superluminal radio jets in microquasars

Abstract Almost every strong cooling core contains an active radio galaxy. Combined radio and X-ray images reveal the dramatic interaction which is taking place between the radio jet and the central cluster plasma. At least two important questions can in principle be answered by comparing the new

Almost every strong cooling core contains an active radio galaxy. Combined radio and X-ray images reveal the dramatic interaction which is taking place between the radio jet and the central cluster plasma. At least two important questions can in principle be answered by comparing the new data

Extragalactic radio sources, including quasars, are now typically understood as being produced by a pair of nearly symmetric, oppositely directed relativistic jets. While some these sources span megaparsecs, and are thus the largest physically connected structures in the universe, emitting regions

We review the observational properties, from radio to X-rays, of the eight systems for which there is strong evidence for the formation of a radio jet in a X-ray binary system. 1

ABSTRACT Very Long Baseline Interferemetry (VLBI) with its high angular resolution plays an important role in the study of radio jets in AGNs. We present the preliminary results of the ongoing works in our group in recent years, including observations of EGRET AGNs, intermediate BL Lac objects

We present multi-epoch 8.4 and 43 GHz Very Long Baseline Array images of the BL Lac object 0735+178. The images confirm the presence of a twisted jet with two sharp apparent bends of 90 ◦ within two milliarcseconds of the core, resembling a helix in projection. The observed twisted geometry could

region of 1. 00 5. VLA 1 is elongated (0. 00 43\Theta0. 00 12) approximately in the direction of the bipolar molecular outflow observed at scales of 2 0 . The frequency dependence of the flux density and size is consistent with an optically partially-thick ionized thermal biconical jet. VLA 2

The shroud around the “compact, symmetric”

structures will be reported. Finally I will present new data on the superluminal giant radio source 1144+35 to discuss in detail the properties of pc scale jets. Key words: AGN, radio jets, jet velocity 1