恒星大气 meaning in Chinese
stellar atmosphere
Examples
- A point worth emphasizing is that hydrostatic equilibrium is fulfilled with great accuracy in stellar atmosphere .
值得强调指出，在恒星大气中，流体静力平衡是非常精确地成立的。 - The reason is very simple . the density in the stellar and interstellar environment is extremely low , lower than any vacuum conditions that we can create in the laboratory . such conditions are a far cry from the hot , dense environment in the great depths of the earth where diamonds are formed
理由很简单，恒星大气和星际间环境的密度远比任何实验室能制造出来的真空为低，这和地球深处又热又高密度的环境有著天渊之别，又怎可能制造出钻石？ - From the past research work , it has been known that the main mechanisms of spectral lines broadening in the atmospheres of stars are doppler broadening , spectral lines broadening by rotation and expending , pressure broadening ( stark broadening ) , natural broadening , spectral lines broadening in magnetic field , sonic waves and alfv e n waves broadening , etc . but it is not enough to explain the recent observation phenomena by above theories of spectral lines broadening
以往的研究已经判明，在恒星大气内谱线致宽的主要机制是多普勒致宽、自转源或膨胀源引起的致宽、压力致宽(斯塔克致宽) 、自然致宽、磁场引起的加宽、声波及阿尔文波致宽等。然而，已有的谱线致宽理论不足以解释最近的一些观测现象，仍存在观测值与理论值之间的差异。 - Because the photospheric temperature of carbon stars are less than 3000k and the temperature of rich - dust envelope formed by the mass loss is lower , and therefore most of the energy from carbon stars are radiated between 1 to 60um range , in which the vibrational and ro - vibrational bands of many molecules also lies , the study of infrared spectra in this wavelength range is very important to reveal chemical compositions , dust formation process , the atmospheric structure and evolutionary status of stars
碳星光球的有效温度不超过3000k ，同时较大的质量损失率形成了富碳的尘埃壳层，以致于它的辐射能量主要集中在1 ? 60 m的红外波段上，并且许多分子的转动振动能谱也集中在红外，因此在红外波段的研究对揭示碳星化学成份及其分布、尘埃形成过程、恒星大气结构和演化状态都有十分重要的意义。