• Corpus ID: 116205870

On the Minimum Energy Configuration of a Rotating Barotropic Fluid: A Response to Narayan & Pringle astro-ph/0208161

@article{Fromang2002OnTM,
  title={On the Minimum Energy Configuration of a Rotating Barotropic Fluid: A Response to Narayan \& Pringle astro-ph/0208161},
  author={S{\'e}bastien Fromang and Steven A. Balbus},
  journal={arXiv: Astrophysics},
  year={2002}
}
In a recent posting, Narayan & Pringle (2002, astro-ph/0208161) criticized a paper written by the current authors (Fromang & Balbus 2002, astro-ph/0207561 hereafter FB02). FB02 presented a second order variational calculation and concluded that supersonically rotating barotropic fluids had lower energy states neighboring that of equilibrium. (Note that this is not the same as claiming instability, a point noted explicitly in FB02.) Narayan & Pringle challenged this, presented a specific class…