The triggering mechanisms of powerful radio galaxies: mergers and interactions.

Authors
Dr.
Cristina Ramos Almeida
Date and time
1 Mar 2010 - 23:00 Europe/London
Address

Aula

Talk language
English
Slides language
English
Serie number
0
Description
Despite speculation that both starburst and nuclear activity in galaxies may be intimately linked via the common triggering mechanism of mergers and interactions, very little is known about the true nature of the link. Thus, the role of AGN in the formation and evolution of galaxies is still not well established. I will present deep Gemini/GMOS imaging observations which are used to investigate the triggering mechanism(s) in a complete sample of radio-loud AGN for which, uniquely, we have quantified the level of both the AGN and star formation activity. I will show results on the proportion of powerful radio galaxies triggered in galaxy mergers and also on the link between the degree of star formation/AGN activity and the interaction status of the host galaxies.