ar X iv : 0 81 2 . 01 26 v 1 [ as tr o - ph ] 1 D ec 2 00 8 15 GHz VLBI detection of the HST - 1 feature in the M 87 jet

ar X iv : a st ro - p h / 01 03 44 4 v 1 2 7 M ar 2 00 1 From Centimeter to Millimeter Wavelengths : A High Angular Resolution Study of 3 C 273

We monitored 3C 273 with VLBI at 15–86 GHz since 1990. We discuss component trajectories, opacity effects, a rotating jet, and outburst-ejection relations from Gamma-ray to radio bands.

ar X iv : 0 81 2 . 09 88 v 1 [ as tr o - ph ] 4 D ec 2 00 8 Exploring the powering source of the TeV X - ray binary LS 5039

LS 5039 is one of the four TeV emitting X-ray binaries detected up to now. The powering source of its multi-wavelength emission can be accretion in a microquasar scenario or wind interaction in a young non-accreting pulsar scenario. These two scenarios predict different morphologic and peak position changes along the orbital cycle of 3.9 days, which can be tested at milliarcsecond scales using ...

ar X iv : 0 81 0 . 43 71 v 1 [ as tr o - ph ] 2 4 O ct 2 00 8 Welcome back , Polaris the Cepheid

For about 100 years the amplitude of the 4 d pulsation in Polaris has decreased. We present new results showing a significant increase in the amplitude based on 4.5 years of continuous monitoring from the ground and with two satellite missions.

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 : m at h - ph / 0 31 10 01 v 5 8 D ec 2 00 4 Clifford Valued Differential Forms , Algebraic Spinor Fields , Gravitation , Electromagnetism and ” Unified ” Theories ∗

* This paper is an expanded version of the material containing in [73](math-ph/0407024) and [87](math-ph/0407025), which are published in Int.