Conference discussed extreme variability phenomena in supermassive black holes, implying new insights into their physics.
A series of extreme‐variability phenomena associated with supermassive black holes (SMBHs) in galactic nuclei are being revealed with increasing frequency in recent years thanks to enhanced survey capabilities across the electromagnetic spectrum. The observation of these extreme phenomena has opened the way to the study of the physics of SMBHs in real time—something that, until a decade ago, was exclusively associated with stellar‐mass black holes. A conference to discuss the physical processes powering these objects was held at ESAC, Madrid, Spain in June 2025.
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Saxton et al. (2026) studied this question.
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