ar X iv : 0 90 7 . 19 12 v 1 [ as tr o - ph . C O ] 1 0 Ju l 2 00 9 Dark Matter Astrophysics

ar X iv : 0 90 7 . 44 33 v 1 [ as tr o - ph . H E ] 2 5 Ju l 2 00 9 Galactic positrons and electrons from dark matter and astrophysical sources .

The electron and positron cosmic rays observations have impulsed a hot debate regarding the origin of such particles. Their propagation in the galactic medium is modeled according to a successfully tested two–zone propagation model. The theoretical uncertainties related to their propagation and production are studied for three cases: secondary production, Dark Matter annihilation, and originati...

ar X iv : 0 70 8 . 26 18 v 1 [ as tr o - ph ] 2 0 A ug 2 00 7 Using Local Volume data to constrain Dark Matter dynamics

ar X iv : 0 80 7 . 16 35 v 1 [ as tr o - ph ] 1 0 Ju l 2 00 8 Dark energy : myths and reality ∗

We discuss the questions related to dark energy in the Universe. We note that in spite of the effect of dark energy, large-scale structure is still being generated in the Universe and this will continue for about ten billion years. We also comment on some statements in the paper " Dark energy and universal antigravitation " by A.D. Chernin [4].

ar X iv : 0 90 3 . 05 62 v 1 [ as tr o - ph . G A ] 3 M ar 2 00 9 Introduction to Millimeter / Sub - Millimeter

ar X iv : 0 81 0 . 17 54 v 1 [ as tr o - ph ] 9 O ct 2 00 8 A Cosmic Vision Beyond Einstein

The acceleration of the cosmic expansion is a fundamental challenge to standard models of particle physics and cosmology. The new physics of dark energy may lie in the nature of gravity, the quantum vacuum, or extra dimensions. I give a brief overview of the puzzles and possibilities of dark energy, and discuss the confrontation of a wide variety of “beyond Einstein” models with the latest data...