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Abstract:
The transformational science on the study of supermassive black holes
and other non-horizon objects as enabled by the Event Horizon
Telescope opens a window to directly test the effects of General
relativity (GR) on various classes of accreting objects. The knowledge
garnered from studies of M87* and Sgr A* has to be expanded to several
other black holes to enhance our understanding of GR on a cosmological
scale. I will present the plans and progress underway of a project
with a sample of nearby galaxies. The work entails a multifrequency
approach with data obtained from radio to gamma-rays for a more
thorough modelling of the broadband SEDs and the variability of
accretion flows that are within the gravitational potential of the
black hole. Finally, the interest or the requirement in having both
the theory and observations in a close interface for this study will
also be discussed.
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