Millimeter emission from supermassive black hole coronae

Understand

Active Galactic Nuclei (AGN) host accreting supermassive black holes (SMBHs).

• The accretion can lead to the formation of a hot, X-ray emitting corona close to the SMBH capable of accelerating relativistic electrons.
• Observations in the millimetre (mm) band can probe its synchrotron emission.
• We provide a framework to derive physical information of SMBH coronae by modelling their spectral energy distribution (SED) from radio to far infrared frequencies.