科学研究
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2023.04.06
Solving the Mystery of Small Exoplanets through Holistic Characterization
The first detection of another planet around a Sun-like star marked the beginning of a new era in which our understanding of how planets typically form and the uniqueness of our Solar System were radically upended. We now know that planet formation is incredibly resilient, and produces a diverse myriad of planets around a wide range of stellar types. These remarkable findings tell us that the S...
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2023.03.31
Supercritical growth of seed BHs at cosmic dawn and co-evolution with host galaxies: a perspective regarding outflows
Supercritical growth of massive/stellar mass seed BHs at high-z universe is believed to be one of the possible solutions to grow the observed supermassive black holes (SMBHs) at z~6. We study the long-term evolution of the global structure of axisymmetric accretion flows onto a black hole (BH) at rates substantially higher than the Eddington value, performing two-dimensional radiation hydrodyna...
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2023.03.30
Not only astrophysics: fundamental physics studies with high energy missions
There are no doubts that high energy astrophysics has opened new views on the Universe and on the many classes of sources that populates the hot and energetic sky. However, in the near future, spectral, timing, and polarimetric observations at high energies are expected to address key scientific questions in fundamental physics.In this seminar, I will first briefly summarise the potential of hi...
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2023.03.24
Models for binary-neutron-star mergers in the multi-messenger era
It has been more than half a decade since the first joint detection of gravitational wave and its electromagnetic counterparts (GW170817). The physical models on binary-neutron-star (BNS) mergers are continuously challenged by the ongoing observational facts and the progress in simulation. I will be briefly reviewing the history of models for BNS mergers and presenting the efforts we have made ...
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2023.03.23
Active Galactic Nuclei: Monsters to Scale or Puzzles to Solve?
Active Galactic Nuclei (AGNs) are the brightest sources of electromagnetic radiation in the universe, enabling us to observe them across the cosmos. AGNs are the central parts of galaxies.Most of their brightness results from the accretion of matter by a supermassive black hole (SMBH) at their center. Studying the AGNs informs us about the role of SMBHs in the formation and evolution of galaxie...
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