ar X iv : a st ro - p h / 02 12 57 9 v 1 3 1 D ec 2 00 2 Behaviour of Magnetic Tubes in Neutron Star ’ s

ar X iv : a st ro - p h / 06 12 37 8 v 1 1 4 D ec 2 00 6 Magnetic fields , strings and cosmology

ar X iv : a st ro - p h / 02 12 56 6 v 1 3 0 D ec 2 00 2 Dark Energy : Is it Q or Λ ?

New observations of Cosmic Microwave Background Anisotropies, Su-pernovae luminosity distances and Galaxy Clustering are sharpening our knowledge about dark energy. Here we present the latest constraints.

ar X iv : a st ro - p h / 05 12 61 7 v 1 2 7 D ec 2 00 5 3 D Spectroscopy of Herbig - Haro objects

ar X iv : a st ro - p h / 01 12 21 9 v 1 1 0 D ec 2 00 1 Gamma - ray bursts : the tip of the iceberg ? Maurice

The spin-energy E rot of a Kerr black hole surrounded by a torus may power emissions in multiple windows. The recently determined true GRB-energy E γ = 3 − 5 × 10 50 erg indicates a minor fraction E j /E rot ≃ 0.1% in baryon poor output, here considered as jets along open magnetic flux-tubes from the horizon to infinity. A major fraction E gw /E rot ≃ 5% is expected in gravitational radiation f...

ar X iv : a st ro - p h / 02 11 45 7 v 2 1 0 D ec 2 00 2 Time variation of fundamental constants : two phenomenological models

Time variation of fundamental constants, a strong signal of new physics, is analyzed comparing extant data with two phenomenological models. Results are discussed.