Structure of ADAFs in a general large-scale B-field:the role of wind and thermal conduction

作     者：Amin Mosallanezhad Mehdi Khajavi Shahram Abbassi 

作者机构：Center for Excellence in Astronomy & Astrophysics (CEAA-RIAAM) School of PhysicsDamghan University Department of PhysicsSchool of SciencesFerdowsi University of Mashhad School of AstronomyInstitute for Research in Fundamental Sciences 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2013年第13卷第1期

页      面：87-98页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 070401[理学-天体物理] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 

主　　题：accretion: accretion flow    wind: outflow    thermal conduction 

摘      要：We have explored the structure of a hot flow bathed in a general large-scale magnetic field. The importance of outflow and thermal conduction on the self-similar structure of a hot accretion flow has been investigated. We consider the additional 2 2 2 magnetic parameters are the Alfv6n sound speeds in three directions of cylindrical coordinates. In comparison to the accretion disk without winds, our results show that the radial and rotational velocities of the disk become faster, but the disk becomes cooler because of the angular momentum and energy flux which are taken away by the winds. Moreover, thermal conduction opposes the effect of winds and not only decreases the rotational velocity but also in- creases the radial velocity as well as the sound speed of the disk. In addition, we study the effect of the global magnetic field on the structure of the disk. Our numerical re- suits show that all the components of a magnetic field can be important and they have a considerable effect on velocities and vertical structure of the disk.