Fig. 13From: Nonlinear wave growth theory of whistler-mode chorus and hiss emissions in the magnetosphere(after Hsieh and Omura (2018))Properties of oblique whistler-mode waves. a Angles of group velocity vector \({{\varvec{V}}}_\text{g}\) as functions of frequency for different wave normal angles [after Hsieh and Omura (2017)]. b Difference of phase velocity and group velocity as functions of frequency \(\omega\) and the wave normal angle \(\theta _{kB}\)Back to article page