%0 Journal Article
%T Second-Order Resonant Interaction of Ring Current Protons with Whistler-Mode Waves
%A XIAO Fu-Liang
%A CHEN Liang-Xu
%A HE Hui-Yong
%A ZHOU Qing-Hua
%A <br>肖伏良
%A 陈良旭
%A 贺慧勇
%A 周庆华
%J 中国物理快报
%D 2008
%I 
%X We present a study on the second-order resonant interaction between the ring current protons with Whistler-mode waves propagating near the quasi electrostatic limit following the previous second-order resonant theory. The diffusion coefficients are proportional to the electric field amplitude E, much greater than those for the regular first-order resonance, which are proportional to the electric field amplitudes square E^2. Numerical calculations for the pitch angle scattering are performed for typical energies of protons Ek = 50 keV and 100 keV at locations L = 2 and L = 3.5. The timescale for the loss process of protons by the Whistler waves is found to approach one hour, comparable to that by the EMIC waves, suggesting that Whistler waves may also contribute significantly to the ring current decay under appropriate conditions.
%K 94
%K 20
%K Rr
%K 52
%K 35
%K Hr
%K 94
%K 30
%K Jp
%K 94
%K 20
%K Qq<br>惠斯勒波
%K 环电流
%K 质子
%K 二阶共振相互作用
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=A7D56D9C980F9CC9960333DA797679C5&yid=67289AFF6305E306&vid=C5154311167311FE&iid=CA4FD0336C81A37A&sid=50EA2A80A7D254EF&eid=5A6705FDACED0BF9&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=24