CCD photometry and MERLIN observations of M87 (Virgo A) have been used to study the variations of the radio to optical spectral index along the jet. In general...

Results from a multiwaveband study of the γ-ray-bright compact radio source 3C 454.3 are presented.

We report on recent radio observations of the newly-detected accreting millisecond X-ray pulsar, IGR J17511-3057 (ATels #2196, #2197, #2198, #2199, #2215, #2216...

We present the results on the optical morphology and structure of 25 low-luminosity radio galaxies. The radial dependence of parameters like the surface...

We report the discovery of a population of dominant galaxies in rich clusters in which the radio axis is aligned along the optical major axis.

General information is supplied about the present conditions of radio-stars and SAO-stars observation program, which are being carried out at the "Felix Aguilar...

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The process of $ u ar{ u}$ radiation from a relativistic plasma of electrons and positrons is studied within the Random Phase Approximation.