Systematic Research of Irradiation in Accretion Disks

吸积盘辐射的系统研究

• 批准号: 05640313
• 负责人: FUKUE Jun
• 金额: $ 1.28万
• 依托单位: Osaka-Kyoiku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05640313/
• 关键词: Astronomy; Accretion Disks; Asfnplysicul Jets; Active Galaxies; X-ray stars; Extradynamic Variables; Protoplanetary Disks

We examined the various effects which an accretion disk suffered from irradiation by the central object and/or accretion disk itself. The followings are our main results.(i) The effect of the Compton drag : The angular momentum of the gas is removed via the Compton drag of the radiation fields when the gas is optically thin. This is the new type driving mechanism, we call it the 'beta accretion disk' .(ii) We examined the structure and evolution of such a beta disk in relation to protoplanetary disks, X-ray stars, and AGNs.(iii) We also calculated the emission spectrum from the (relativistic) accretion disk which is irradiated by the central region. The spectrum is remarkably modified.(iv) In order to explain the electron-positron pair annihilation line in X-ray nova, we constructed the model of an accretion disk wind blown off from the disk and calculated the line-emission spectrum.

我们研究了吸积盘受到中心物体和/或吸积盘本身的照射所产生的各种效应。以下是我们的主要结果。(i)康普顿阻力的影响：当气体在光学上很薄时，气体的角动量通过辐射场的康普顿阻力被移除。这是一种新型的驱动机制，我们称之为“β吸积盘”. (ii)我们研究了这种β盘的结构和演化与原行星盘、X射线星和活动星系核的关系。(iii)我们还计算了中心区照射的相对论吸积盘的辐射谱。光谱发生了显著的变化。(iv)为了解释X射线新星中的正负电子对湮灭线，我们建立了吸积盘风从吸积盘吹出的模型，并计算了线发射谱。

项目成果

Mineshige S. et al.: "Time‐Dependent Disk Accretion in X-ray Nora" A-p J.426. 308-312 (1994)

Minoshige S. 等人：“X 射线 Nora 中的时间依赖性磁盘增生”A-p J.426 (1994)。

Yamada T. et al.: "Spectrum of a Relativisho A. D. in AGN" PASJ. 46. 553-557 (1994)

Yamada T. 等人：“AGN 中 Relativisho A.D. 的频谱”PASJ。

Sanbuichi,K.& Fukue,J.: "The Astrophysical Torus II" PASJ. 45. 727-731 (1993)

三分一，K.

Sanbuichi, K., Fukue, J., and Kojima, Y.: "Emission-Line Profiles of Accretion Disks with a Non-Axisymmetric Pattern." Publ.Astron.Soc.Japan. Vol.46, No.6. 605-611 (1994)

Sanbuichi, K.、Fukue, J. 和 Kojima, Y.：“具有非轴对称图案的吸积盘的发射线剖面。”

Umemura M.Fukue J.: "Cosnological Sphericol Accretion via Ext.Rad.Drag" PASJ. 46. 567-574 (1994)

Umemura M.Fukue J.：“通过 Ext.Rad.Drag 进行的宇宙学球体吸积”PASJ。