DOI

https://doi.org/10.48717/qcyp-3e74

Project

EN009

Title

Resolving the radio cores of the Quasar Feedback Survey sample with EVN+

Abstract

The Quasar Feedback Survey is a systematic multi-wavelength study of 42 low-redshift (< 0.2) quasars. We address the questions of what is the origin of the radio emission in this sample and how do these quasars interact with their host galaxies. A combined EVN+e-MERLIN array is the powerful tool required to achieve the spatial dynamic range (~10 mas, down to ~ 20 pc for z = 0.1) needed to resolve the radio cores and map the radio structures. We propose 24 hours, 1.6 GHz EVN+e-MERLIN pilot observations of six sources in our sample that represent the range of radio and emission-line properties seen across the sample based on high spatial resolution (0.3-1 arcsec) 1.5-6 GHz radio images from Very Large Array. The main goals of this proposal are i) determine the origin of core radio emission in quasars (e.g., jets, corona emission, star formation, or quasar winds), and ii) compare the radio properties (e.g., jet power/inclination or quasar winds) to emission-line gas to quantify the impact quasars have on their host galaxies by combining with MUSE integral field spectroscopy data we have for these targets.