High-frequency instabilities in an explosion-generated relativistic plasma

Multidimensional electron beam-plasma instabilities in the relativistic regime

Electron Acceleration in Relativistic Plasma Waves Generated by a Single Frequency Short-Pulse Laser

Experimental evidence for the acceleration of electrons in a relativistic plasma wave generated by Raman forward scattering (SRS-F) of a single-frequency short pulse laser are presented. A 1.053 pm, 600 fsec, 5 TW laser was focused into a gas jet with a peak intensity of 8x1017 W/cm2. At a plasma density of 2x1019 2 MeV electrons were detected and their appearance was correlated with the anti-S...

Plasma instabilities in high electric fields.

The High-metallicity Explosion Environment of the Relativistic Supernova 2009bb

We investigate the environment of the nearby (d ≈ 40 Mpc) broad-lined Type Ic supernova SN 2009bb. This event was observed to produce a relativistic outflow likely powered by a central accreting compact object. While such a phenomenon was previously observed only in long-duration gamma-ray bursts (LGRBs), no LGRB was detected in association with SN 2009bb. Using an optical spectrum of the SN 20...

Instabilities of Relativistic Stars

Recent developments on the rotational instabilities of relativistic stars are reviewed. The article provides an account of the theory of stellar instabilities with emphasis on the rotational ones. Special attention is being paid to the study of these instabilities in the general relativistic regime. Issues such as the existence relativistic r-modes, the existence of a continuous spectrum and th...