your ID: 0100 
First Name: Laura 
Last Name: Maraschi 
Affiliation: Brera Astronomical Obseravtory - INAF 
Title: Jet properties at different scales 
Authors: L. Maraschi & F.Tavecchio 
Topic: 3 
Session: oral 
Abstract: The CHANDRA discovery of X-ray emission from extragalactic 
relativistic jets at large distances from the nucleus is one 
of the most important recent results in this field.
The multifrequency observational results obtained from our survey
and following observations (Sambruna et al. 2004, 2005) will be 
summarized and discussed in the light of theoretical models for 
the emission mechanisms (Tavecchio et al. 2000, 2004). The scenario
envisaged (Tavecchio et al.2006) suggests that powerful jets 
propagate freely over large scales and decelerate close to their 
terminal hot spots possibly due to entrainment.