查询词典 an array of stars

Our abundance analysis, which followed standard prescriptions for stellar models, spectral synthesis code and stellar parameter determination12, confirm the peculiar behaviour of Li in the effective temperature range 5600–5900 K for the 30 planet-bearing stars with respect to the 103 stars without planets in the comparison sample.

通过对恒星模型、光谱合成辨认、以及恒星参数的确认（参考文献12）等大量分析后，在有效温度介于5600~~5900K的30颗"有行星"恒星与103颗"无行星"恒星的实验对照组中，我们可以确定锂元素的确表现出独特的性质。

You see a lot of huge stars in world, action stars, Stallone, Arnold, they will get old one day.

你看到很多世界上的大明星、动作明星，史泰龙、阿诺，他们也有一天会老。

These stars are part of the IC348 star cluster, which consists of over 300 known member stars.

这些星体的一部分，该ic348星簇，其中包括300多名知名会员星级。

Usually only the brightest, bluest, most massive stars in a star forming region are visible, but the above image was taken in such high resolution and in such specific colors that many recently formed stars that are more yellow, more dim, and less massive are also discernable.

通常情况下只有那些最蓝的，质量最大的恒星才在恒星形成区中可见，但是以上的照片有着如此之高的空间分辨率和颜色精度，以至于许多不久前形成的比较偏黄色的比较暗淡的并且质量比较小的恒星也被辨识出来。

The Navy authorizes display of three silver stars and four bronze stars on the streamer representing 19 operations.

海军授权的代表19日行动的横幅3银星和4枚铜牌星显示。

The red ones are supergiant stars and the blue ones are young stars.

红色的是超巨星，蓝色的是年轻的恒星。

Tauri stars are now generally recognized as young (less than a few million years old), sun-like stars still in the early stages of formation.

型变星通常是年龄不到数百万年的年轻类太阳恒星，还处在恒星形成的初期阶段。

Over 400 light-years away, at the edge of a molecular cloud , both star and nebula are seen to vary significantly in brightness but not necessarily at the same time, adding to the mystery of the intriguing region. T Tauri stars are now generally recognized as young -- less than a few million years old -- sun-like stars still in the early stages of formation .

它们的 观测亮度会有大幅度的变化，不过不一定会同步，而这也是此区域的谜团之一。T型变星通常是年龄不到数百万年的年轻类太阳恒星，还处在恒星形成的初期阶段。

The theory of accretion disks are important for many astrophysical phenomena, including Quasars, active galatic nucleic, X-ray binary stars, and young stellar objects. The most important branch of accretion djsk theory is the stability properties of djsks. It is widely considered that the luminosity variations of various astronomical objects are associated with the instability of accretion disk. The viscosity plays an important role in the accretion disk theory, and magnetic field exists commonly in astronomical phenomena. A more realistic analysis of the stabihty of the accretion disk should include both the radjal and azimuthal perturbations because of the strong shear of viscous flow.In this paper, according to the luminosity Variations of Various astronomical objects, we study the radial-azimuthal instability of an isothermal with magnetic field. We find that the radial and azimuthal fields B〓,B〓 are mainly responsible for enhancing the instability of the magneto-acoustic modes and non-axisymmetric modes,and that pulsational oscillations are larger in the radial than in the Z direction. The model may be useful in explaining the periodic light variation of FU orionis and. T Tauri stars.

在许多天体物理现象中，例如活动星系核，X-射线双星和年青的恒星理论中，吸积盘理论起着重要的作用，而吸积盘理论中的一个重要分支是吸积盘的不稳定性理论，普遍认为活动天体的周期，准周期光变现象与吸积盘的不稳定性有关，在吸积盘理论中，粘滞起着重要的作用，而磁场是天体物理中普遍存在的现象，对于几何薄吸积盘不稳定性分析，由于强剪切流的缘故，应该包括径向和环向扰动两个方面，本文结合天体物理中的各种周期，准周期光变现象，研究了含磁场的等温薄吸积盘的径向-环向振荡不稳定性，结果表明：磁场的径向和环向分量对磁声模和非轴对称模的不稳定性的增加起着主要的作用，且径向振荡大于轴向振荡，所得结果有利于解释FU Orionis和T Tauri Stars的周期光变现象。

We figure out the telescope mount parameters by observing stars with CCD, and establish a measurement system, including CCD and image acquisition card to collect stars'image data, time and frequency system (made up of high accuracy counter, the GPS second signal and 10MHz frequency standard), the observing software in VC++6.0 for collecting and processing star image and the image processing software programmed with MATLAB.

建立了一套用于测定望远镜机架指向误差模型参数的系统，包括：CCD 及图像卡等硬件系统用于采集恒星图像数据；使用高精度的计数器、GPS 提供的秒信号和标准10MHz信号开发了用于观测软件的时间频率系统；使用VC++6.0 编制了包括用于计算恒星位置及图像采集和处理的观测程序，并用MATLAB编制了用于处理观测数据的程序。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。