黑洞边际稳定轨道内的磁性吸积
天体物理学
2009-10-31 v1
摘要
Qualitative arguments are presented to demonstrate that the energy density of magnetic fields in matter accreting onto a black hole inside the marginally stable orbit is automatically comparable to the rest-mass energy density of the accretion flow. Several consequences follow: magnetic effects must be dynamically significant, but cannot be so strong as to dominate; outward energy transport in Alfven waves may alter the effective efficiency of energy liberation; and vertical magnetic stresses in this region may contribute to "coronal" activity.
引用
@article{arxiv.astro-ph/9902267,
title = {Magnetized Accretion Inside the Marginally Stable Orbit around a Black Hole},
author = {J. H. Krolik},
journal= {arXiv preprint arXiv:astro-ph/9902267},
year = {2009}
}
备注
to appear in Ap. J. Letters