LeMMINGs the eMERLIN radio legacy survey of nearby galaxies

Ranieri Baldi, I. McHardy, D. Williams, R. Beswick, et al

Research output: Chapter in Book/Report/Conference proceedingConference contribution


I will present the first data release of high resolution 1.5 GHz radio observations of 103 nearby galaxies with the eMERLIN array, part of the LeMMINGs survey. The sample consists of active and non-active galaxies, taken from the Palomar sample. The radio images reveal a broad variety of morphologies: one/two-sided jets, double-lobed jets, complex str uctures and star formation regions on a typical scale of 100 pc, down to a radio luminosity of 1032 erg/s. The most important result is the detection of pc-scale jetted structures associated with black hole masses down to 10(6) solar mass. By dividing the sample into optical classes, LINERs show more core-brightened radio morphologies and appear to be the scaled-down version of FRI radio galaxies; Seyferts show less collimated jets than LINERs. I will also present new Chandra X-ray data for the sample. I will show how the sample spreads in the X-ray/radio diagram and how the different optical classes can be interpreted based on different disc-jet models. In addition, I also find that that jetted radio sources follow the optical fundamental plane of black hole activity, suggesting a common disc-jet relationship....
Original languageEnglish
Title of host publicationAGN13: Beauty and the Beast. The 13th Italian meeting on Active Galactic Nuclei
Publication statusPublished - Oct 2018


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