Radiatively Driven Winds from Effective Boundary Layer around Black Holes

Journal of astrophysics and astronomy

Sandip K. Chakrabarti1¹  Indranil Chattopadhyay1¹ 

[1] S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Kolkata 98.$$

关键词: Accretion;    accretion disc;    black hole physics;    winds;    outflows.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

Matter accreting onto black holes suffers a standing or oscillating shock wave in much of the parameter space. The post-shock region is hot, puffed up and reprocesses soft photons from a Keplerian disc to produce the characteristic hard tail of the spectrum of accretion discs. The post-shock torus is also the base of the bipolar jets. We study the interaction of these jets with the hard photons emitted from the disc. We show that radiative force can accelerate outflows but the drag can limit the terminal speed. We introduce an equilibrium speed 𝑣eq as a function of distance, above which the flow will experience radiative deceleration.

【 授权许可】

Unknown