电四极辐射[Electric Quadrupole Radiation] - 达人(其实～我是卧底，来自外星)

2005/07/12 | 电四极辐射[Electric Quadrupole Radiation]
类别(Ω〖物理〗) | 评论(0) | 阅读(50) | 发表于 21:37: The specific power (power per unit solid angle) emitted by the quadrupole term in cylindrically symmetrical electric multipole radiation is given in cgs by
(1)

where c is the speed of light, k is the wavenumber, is the nonzero term in the electric quadrupole moment,and is the angle from the z-axis. Integrating over all angles gives the total radiated power as

(2)

For a general electric quadrupole moment, the total power emitted in
(3)

Letting be a normal vector in the direction of the z-axis, the power radiated per solid angle is
(4)

and the (complex) magnetic field is given by
(5); 0