星脉冲星和毫秒脉冲星的短周期和弱磁场相关性暗示这些脉冲星是存在双星吸积过程的反加速脉冲星。

The Crab Nebula spans about 10 light-years. In the nebula's very center lies a pulsar: a neutron star as massive as the Sun but with only the size of a small town. The Crab Pulsar rotates about 30 times each second

整个蟹状星云跨越约10光年，在其正中心存在一脉冲星---有太阳一样的质量但体积只有小镇大小的中子星，蟹状星云脉冲星的自转速度约为30圈每秒。

A pulsar is a celestial object that emits light in short burst a pulsar in the crab nebula flashes at a rate of 30 times/s,suppose the light pulses are caused by the rotation of a spherical object that emits light from a pair of diametrically opposed "flashlights" on its equator.

脉冲星是一种以短爆发形式辐射光的天体。假设球型天体赤道面上有一对"发光塔"，并且这对发光塔的联线构成赤道面的直径，进一步假设光脉冲产生于球形天体的转动，那么巨蟹座星云中的一个脉冲星的闪光频率是每秒30次。

With the energy equilibrium, we obtain therelations of oblateness e, period P, period derivation〓,surface magnetic field B, averge density ρ, and the evolutions of those quantities.

但对高速自转的脉冲星(如超新星1987A中0.5毫秒脉冲星)，由于自转的作用而成为扁形的椭球体，此时星体的形变能量就会起很大作用。

Pulsar B is an oddity, in that it is very different from a 'normal' pulsar.

脉冲星B比较怪，与"正常"的脉冲星很不同。

The"not escaped"pulsars of each group whose simulated projective places on to the Galactic plane lie in the range 0＜r＜25 kpc and 5＜r＜11 kpc from the Galactic center respectively are selected to make statistics on absolute height |z| distribution to derive the segmental scale height and the cumulative scale height.

对每组中"未逃逸"脉冲星，分别在0＜r＜25kpc和5＜r＜11 kpc两个区域中对|z|分布做了统计，研究了"未逃逸"脉冲星在这两个区域中的分段标高和累积标高的演化特征。

These values are generally in good agreement with the proper motion velocities.

利用这些值并假设散射屏处在近似脉冲星和地球的中间，我们计算了7颗脉冲星的横向速度，这些值和自行速度吻合的很好。

Only for a few pulsars one can estimate their ages with their proper motion data, it is difficult for most pulsars.

对少数几个脉冲星可以利用自行资料来估计其"动力学年龄"，而对绝大多数脉冲星则无法这样做。

In this paper, the significance and achievement of the pulsar observation are introduced.

介绍了脉冲星观测研究的意义，国际上所取得的重大成就和脉冲星观测最主要的技术问题。

Pulsar population synthesis is one of the most important methods to investigate the evolution of magnetic fields.

脉冲星的样本合成研究是研究脉冲星磁场演化的重要方法。

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