15-GHz radio emission from nearby low-luminosity active galactic nuclei

Understand

We present a sub-arcsec resolution radio imaging survey of a sample of 76 low-luminosity active galactic nuclei (LLAGN) that were previously not detected with the Very Large Array at 15 GHz.

• Compact, parsec-scale radio emission has been detected above a flux density of 40 $\mu$Jy in 60% (45 of 76) of the LLAGN sample.
• We detect 20 out of 31 (64%) low-ionization nuclear emission-line region (LINER) nuclei, ten out of 14 (71%) low-luminosity Seyfert galaxies, and 15 out of 31 (48%) transition objects.
• We use this sample to explore correlations between different emission lines and the radio luminosity.