Pitch Angle Sca2tering of Cometary Ions into Monospherical and Bispherical Distributions
نویسندگان
چکیده
Low frequency magnetic fluctuations generated by solar wind/cometary ion distributions cause pitch-angle scattering of cometary ions. The nature of this pitch angle scattering is examined by means of one-dimensional hybrid simulations, in which newborn ions are created at a constant rate, and for various injection angles, o•, relative to the magnetic field. Pitch angie scattering in the quasiperpendicular regime (o•>60 ø) results in a bispherical velocity distribution while in the quasi-parallel regime (0_<or<60ø), pitch angle scattering can result in either a mono or bispherical distribution depending on the injection angle and initial beam velocity.
منابع مشابه
Pii: S0022-4073(02)00191-7
The T-matrix is used to calculate the extinction cross section of bispherical particle systems in random orientation for a monospherical size parameter x = 0:01. Di6erences between bispherical and monospherical (Mie) results are shown for a range of values of the refractive index. It is found that the size of the T-matrix that needs to be calculated can be large, thus preventing simple dipole a...
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