Energetic Argument for Bimodal Black Hole Accretion discs
作者机构:Department of Physics Xiamen University Xiamen 361005 Service d'Astrophysique CEA/DSM/DAPNIA CE-Saclay 91191 Gif-sur-Yvette France
出 版 物:《Chinese Physics Letters》 (中国物理快报(英文版))
年 卷 期:2002年第19卷第10期
页 面:1562-1564页
核心收录:
学科分类:07[理学] 070401[理学-天体物理] 0704[理学-天文学]
基 金:国家自然科学基金
主 题:Gravitation
摘 要:Based on simple energetic considerations, we show that two crucial ingredients of bimodal black hole accretion discs, namely the sonic point and the transition radius, can be determined from the disc constant parameters. Thus, we can further justify the model of bimodal discs containing thermal instability triggered transition.