TY - JOUR
T1 - The relation between mergers and AGN activity
T2 - Results from radio galaxy and luminous infrared galaxy studies
AU - Deloado, R. M.González
AU - Tadhunter, C. N.
AU - Pérez, E.
AU - Villar-Martin, M.
AU - Holt, J.
AU - Rodríguez, J.
PY - 2006
Y1 - 2006
N2 - There is morphological evidence that the activity in powerful radio galaxies could be triggered by mergers and galaxy interactions. However, nothing is known about the timescales, order of events, and the type of interaction involved. It is not yet known whether there exists an evolutionary link between radio galaxies and other merger systems such as very luminous and ultraluminous infrared galaxies (VLIRGs and ULIRGs). Here, we report preliminary results obtained from the analysis of near-ultraviolet and optical spectroscopic observations of samples of Radio Galaxies and VLIRGs-ULIRGs to investigate, through age-dating of their young stellar population, whether an evolutionary link exists between VLIRGs/ULIRGs-Radio Galaxies-normal elliptical galaxies. These results will help to understand the genesis events that lead to the formation of radio jet and quasar activity, and they will allow us to place radio galaxies in the context of hierarchical evolution models for the population of giant elliptical galaxies.
AB - There is morphological evidence that the activity in powerful radio galaxies could be triggered by mergers and galaxy interactions. However, nothing is known about the timescales, order of events, and the type of interaction involved. It is not yet known whether there exists an evolutionary link between radio galaxies and other merger systems such as very luminous and ultraluminous infrared galaxies (VLIRGs and ULIRGs). Here, we report preliminary results obtained from the analysis of near-ultraviolet and optical spectroscopic observations of samples of Radio Galaxies and VLIRGs-ULIRGs to investigate, through age-dating of their young stellar population, whether an evolutionary link exists between VLIRGs/ULIRGs-Radio Galaxies-normal elliptical galaxies. These results will help to understand the genesis events that lead to the formation of radio jet and quasar activity, and they will allow us to place radio galaxies in the context of hierarchical evolution models for the population of giant elliptical galaxies.
KW - Galaxies: active
KW - Galaxies: evolution
KW - Galaxies: stellar population
U2 - 10.1002/asna.200510499
DO - 10.1002/asna.200510499
M3 - Article
SN - 0004-6337
VL - 327
SP - 159
EP - 166
JO - Astronomische Nachrichten
JF - Astronomische Nachrichten
IS - 2-3
ER -