科学研究
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2025.03.13
Binary around a BIG black hole v.s. Star around a BIG binary [EN]
The detections of gravitational waves (GWs) from merging binary black holes (BHs) have motivated extensive research on the dynamical formation of such compact black hole binaries (BHBs). Recent studies have highlighted the potential role of tertiary-induced mergers via von Zeipel-Lidov-Kozai (ZLK) oscillations in generating the BHBs detected by collaborations like LIGO/VIRGO/KAGRA. I will discu...
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2025.03.14
Expect the unexpected – Augmented astrophysical models for black hole population studies
GW observations are now revealing the population of black holes via the detection of binary black hole mergers, and the numbers are set to grow rapidly in the coming years: the distribution of astrophysical properties of binary black holes provides a key to interpret their formation channels. In this regard, scientists have proposed a variety of models for the black hole distribution, broadly c...
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2025.03.06
The progress of the SVOM Mission [EN]
SVOM (Space-based multiband Variable Object Monitor) is a Chinese-French space mission mainly designed to study Gamma-Ray Bursts. The satellite has four instruments to detect and localize the prompt GRB emission and measure the evolution of the afterglow in the visible band and in soft X-rays, and a VHF communication system enabling the fast transmission of SVOM alerts to the ground. The ground...
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2025.03.07
Turbulent HI Gas Driven by the SN Bubbles [EN]
The interstellar medium (ISM) is turbulent, and the energy sources driving this turbulence, particularly in HI gas, remain uncertain. Recently, stellar feedback, especially from supernovae (SNe), has been proposed as a potential mechanism for energy injection into the ISM. However, the specific processes involved are still unclear and require observational evidence. Using deep HI datacubes from...
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2025.02.27
Probing Active Galactic Nuclei with unprecedented precision — insights from VLTI/GRAVITY(+)
The inner structures of active galactic nuclei (AGNs) are essential for probing the fundamental parameters of the central supermassive black hole (BH), understanding accretion physics, and investigating the physical connection between the BH and its host galaxy. The reverberation mapping (RM) technique has been widely used to study the broad-line region (BLR), the dust torus, and the accretion ...
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