2 papers
astro-ph2004
Molecular Hydrogen and [FeII] in Active Galactic Nuclei
Alberto Rodriguez-Ardila, Miriani G. Pastoriza, Sueli Viegas +2
(Abridge) Near-infrared spectroscopy is used to study the kinematics and excitation mechanisms of the H2 and [FeII] gas in a sample of AGN. The H2 lines are unresolved in all objec…
nlin.CD2003
Stochastic stabilization of cosmological photons
C. P. Dettmann, J. P. Keating, S. D. Prado
The stability of photon trajectories in models of the Universe that have constant spatial curvature is determined by the sign of the curvature: they are exponentially unstable if t…