【摘要】 本文在消光系数κ=κ₀ρ^aT^b的假设下讨论了a粘滞律吸积盘的静态平衡结构,尤其是其压力参数β的分布特征。并由Piran判据出发得到了吸积盘的稳定性条件与消化幂指数（a,b）之间的关系。更多还原

【Abstract】 In general the static sturcture of α—accretion discs is believed to beunstable when pressure parameter β<2/5. Adopting an opacity law of the form k=k₀ρ^aT^b the distribution feature along radius of discs of β—parameter in a static α—accretion disc are discussed and the relation between stability conditions for the static structure of α—accretion discs and power—law exponents （a,b） of opacity law is deriued starting from piran’s criterion.更多还原