Title: VLBI at Low Frequencies: looking at AGN in XMM-LSS
Author: Dr Leah Morabito
University of Oxford
Traditional very long baseline interferometry (VLBI) instruments provide exquisite resolution, but for small fields of view. While advancements have been made in imaging fields a few arcminutes across, surveying at high resolution still requires a considerable amount of telescope resources. The Low Frequency Array (LOFAR) offers sub-arcsecond resolution and its phased array design opens up fields of view of a few square degrees per every individual pointing. In this talk, I will discuss the application of a new strategy for wide-field, high-resolution efficient surveying with LOFAR, and show several highlights from looking at active galactic nuclei (AGN) in the XMM-LSS field.
More about the author:
Leah Morabito is a Postdoctoral Fellow at Christ Church, the University of Oxford, where she works on high-resolution imaging at low frequencies. Her research interests include radio-loud and radio-quiet active galactic nuclei (AGN), and how they impact galaxy evolution. She uses traditional very long baseline interferometry (VLBI) techniques to make sub-arcsecond images at frequencies at 60 to 150 MHz, which provides detailed morphological information on radio AGN. As a leading member of the Low Frequency Array long-baseline working group, she is developing a strategy to accomplish high-resolution imaging at these frequencies across wide (~ 3 square degrees per observation) fields of view.