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2021.04.15
Some MHD processes during planet formation and evolution
The Planet formation involves complicated MHD processes. Planets are believed to be formed within the proto-planetary disks. The speaker will talk about some of the processes related to the proto-plan...
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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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2021.04.07
High dynamic range wide field imaging method in radio interferometry
Wide-field radio-interferometer surveys at high resolution, relatively low frequency and with very high dynamic range requirement play a prominent role in current and forthcoming radio astronomy progr...
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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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2021.03.31
Stormy weather on brown dwarfs and isolated young giant planets
Brown dwarfs and relatively isolated young extrasolar giant planets occupy an important parameter space to understand planetary atmospheres. Recent observations of these worlds have provided unprecede...
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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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2021.03.16
A new vocabulary for patterns and its cosmological applications, or, a CNN without training
Textures and patterns are ubiquitous in astronomical data but challenging to quantify. The speaker will present a novel statistical tool, called the “scattering transform”. It borrows ideas from con...
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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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