Physics
Scientific paper
Feb 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997r%26qe...40...93d&link_type=abstract
Radiophys. Quantum Electron., Vol. 40, No. 1 - 2, p. 93 - 102
Physics
Neutron Stars: Gamma Rays, Neutron Stars: Radiation Mechanisms
Scientific paper
The spectral evolution of the soft (⪉1 MeV) gamma-ray radiation of neutron stars in a strong magnetic field (B ⪆ 6×1012G) is analyzed. It is shown that the radiation transfer equation for the photon splitting cascade has a one-parameter set of self-similar solutions whose integral expansion is an efficient method for study of the general solution. An arbitrary initial spectrum converges quickly to a self-similar solution provided that most of the radiation energy is concentrated in the hard spectral range. The authors consider the possible observational consequences of the photon splitting, including the polarization and softening of the output spectrum as well as the occurrence of a spectral break and condensation of all hard-energy radiation near that break.
Derishev Evgeny V.
Kocharovsky Vitaly V.
Kocharovsky Vl. V.
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