Seminari DAM: "The complex dance between extragalactic jets and host galaxies"

Conferenciant: Dr. Manel Perucho Pla (Departament d'Astronomia i Astrofísica -  Facultat de Física - Universitat de València) 

Lloc:    Seminari del Departament d'Astronomia i Meteorologia, 7a planta.

Dia/ Hora:  21-01-2016 / 12:00 

Contacte: vbosch​am.ub.es

Resum: Relativistic extragalactic jets are formed in the vicinity of  supermassive black-holes in active galactic nuclei (AGN), and they  propagate through and out of the host galaxy along tens and hundreds of  kiloparsecs. These jets are among the most powerful astrophysical  scenarios known, involving time-integrated energies of the order of 1.e60 erg and powers ranging from 1.e42 to 1.e47 erg/s. On the one  hand,  their supersonic flows trigger strong shocks that propagate through the  interstellar medium of their host galaxies and eventually through the  intracluster medium and, on the other hand, they are subject to the  development of instabilities and to deceleration by entrainment. In my  talk, I will show that jet evolution is not only affected by its own  properties, but also by those of the host galaxy, namely gas  distribution and stellar population. I will also review several results  that provide evidence for the host galaxy evolution being conditioned  by  the jet passage.