摘要
将一个新理论———正、负能谱(PNES)热力学理论应用于白矮星系统的力学平衡问题,对白矮星初期演化阶段的力学平衡进行了详细的分析.虽然应用PNES热力学理论所得出的结论与原有的理论结果一致.但是PNES理论的基本原理和思路与原有的理论完全不同,按照原有理论,白矮星系统只是一种电子系统,氦离子系统只被视为约束电子系统的外部约束条件.显然原有理论不能反映白矮星的实际状态,因为白矮星并不是一个电子系统而是一个由电子子系和氦离子子系组成的复合系统.因此,对白矮星的力学平衡问题和演化问题都必须以由电子子系和氦离子子系组成的复合系统来进行研究.本文应用这一新理论(PNES热力学理论),以复合系统的观点研究了白矮的力学平衡问题.
Applying the new theory-the positive and negative energy spectrum (PNES) thermodynamical theory to the mechanical equilibrium of white dwarf stars, the mechanical equilibrium of white dwarf star at early stage has been analysed carefully. Although the conclusion of PNES thermodynamical theory is consistent with the conclusion of the original theory, but the fundamental principle and the train of thought in PNES theory is quite different from the original theory. According as the original theory has regarded the white dwarf star system is a electron system alone, the helium-ion system is only looked as a external condition that the electron system is restricted. Obviously, that the original theory can't reflects the practical state of white dwarf stars, because the white dwarf star (isn't) a electron system but a composite system which is composed of the electron sub-system and helium-ion sub-system. Therefore, The mechanical equilibrium problem and the evolution problem of white dwarf star must be engaged in research of the composite system composed of the electron sub-system and helium-ion sub-system. This article employ the new theory (PNES thermodynamics theory) in the point of view of the composite system to study the mechanical equilibrium of white dwarf stars.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2003年第5期706-709,共4页
Journal of Southwest China Normal University(Natural Science Edition)
