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Empirically determining the averaged variations of the orbital parameters of the stars orbiting the Supermassive Black Hole (SBH) hosted by the Galactic Centre (GC) in Sgr A* is, in principle, a valua...
A basic property of objects, like galaxies and halos that form in cosmological structure formation simulations, is their shape. Here, we critically investigate shape determination methods that are com...
Using Constrained Local UniversE Simulations (CLUES) of the formation of the Local Group in a cosmological context we investigate the recently highlighted problem that the majority of the most massive...
Modeling the formation of Uranus and Neptune is a long-lasting problem in planetary science. Due to the gas-drag, collisional damping, and resonant shepherding, the planetary embryos repel the planete...
Fluorine (19F) abundances (or upper limits) are derived in six extragalactic AGB carbon stars from the HF(1-0) R9 line at 2.3358 mu in high resolution spectra. The stars belong to the Local Group gala...
High-time-resolution X-ray observations of compact objects provide direct access to strong-field gravity, to the equation of state of ultra-dense matter and to black hole masses and spins. A 10 m^2-cl...
The nearly edge-on galaxy NGC4945 is one of the closest galaxies where an AGN and starburst coexist, and is one of the brightest sources at 100 keV. Near and mid-infrared spectroscopy have shown very ...
We investigate the Faraday rotation measure (RM) due to the intergalactic magnetic field (IGMF) through the cosmic web up to cosmological distances, using a model IGMF based on turbulence dynamo in th...
奥地利维也纳大学天文研究所2010年11月23日发布公报说,其天文学家最近在大麦哲伦星云中首次发现具有特殊化学性质的恒星,并估计这个星云中约10%的恒星都可能是这种另类天体。
Case Studies of Interacting QSO Host Galaxies。
Observational Overview of the Feeding of Active Galactic Nuclei。
Structure of the Halo of the Milky Way     Halo  Milky Way       2009/6/26
Structure of the Halo of the Milky Way。
Stellar populations in the calán-eso catalogue. The luminosity function and kinematics of dwarfs。
Adaptive Optics Observations of Active Galactic Nuclei:Zooming into the Central Parsec Region。
Exploring the nature of weak Chandra sources near the Galactic centre。

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