Thermal cyclotron and annihilation radiation in strong magnetic fields

摘要

The cyclotron and the one-photon annihilation emissions are investigatedfor a strongly magnetized thermal electron-positron plasmas. The anni-hilation spectral component is significant when the particle number den-sity N exceeds some critical value, NCr(T, B). For T 108 - 109 K andB t~10~(12)- 13)G, this condition can be fulfilled atN <22)cm~(-3), whichis realistic for neutron star magnetospheres.