[SEMINARI] [Seminar] Understanding extragalactic jets from theory and observations by Manel Perucho

[Enric Marco]

Understanding extragalactic jets from theory and observations

Manel Perucho Pla

Departament d'Astronomia i Astrofísica, Universitat de València

Lloc:  Seminari del Departament d'Astronomia i Astrofísica

Dia:  Dijous 12 febrer 2009

Hora: 16:00

Resum

I will review some aspects of my three years of research in the 
Max-Planck-Institut. These include modelling of extragalactic jets using 
numerical codes, stability theory and VLBI observations. In particular, 
I will report about a) results on evolution of components in the jet of 
the radio-galaxy 3C111 from the point of view of relativistic 
hydrodynamics, b) the observable effects of growing instabilities in 
jets as shown by detailed analysis of VLBI images of the jet in the 
quasar 0836+710, and c) I will present a new, fully parallelised, 3D 
relativistic hydrodynamics numerical code, along with the first results 
it has produced. These include the confirmation of the growth of 
resonant Kelvin-Helmholtz modes in sheared relativistic flows that can 
contribute to long term jet stabilization, as it was predicted from 2D 
simulations and KH stability theory.

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/------------------------------------\
 Dr. Enric Marco
 Departament d'Astronomia i Astrofísica
 Facultat de Física
 Universitat de València
 C/  Dr. Moliner, 50
 46100 Burjassot, Spain
 Phone: (34)-96-354-3069
 Fax:(34)-96-354-3084
 enric.marco en uv.es
 http://www.uv.es/marco
 http://www.uv.es/aulaastronomia
 http://www.uv.es/daa
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