Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975ap%26ss..35..363l&link_type=abstract
Astrophysics and Space Science, vol. 35, July 1975, p. 363-388.
Astronomy and Astrophysics
Astrophysics
1
Light Transmission, Pulsar Magnetospheres, Pulsars, Quasars, Radiative Transfer, Stellar Atmospheres, Wave Amplification, Astronomical Models, Energy Conversion, Monochromatic Radiation
Scientific paper
Calculations are presented which are relevant to the problem of radiative transport in pulsar magnetospheres and quasar envelopes, where relativistic particle speeds are expected as well as variations in refractive index with position and frequency. It is shown that transmitted radiation can be easily spread out in frequency and a higher total intensity can be obtained by shining monochromatic light normally onto an interface between two media of different refractive indices. Two idealized examples are considered to illustrate this parametric conversion and amplification process. The results indicate that the production of broadband high-intensity radiation from relatively weak monochromatic light is a process likely to occur in most astrophysical objects where rapid motions and spatial variations are believed to take place.
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