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astro-ph2000
Pressure- and magnetic shear- driven instabilities in rotating MHD jets
Evy Kersale, Pierre-Yves Longaretti, Guy Pelletier
We derive new stability criteria for purely MHD instabilities in rotating jets, in the framework of the ballooning ordering expansion. Quite unexpectedly, they involve a term which…
astro-ph1996
Lens reconstruction and source redshift distribution
Pierre-Yves Longaretti
The currently used linear and nonlinear lens inversion techniques are based on distortion estimators whose complicated source redshift dependence makes the influence of the redshif…