恒星

Here we report Li abundances for an unbiased sample of solar-analogue stars with and without detected planets.

我们的报告中有关锂丰度的样本真实可靠，样本中既含有&有行星&恒星同时具有&无行星&恒星。

He suggested the following figures should be multiplied: how many stars are formed in the galaxy in a year; what fraction of these have planets and thus form solar systems; the average number of planets per solar system that have the potential to support life; on what percentage of those where it is possible do such biospheres actually form; what percentage of such biospheres give rise to intelligent species; what percentage of intelligent life is able to transmit signals into space; and for how long could such intelligence keeps sending signals.

他的方法包括一系列应该纳入考虑范围的数据：银河系每年新诞生的恒星数；拥有行星并组成了星系的恒星比率；有可能会出现生命迹象的行星平均数；以上行星能够真正孕育生命的比率；演化出了智能物种的比率；能使用无线电通讯与外太空联系的智能生物比率；智能生物使用无线电通讯方式的持续时间。更多信息请访问： http：//www.24en.com

He suggested the following figures should be multiplied: how many stars are formed in the galaxy in a year; what fraction of these have planets and thus form solar systems; the average number of planets per solar system that have the potential to support life; on what percentage of those where it is possible do such biospheres actually form; what percentage of such biospheres give rise to intelligent species; what percentage of intelligent life is able to transmit signals into space; and for how long could such intelligence keeps sending signals.

他的方法包括一系列应该纳入考虑范围的数据：银河系每年新诞生的恒星数；拥有行星并组成了星系的恒星比率；有可能会出现生命迹象的行星平均数；以上行星能够真正孕育生命的比率；演化出了智能物种的比率；能使用无线电通讯与外太空联系的智能生物比率；智能生物使用无线电通讯方式的持续时间。

This spectacular nebula is energised by an exceptionally high concentration of massive stars, often referred to as super star clusters.

这个壮观的星云由内部一群高度密集的大质量恒星照亮，这些恒星群一般归类于超级星团（话说我只知道球状星团和疏散星团，这个算什么星团？

This galaxy harbours exclusively old stars and shows no sign of any recent star formation.

这个星系几乎全部是老年恒星，当前没有任何恒星诞生的迹象。

Weighing in at nearly 10 Jupiter masses, the planet circles at a distance of .04 Astronomical Units from its host star, TW Hydrae, in the constellation Hydra.

该行星质量相当于近10颗木星，在0.04天文单位处围绕其主恒星旋转。这颗主恒星叫做& TW 海德里&，位于长蛇座。

Gum 29, named for it being the 29th entry in astronomer Colin Stanley Gum's catalogue, is a vast region of ionised hydrogen gas that spans over 200 light years.

Gum 29恒星团拥有巨大的氢气区域，是由位于中心位置的炽热年轻恒星强辐射电离电子形成的。

For example, if the working wavelength range is reduced from 300~1100 nm to 400~800 nm, the single star position errors will be 0.0422"1.9652" and 3.3891 when the field view are (0°, 0°),(0°, 2°) and (0°, 4°) correspondingly, which are about 54%65%and 70%of the original errors. And the spot intensities are about 58%, 62%, 63% and 51% of the original when color temperatures of star are 9600 K, 7600 K, 5600 K and 3600 K correspondingly

例如，当响应波长从300~1100nm减小为400~800nm时，星敏感器视场(0°，0°)、(0°，2°)和(0°，4°)处的单颗恒星定位误差分别减小为0.0422&、1.9652&和3.3891，约为原来的54%、65%和70%；色温为9600K、7600K、5600K和3600K的恒星像斑能量分别约为原来的58%、62%、63%和51%。

The research history about Doppler imaging of stellar surface structure was looked back, and its application in the late-type star with sun-like activity was reviewed.

回顾了恒星表面结构多普勒成像研究工作的发展历史，重点评述了该项技术在类太阳活动恒星研究领域的应用。

In this dissertation, we report spectral line observations of CO molecularof massive star forming regions and circumstellar SiO masers, using the 13.7 mmillimeter wave telescope at Qinghai station of Purple Mountain Observatory,China and Very Long Baseline Array of National Radio AstronomyObservatory, USA, respectively.

本篇论文利用中国紫金山天文台青海观测站的13.7米口径毫米波望远镜和美国国立射电天文台的甚长基线干涉阵对大质量恒星形成区的CO分子和恒星SiO脉泽进行了谱线的观测与研究。

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