科学研究
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2023.09.04
Cosmic neutrinos: a new window into the extreme Universe
In 2013, the IceCube Neutrino Observatory at the South Pole discovered an extragalactic high-energy diffuse neutrino flux, opening a new era for neutrino astronomy. However, the origin of this flux remains mostly unresolved to date. Identification of astrophysical neutrino sources would be the smoking evidence to unveil the century-long puzzle on origin of cosmic rays. Being neutral and interac...
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2023.09.04
Thermal convection in rapidly rotating oblate spheroidal planets
Motivated by its applications to the interior dynamics of planets, the problem of thermal convection in rapidly rotating, self-gravitating fluid bodies has been widely modeled in spheres or spherical shells, which implicitly neglects the flattening effect due to the centrifugal force. However, recent Juno and Cassini missions have measured the gravitational fields of Jupiter and Saturn with ext...
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2023.03.30
Structure and dynamics of the local group galaxies
As the expansion of the universe continues to accelerate, the internal secular evolution of galaxies becomes more important as the distance between galaxies generally increases. The largest galaxies in the local group provide an ideal laboratory due to their proximity to study the secular evolution processes driven by internal dynamical structures, such as a bar and spiral arms. I will review t...
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2023.03.30
Structure and dynamics of the local group galaxies
As the expansion of the universe continues to accelerate, the internal secular evolution of galaxies becomes more important as the distance between galaxies generally increases. The largest galaxies in the local group provide an ideal laboratory due to their proximity to study the secular evolution processes driven by internal dynamical structures, such as a bar and spiral arms. I will review t...
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2023.03.30
Feeding and feedback of the supermassive blackhole in brightest cluster galaxies
The intracluster medium (ICM) is the largest reservoir of the hot baryons. The centers of the ICM often feature a sharp X-ray surface brightness peak. AGN mechanical feedback from the brightest cluster galaxy is likely preventing the hot ICM from the catastrophic cooling, although the exact feedback process remains poorly understood. A growing number of kiloparsec-scale multiphase filaments hav...
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