The LOFAR – eFEDS survey: The incidence of radio and X-ray AGN and the disk–jet connection

Context. Radio jets are present in a diverse sample of AGN. However, the mechanisms of jet powering are not fully understood, and it remains unclear to what extent they obey mass-invariant scaling relations similar to those found for the triggering and fuelling of X-ray-selected AGN. Aims. We use th...

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Published in:Astronomy and astrophysics (Berlin) 2024-06, Vol.686, p.A43
Main Authors: Igo, Z., Merloni, A., Hoang, D., Buchner, J., Liu, T., Salvato, M., Arcodia, R., Bellstedt, S., Brüggen, M., Croston, J. H., de Gasperin, F., Georgakakis, A., Hardcastle, M. J., Nandra, K., Ni, Q., Pasini, T., Shimwell, T., Wolf, J.
Format: Article
Language:English
Subjects:
Active galactic nuclei
Black holes
Dark matter
Energy conversion
LOFAR
Luminosity
Morphology
Optical counterparts (astronomy)
Power law
Radio astronomy
Radio galaxies
Radio jets (astronomy)
Star & galaxy formation
Star formation rate
Stellar mass
X-ray astronomy
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Summary:Context. Radio jets are present in a diverse sample of AGN. However, the mechanisms of jet powering are not fully understood, and it remains unclear to what extent they obey mass-invariant scaling relations similar to those found for the triggering and fuelling of X-ray-selected AGN. Aims. We use the multi-wavelength data in the eFEDS field observed by eROSITA/Spectrum-Roentgen-Gamma (SRG) and LOFAR to study the incidence of X-ray and radio AGN as a function of several stellar mass ( M * )-normalised AGN power indicators. Methods. From the LOFAR – eFEDS survey, we defined a new sample of radio AGN, with optical counterparts from Legacy Survey DR9, according to a radio-excess relative to their host star formation rate. We further divided the sample into compact and complex radio morphologies. In this work, we used the subset matching to the well-characterised, highly complete spectroscopic GAMA09 galaxies (0 
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361/202349069