总星系的泡沫结构与泡膨胀的动力学  

Foam Structure of Metagalaxy and Dynamics of Bubble Expansion

作　　者：张德荣[1] 

机构地区：[1]沈阳航空航天大学,沈阳110136

出　　处：《科学技术与工程》2012年第11期2537-2542,共6页Science Technology and Engineering

摘　　要：试图表明如将与宇宙常数有关的真空能考虑在内,就可利用牛顿力学的数学框架,将引力相互作用分为三个类型和两种表现如下:物质对物质——吸引,物质对真空——排斥,真空对真空——排斥。据此,得出了鉴别天体系统是处于膨胀状态还是处于收缩状态的一个判据。然后讨论了引力相互作用的三个类型和两种表现在总星系泡沫结构形成中的作用。认为真空能量(暗能量)扮演了起泡剂的角色。最后导出了泡膨胀的动力学方程,并对有关参数和问题进行了估计和讨论。Tried to indicate that if taking into consideration of the vacuum energy concerned with the cosmological constant,the gravitational interaction can be classified in three types and two performances by the use of the mathematic framework of Newtonian mechanics,i.e.matter to matter-attraction,matter to vacuum-repulsion,vacuum to vacuum-repulsion.Based on it,a criterion that may identify if the celestial system is in an expansion state or in a contraction state has been found.The contributions of three types and two performances of the gravitational interaction to evolution of the metagalactic foam structure are discussed,and the vacuum energy（dark energy）is considered to play the role of the foamer.The dynamics equations of the bublle expansion are derived,and some parameters and problems concerned are estimated and discussed.

关 键 词：引力相互作用 真空能 总星系 膨胀 泡沫结构 

分 类 号：P138.1[天文地球—天体力学]