摘要
详细讨论了吸积盘中的磁场放大过程-dynamo(发电机)机制,并利用dynamo机制拟合黑洞双星谱态转变的时标.在磁场没有被放大之前,经典薄盘对应的谱态是热态,当大尺度磁场形成之后,经典薄盘演化为磁化吸积盘,其对应的谱态演化为陡幂律(SPL)态.
This paper discusses a process of dynamo for amplifying magnetic fields in accretion disks, and fits the time scale of state transition in black hole binaries. A classic thin disk is invoked to fit the thermal-dominant （TD） state in the binaries before the magnetic field is amplified, and it evolves to steep power-law （SPL） state after large scale magnetic field is formed.
出处
《中南民族大学学报（自然科学版）》
CAS
2009年第2期61-64,共4页
Journal of South-Central University for Nationalities：Natural Science Edition
基金
国家自然科学基金资助项目(10873005
10847127)
关键词
黑洞
吸积盘
磁场
态转变
black hold
accretion disk
magnetic field
state transition
