查询词典 astrophysical

The-in order to get to situations where those equations don't work, we have to consider very extreme astrophysical or cosmological limits.

的，为了获得这些方程的情况下不能正常工作，我们就必须考虑非常极端的天体物理学或宇宙的限制。

Using the theory of radiative capture reaction and combining our department experiment, we investigate two nuclear reactions,〓 and 〓, and calculate the cross sections and astrophysical reaction rate of them.

我们对ANC系数的近似模型无关性给出了一个数学形式理论证明，并结合具体的核反应，利用数值计算验证了ANC系数的近似模型无关性；在E1跃迁情况下，我们给出了一个用ANC系数计算辐射俘获反应截面的计算公式。

of Theoretical Physics and the physical nature and targets of the disciplinary procedures. In 1859, according to Kirchhoff solar spectra and thermodynamic interpretation of Fraunhofer lines, asserted that the sun and Earth-like existence, in some chemical element, indicating that can be used in theoretical physics, experimental results from the universal laws of astronomical objects to the inherent nature of the astrophysical theory of the beginning.

利用理论物理方法研究天体的物理性质和过程的一门学科。1859年﹐基尔霍夫根据热力学规律解释太阳光谱的夫琅和费线﹐断言在太阳上存在著某些和地球上一样的化学元素﹐这表明﹐可以利用理论物理的普遍规律从天文实测结果中分析出天体的内在性质﹐是为理论天体物理学的开端。

All the stars are made of plasma, and even the space between the stars is filled with a plasma, albeit a very sparse one (See astrophysical plasma , interstellar medium and intergalactic space ).

所有的星级是血浆，甚至之间的空间星级充满了等离子体，尽管是一个非常稀疏（见天体物理学等离子，星际介质和星际空间）。

To solve the s-process network equation under general conditions and to create the corresponding computation code, 2.The input data base, 3. The neutron source of s-process and the neutron number density, 4. Combining the s-process heavy elements network and neutron source with the astrophysical site.

研究的内容主要是以下几个方面的问题：1、一般情况下的s－过程核反应网络方程的求解及相应计算程序的建立；2、输入数据库的建立；3、s－过程中子源问题的研究，中子数密度的计算；4、将s－过程重元素核反应网络、中子源研究与发生s－过程的天体环境结合起来。

A study of the newly discovered neutron star will be detailed in an upcoming edition of the Astrophysical Journal.

有关这颗新发现的中子星，研究人员将情况详尽地记录在即将出版的《天体物理学杂志》上。

Some mechanism is renewing Charon's surface, and cryovolcanism is the most probable of the possible mechanisms, write Jason Cook, Steven Desch, Ted Roush, Chad Trujillo, and Tom Geballe in a paper they published this week in The Astrophysical Journal.

Jason Cook， Steven Desch， Ted Roush， Chad Trujillo， and Tom Geballe 在《天体物理学期刊》的一篇论文中写道："某些机制在更新喀戎的表面，火山作用是最有可能的机制。"

My flash drive has my paper on astrophysical probes of M-theory effects in the early universe that I was going to give to George Smoot at the conference.

我的闪存里存着我的论文，关于天体物理学的 M 理论对早期宇宙探索的影响。我打算在研讨会上给 George Smoot 看的。

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。

Other authors include Daniel Apai of the Space Telescope Science Institute, Baltimore, Md.; Kevin Luhman of Pennsylvania State University, University Park; Thomas Henning and Jeroen Bouwman of the Max Planck Institute for Astronomy, Germany; Michael Meyer of the University of Arizona, Tucson; Fred Lahuis of the SRON Netherlands Institute for Space Research, the Netherlands; and Antonella Natta of the Arcetri Astrophysical Observatory, Italy.

其他论文作者：马里兰州巴尔的摩市太空望远镜科学研究所的丹尼尔·Apai；宾西法尼亚州立大学的凯文·Luhman；德国马克士普朗克天体物理研究所托马斯·亨宁和Jeroen·Bouwman；图森市亚利桑那大学的迈克尔·梅耶尔；荷兰尼德兰空间研究协会的弗雷德·拉豪斯；意大利佛罗伦斯市雅赛墔天体物理观测站的Antonella·纳塔等。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。