Radio spectra of intermediate-luminosity broad-line radio galaxies

TL;DR

This study analyzes the radio spectra of intermediate-luminosity broad-line radio galaxies across multiple frequencies to understand their emission mechanisms and morphological diversity, aiding in distinguishing between radio-loud and radio-quiet AGN.

Contribution

It provides new radio spectral data for a specific class of AGN, highlighting spectral diversity and suggesting the need for imaging to explore source morphology.

Findings

Diverse spectral shapes observed across the sample

Spectral data collected between 2.6 and 32 GHz

Indication of varied emission mechanisms

Abstract

Within the context of investigating possible differences between the mechanisms at play in Radio Loud AGN and those in Radio Quiet ones, we study the spectral characteristics of a selected sample of Intermediate-Luminosity Broad-Line Radio Galaxies in X-rays, optical, IR and radio. Here, we present the radio spectra acquired with the 100-m radio telescope in Effelsberg between 2.6 and 32 GHz. These measurements reveal a large variety of spectral shapes urging for radio imaging that would disclose the source morphology. Such studies could potentially discriminate between different mechanisms.