Magnitudes of Bremsstrahlung and Cyclotron Cooling From on-Axis Accretion Shocks onto AM-Her Systems

The article presents a calculation of relative phases and relative magnitudes for bremsstrahlung and cyclotron emissions from radiative accretion shocks onto binary Magnetic CVs (AM-Her systems). The calculation is carried out for a 0.3 solar mass white dwarf primary star, having a field B* = 30MG , and accretion rate of Lacc = 3.2x10^-3 LEdd. Here LEdd is the Eddington accretion luminosity. Individual on-axis accretion funnels are investigated corresponding to large radii at which field lines strike the equatorial plane ( a0 ≡ req /R* = 500, 300, 300, 200, 150, 100, and 80 ). Results show a relatively low level cyclotron cooling, and thus permit decoupling.