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2021.04.08
Time-delay cosmography: tensions between measurements of the Hubble constant from the early and late Universe
The Hubble Constant is a measure of the expansion rate of the Universe, but in recent years a dichotomy, or tension at the 5-sigma level, has appeared between its measurement in the early Universe for...
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2021.04.01
Euclid: exploring the dark Universe
In past century we have learned much about the origin and evolution of the Universe. We now know the Universe is 13.8 billion years old, but its main ingredients remain a mystery: atoms make up only 5...
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2021.03.25
Analytical Solution of Magnetically Dominated Astrophysical Jets and Winds: Jet Launching, Acceleration, and Collimation
Jets/winds are ubiquitously in association with different celestial objects. However, most of previous theoretical studies of them rely on numerical calculations, not being able to provide a more conv...
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2021.03.18
Recent Progress in Understanding Tidal Disruption Events
When a star falls sufficiently close to a supermassive black hole, it is disrupted by the enormous tidal forces and then the debris feeds a sudden burst of accretion. Such tidal disruption events (TDE...
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2021.03.11
Highlights of Recent Results from Insight-HXMT: China's 1st X-ray Astronomy Satellite
Insight-HXMT is China’s first X-ray astronomy satellite and was successfully launched on June 15th, 2017. It carries three sets of collimated X-ray instruments with large effective areas, covering en...
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2021.03.04
Reverberation mapping black hole accretion flows
Sitting at the heart of nearly all galaxies is a massive black hole, that, while typically 1000 times less massive than the galaxy in which it resides, has the potential to release enough energy via a...
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2021.02.25
A Song of Ice and Fire: the Fate of Planetary Systems After Stellar Death
In the past 30 years, astronomers have discovered thousands of planets orbiting stars outside the solar system. Most of the exoplanets we know of today orbit stars that will eventually exhaust their n...
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2021.01.12
High-resolution spectroscopy of ionized plasmas in the Universe
<p>Ionized plasmas are ubiquitous in the Universe: from stellar coronae to cosmic web filaments. Characterizing ionized plasmas is critical to address many astrophysical questions, for instance, the inte...</p>
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2021.01.12
The First Census of Metals in Dwarf Galaxies
Metals, conventionally defined as elements heavier than hydrogen and helium, are actively circulated between galaxies and their circumgalactic medium (CGM). Dwarf galaxies are more efficient at propel...
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2021.01.11
The radio-bright future of studying black holes
<p>In recent years we witnessed tremendous progress in high frequency very long baseline radiointerferometry (VLBI). These developments were most notably marked by the first image of a supermassive black...</p>
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