Seminar: Relativistic Outflows in the computer lab: numerical simulations of microquasar and extragalactic jets

Speaker: Dr. Manel Perucho (Universitat de València)
Organization: Dept.d' Astronomia i Meteorologia
e-mail: (Josep Maria Paredes)
Data: Dimecres, 26 de Gener de 2011
Time: 12:00
Site: Sala de Seminaris, Planta 7

Abstract: Relativistic outflows are commonly associated to accreting compact objects. These systems generate highly collimated jets able to extract large amounts of energy from the surroundings of the compact object to large distances, having an effect on their environments and generating radiation in the whole spectrum. Numerical simulations are our best laboratory to study these objects. In my talk I will review our last results from simulations of Microquasar jets. We have performed different 3D simulations to study the interaction of jets with stellar winds in High Mass X-ray Binaries. We show that such interaction may produce candidate locations for particle acceleration and high-energy emission. In addition, disruption of the jet can be produced if the jet power is not large enough, frustrating their growth. I will also present results on simulations of longer-term evolution of microquasar jets in two dimensions. In particular, we were interested on the interaction with different media such as the Supernova Remnant or shocked Interstellar Medium and the resulting radiative signature. If time permits, I will present some of our last results on 2D simulations of long-term evolution of AGN jets in a typical galaxy and cluster environment, from 1 kpc to almost 1 Mpc, and I will discuss some interesting conclusions regarding the cooling flow problem in Cosmology.


Wednesday, January 26, 2011