Our group specializes in observational astrophysics, with a primary focus on phenomena occurring in regions of extreme gravity near cosmic black holes. Our specific research topics include (1) the physics of accretion and outflow processes in the vicinity of black holes, (2) the generation of TeV-PeV scale high-energy neutrinos and their correlation with radio to gamma-ray flares near black holes, and (3) the formation and evolution of massive black holes in the early Universe, including the possible role of direct collapse and the emergence of intermediate-mass black holes during the formation of the first stars and galaxies in the Universe. Recently, we have also expanded our work to include studies of dark matter and other cosmological phenomena.

To this end, our research group employs multi-wavelength and multi-messenger observations of the Universe, collecting and utilizing data from both ground- and space-based observatories. More specifically, we perform nano-radian scale extreme-resolution imaging of cosmic black holes using radio interferometry and aperture synthesis techniques, as well as time-series and spectral modeling across various wavelengths. We also collaborate actively with large-scale international consortia, including the Event Horizon Telescope (EHT) Collaboration. In addition, we also contribute to the design and verification of next-generation ground-based and space-borne observational facilities. Our group is also engaged in developing advanced big data processing tools and AI-based methods for future exabyte-scale data processing, particularly in support of the Square Kilometre Array (SKA).

Keywords: black holes, General Relativity, high-energy neutrinos, multi-messenger astrophysics, early Universe and cosmology, radio astronomy, radio interferometry, space and lunar telescopes, machine learning and neural networks, exascale computing