A note on the collisionless high-$\beta$ space-plasma mirror mode

The linear threshold condition of the mirror mode including weak drift and finite Larmor radius effects is analysed and shown that it can be given to arbitrary precision in closed analytical form. From the dispersion relation two different modes can be identified, one the positive energy mirror mode, the other a negative energy mode which grows {\it below} the positive energy mirror mode threshold and thus is complementary to the ordinary drift-mirror mode. It propagates obliquely to the magnetic field under a limited cone angle.

@article{id1368,
  author = {Treumann, R. A.},
  journal = {arXIV [physics-space]},
  language = {en},
  pages = {arXiv:0902.1710v1},
  title = {A note on the collisionless high-\${\textbackslash}beta\$ space-plasma mirror mode},
  year = {2009},
}

%O Journal Article
%A Treumann, R. A.
%J arXIV [physics-space]
%G en
%P arXiv:0902.1710v1
%T A note on the collisionless high-$\beta$ space-plasma mirror mode
%D 2009