593 citations · 28.6k across the 519 of their papers we have counts for
10 papers · 1 filter
Jets from subpc to kpc scale
Fabrizio Tavecchio
The Chandra discovery of bright X-ray emission from kpc-scale jets provides us unprecedented insights into the physical state of the plasma in the flow. In particular it is possibl…
Jets at all scales
F. Tavecchio
I discuss recent developments in the field of relativistic jets in AGNs. After a brief review of our current knowledge of emission from Blazars, I discuss some consequences of the…
Detection of X-ray Emission from the Eastern Radio Lobe of PICTOR A
Paola Grandi, Matteo Guainazzi, Laura Maraschi +5
The XMM-Newton satellite has revealed extended X-ray emission from the eastern radio lobe of the Fanaroff-Riley II Radio Galaxy Pictor A. The X-ray spectrum, accumulated on a regio…
An enshrouded AGN in the merging starburst system Arp~299 revealed by BeppoSAX
R. Della Ceca, L. Ballo, F. Tavecchio +9
Using a long (=150 ksec), broad-band (0.1--40 keV) BeppoSAX observation of the merging starburst system Arp 299 (=IC 694 + NGC 3690) we found the first unambiguous evidence of the…
Broad-band continuum and line emission of the gamma-ray blazar PKS 0537-441
E. Pian, R. Falomo, R. C. Hartman +10
PKS 0537-441, a bright gamma-ray emitting blazar, was observed at radio, optical, UV and X-ray frequencies during various EGRET pointings, often quasi-simultaneously. In 1995 the o…
Spectral Energy Distributions of Flat Spectrum Radio Quasars observed with BeppoSAX
F. Tavecchio, L. Maraschi, G. Ghisellini +9
We report the BeppoSAX observations of 6 Flat Spectrum Radio Quasars. Three of them have a clear detection up to 100 keV with the PDS instrument. For 4 objects the X-ray spectrum i…
The Jet-Disk Connection and Blazar Unification
Laura Maraschi, Fabrizio Tavecchio
We discuss the relation between the power carried by relativistic jets and the nuclear power provided by accretion, for a group of blazars including FSRQs and BL Lac objects. They…
Four Years Monitoring of Blazar PKS 2155-304 with BeppoSAX: Probing the Dynamics of the Jet
Y. H. Zhang, A. Treves, A. Celotti +7
PKS 2155--304 is one of the brightest blazars in the X-ray band. It was repeatedly monitored with BeppoSax during three long campaigns of about 2 days each in November of 1996, 199…
A survey of extended radio jets in AGN with Chandra and HST: First Results
Rita M. Sambruna, L. Maraschi, F. Tavecchio +5
We present the first results from an X-ray and optical survey of a sample of AGN radio jets with Chandra and HST. We focus here on the first six sources observed at X-rays, in four…
BL Lacertae: complex spectral variability and rapid synchrotron flare detected with BeppoSAX
M. Ravasio, G. Tagliaferri, G. Ghisellini +23
We report on two BeppoSAX observations of BL Lac (2200+420) performed respectively in June and December 1999, as part of a ToO program to monitor blazars in high states of activity…