Magnetically warped discs in close binaries
天体物理学
2009-11-07 v1
摘要
We demonstrate that measurable vertical structure can be excited in the accretion disc of a close binary system by a dipolar magnetic field centred on the secondary star. We present the first high resolution hydrodynamic simulations to show the initial development of a uniform warp in a tidally truncated accretion disc. The warp precesses retrogradely with respect to the inertial frame. The amplitude depends on the phase of the warp with respect to the binary frame. A warped disc is the best available explanation for negative superhumps.
引用
@article{arxiv.astro-ph/0204518,
title = {Magnetically warped discs in close binaries},
author = {James Murray and Dalia Chakrabarty and Graham Wynn and Louisa Kramer},
journal= {arXiv preprint arXiv:astro-ph/0204518},
year = {2009}
}
备注
11 pages, 10 figures, MNRAS accepted