Theoretical Research in Nuclear Astrophysics

开展核天体物理理论研究项目。具体的研究领域将包括研究核物理、经典新星和相关现象、核合成、星系化学演化和球状星团的起源。需要解决的主要问题包括：(1)确定与各种天体物理研究相关的热核反应和弱相互作用速率；(2)电子筛选一般情况分析；(3)突出经典新星超eddington演化阶段的控制物理分析；(4)已知大多数经典新星在爆发中所经历的共同包络演化阶段的可能后果；(5)热白矮星的高吸积率引发爆发的性质；(6)伴随经典新星爆发的核合成，包括放射性物质钠22 （22Na）和铝26 （26Al）的产生；(7)低初始金属丰度大质量恒星中硅燃烧的后果；(8)高中子物质膨胀和冷却过程中r过程的操作；(9)红巨星s-过程核合成；（10）核宇宙年代学；（11）星系中锂丰度的演化；（12）缺金属恒星的丰度对早期星系化学演化的意义；（13）银河系球状星团的起源和早期演化的性质。

A theoretical research program in nuclear astrophysics will be carried out. Specific areas of study will include investigations in nuclear physics, classical novae and related phenomena, nucleosynthesis, galactic chemical evolution, and the origin of globular clusters. Major problems to be addressed include: (1) the determination of thermonuclear reaction and weak interaction rates relevant to diverse astrophysical studies; (2) the analysis of the general case of electron screening; (3) an analysis of the controlling physics of the super-Eddington phase of evolution of classical novae in outburst; (4) the possible consequences of the phase of commom envelope evolution that is known to be experienced by most classical novae in outburst; (5) the nature of outbursts triggered by high accretion rates onto hot white dwarfs; (6) nucleosynthesis accompanying classical nova outbursts, including the production of the radioactivities sodium 22 (22Na) and aluminum 26 (26Al); (7) the consequences of silicon burning in massive stars of low initial metallicities; (8) the operation of the r-process in the expansion and cooling of highly neutronized matter; (9) s-process nucleosynthesis in red giant stars; (10) nuclear cosmochronology; (11) the evolution of the lithium abundance in the galaxy; (12) the implications of abundances in metal deficient stars for early galactic chemical evolution; and (13) the nature of the origin and early evolution of the Milky Way globular clusters.