[institut] Radio-Optical Study of Double-Peaked AGNs. (fwd)

[Slobodan Ninkovic]

---------- Forwarded message ----------
Date: Mon, 17 Mar 2008 09:46:17 +0100
From: J. León Tavares <fleon at inaoep.mx>
To: sninkovic at aob.bg.ac.yu
Cc: Luka Popovic <lpopovic at aob.bg.ac.yu>
Subject: Radio-Optical Study of Double-Peaked AGNs.

Dear Dr. Ninkovic,

Hoping that everything is ok, next the resume of  my talk for
Wednesday. If you need something else, please let me know.

Have a nice day.

J. Leon-Tavares


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Radio-Optical Study of  Double-Peaked AGNs.

Double-Peaked AGNs show broad double-peaked profiles around
Balmer and Mg II emission lines. Around 150 double-Peaked AGNs
are known at present. The Keplerian accretion disk models can fit
only ~50% of double-peaked profiles  and the origin of the rest
double-peaked profiles is still not well understood. We aim to explore the
physical  characteristics of the central engine of double-peaked emitters.
For the double-peaked  radio galaxy 3C 390.3 there is  evidence that
double-peaked emission lines and continuum luminosity are observed to vary
following changes in the inner radio jet. We have imaged and modelled
the radio emission of the inner jet of the double-peaked radio galaxy
3C~390.3, which was observed with very long baseline interferometry
VLBI at 15 GHz, 22 GHz  and
43 GHz, to image the inner part of the parsec-scale jet, locate the
exact region where the bulk of the continuum luminosity is generated
and  search for the mechanism
that drives the double-peaked profile emission.