Propagation of electromagnetic waves in space plasma
  Coherent Raman Effect on Incoherent Light (CREIL), shifts the frequencies of normally incoherent light without any blurring of the images or altering the order of the spectra. CREIL operates in gases having quadrupolar resonances in the megaherz range, and it is easily confused with Doppler effects. When CREIL is taken into account, the propagation of light in cosmic low pressure gases involves a complex combination of absorptions and frequency shifts. Current star theory predicts very bright accreting neutron stars. These should be small, very hot objects surrounded by dirty atomic hydrogen. CREIL predicts spectra for these stars that have exactly the characteristics found in the spectra of the quasars. The intrinsic redshifting in the extended photosphere of Quasars as defined by CREIL events drastically reduces both the size and distance to quasars, and clearly identifies the missing neutron stars as quasar-like objects. A full interpretation of quasar spectra does not require jets, dark matter, a variation of the fine structure constant, or an early synthesis of iron. CREIL is useful in explaining other astrophysical problems, such as redshifting proportional to the path of light through the corona of the Sun. CREIL radiation transfers may explain the blueshifting of radio signals from Pioneer 10 and 11. 
Jerry Jensen & Jacques Moret-Bailly