Star-formation in the host galaxies of radio-AGN

TL;DR

This study investigates the relationship between radio-AGN activity and star formation in host galaxies, using multi-wavelength data to explore how jets influence galaxy evolution and star-formation quenching.

Contribution

It provides new insights into the role of radio jets in star-formation quenching, utilizing combined broadband SED modeling and optical spectroscopy on a rich dataset.

Findings

Jets are generally inefficient at quenching star formation.

Powerful jets may have a more significant impact on star-formation suppression.

Preliminary evidence suggests a complex relationship between jet power and star-formation activity.

Abstract

There exist strong evidence supporting the co-evolution of central supermassive black holes and their host galaxies. It is however still unclear what the exact role of nuclear activity, in the form of accretion onto these supermassive black holes, in this co-evolution is. We use a rich multi-wavelength dataset available for the North Ecliptic Pole field, most notably surveyed by the AKARI satellite infrared telescope to study the host galaxy properties of AGN. In particular we are interested in investigating star-formation in the host galaxies of radio-AGN and the putative radio feedback mechanism, potentially responsible for the eventual quenching of star-formation. Using both broadband SED modeling and optical spectroscopy, we simultaneously study the nu- clear and host galaxy components of our sources, as a function of their radio luminosity, bolo- metric luminosity, and radio-loudness. Here we present preliminary results concerning the AGN content of the radio sources in this field, while offering tentative evidence that jets are inefficient star-formation quenchers, except in their most powerful state.