منابع مشابه
Vlbi Observations of Low Power Radio Galaxies
The parsec scale properties of low power radio galaxies are reviewed here, using the available data on 12 FR I galaxies. The most frequent radio structure is an asymmetric parsec-scale morphology, i.e. core and one-sided jet. It is shared by 9 (possibly 10) of the 12 mapped radio galaxies. One (possibly 2) of the other galaxies has (have) a two-sided jet emission. Two sources are known from pub...
متن کاملCanonical Particle Acceleration in FRI Radio Galaxies
Matched resolution multi-frequency VLA observations of four radio galaxies are used to derive the asymptotic low energy slope of the relativistic electron distribution. Where available, low energy slopes are also determined for other sources in the literature. They provide information on the acceleration physics independent of radiative and other losses, which confuse measurements of the synchr...
متن کاملVlbi Observations of a Complete Sample of Radio Galaxies Iv-the Radio Galaxies Ngc2484, 3c109 and 3c382
1) Dipartimento di Astronomia, Via Zamboni 33, 40100 Bologna, ITALY 2) Istituto di Radioastronomia, via Gobetti 101, 40129 Bologna, ITALY 3) Instituto de Astrofisica de Andalucia, CSIC, Apdo. 3004, 18080 Granada, SPAIN 4) Departamento de Astronomia, Universitat de Valencia, 46100 Burjassot, SPAIN 5) Department of Physics and Astronomy, University of Iowa, Iowa City, IA 52242 USA 6) Infrared Pro...
متن کاملRotation-Measures across Parsec-scale Jets of FRI radio galaxies
We present the results of a parsec-scale polarization study of three FRI radio galaxies – 3C66B, 3C78 and 3C264 – obtained with the Very Long Baseline Array at 5, 8 and 15 GHz. Parsec-scale polarization has been detected in a large number of beamed radio-loud active galactic nuclei, but in only a handful of the relatively unbeamed radio galaxies. We report here the detection of parsec-scale pol...
متن کاملVLBI Observations of a Complete Sample of Radio Galaxies VIII - Proper Motion in 3C338
We present new VLA, MERLIN and VLBI images for the radio galaxy 3C 338, and the results of the monitoring of its arcsecond core flux density. Present high sensitivity observations allow us to investigate the radio structure of this source and to confirm the presence of two symmetric parsec scale jets. Morphological changes between different epochs are evident and a proper motion with β ∼ 0.4h h...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1996
ISSN: 0074-1809
DOI: 10.1017/s0074180900080281