19 papers
Neutral hydrogen absorption at milliarcsecond resolutions: The radio galaxy 3C293
R. J. Beswick, A. B. Peck, G. B. Taylor +2
We present new milliarcsecond resolution observations of the H1 absorption against the kiloparsec scale inner jet of the radio galaxy 3C293. Using a combination of observations obt…
The two sided parsec scale structure of the Low Luminosity Active Galactic Nucleus in NGC 4278
G. Giovannini, M. Giroletti, G. B. Taylor
We present new Very Long Baseline Interferometry observations of the LINER galaxy NGC 4278 with a linear resolution of < 0.1 pc. Our radio data reveal a two sided structure, with s…
Parsec scale properties of nearby BL Lacs
M. Giroletti, G. Giovannini, G. B. Taylor +1
We present new radio data completing the imaging for a sample of 30 nearby (z < 0.2) BL Lac objects on parsec and kiloparsec scale. The sample is composed of both high and low lumi…
Radio Observations of Nearby HST BL Lacs
M. Giroletti, G. Giovannini, G. B. Taylor +1
We present a radio/optical study of a sample of BL Lac objects at arcsecond and milliarcsecond resolution. The sample consists of 30 nearby (z<0.2) BL Lacs, mostly X-ray selected.…
Parsec Scale Properties of Radio Sources
G. Giovannini, M. Giroletti, G. B. Taylor +3
We present a new complete sample of radio sources selected from the B2 and 3CR catalogues, with no bias respect to the jet velocity and orientation. Using preliminary data we inves…
Parsec-scale properties of a complete sample of radio galaxies
T. Venturi, G. Giovannini, L. Feretti +2
We report the most important results on the parsec-scale properties of a complete sample of radio galaxies carried out at radio frequencies with the Global VLBI array and with the…