
doi: 10.1007/bf00683350
A variational technique has been developed to study the stability of the radiation field in a cylindrical homogeneous interstellar maser with steady state pumping. A dynamical potential has been constructed, the extremal of which gives the radiative transfer equations and rate equations. The dispersion equations and the stability criteria are determined from the potential for specific natures of perturbations.
stability criteria, rate equations, transfer equations, dispersion relations, Stability and instability of geophysical and astrophysical flows, cylindrical homogeneous interstellar maser, perturbations around steady state or state of dynamical equilibrium, Radiative transfer in astronomy and astrophysics, extremal of dynamical potential, Ionized gas flow in electromagnetic fields; plasmic flow, steady state pumping, Variational principles of physics
stability criteria, rate equations, transfer equations, dispersion relations, Stability and instability of geophysical and astrophysical flows, cylindrical homogeneous interstellar maser, perturbations around steady state or state of dynamical equilibrium, Radiative transfer in astronomy and astrophysics, extremal of dynamical potential, Ionized gas flow in electromagnetic fields; plasmic flow, steady state pumping, Variational principles of physics
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