progress
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Progress In Research On The Formation Of Dark Matter Deficient Galaxies
2024-03-14
Dark matter deficient galaxies are a very unique type of galaxy discovered in recent years (van Dokkum et al. 2018), whose formation mechanism is unclear and poses a threat to the standard cosmological model, attracting widespread attention from astronomers. Recent studies have proposed possible mechanisms for its formation, such as galaxy collisions triggering the formation of dark matter deficient galaxies. Recently, a research team led by researcher Go Ogiya from the School of Physics at Zhejiang University discovered that the mechanism of galaxy collisions is also problematic, so the forma...
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The Detailed Process Of Galaxy Accretion And Extragalactic Gas Formation Into Stars
2024-03-14
The detailed process of galaxies accreting extragalactic gas and forming stars is a hot topic in astrophysics research. To unravel this mystery, an international team led by Professor Cai Zheng, including Professor RenYue Cen from Zhejiang University, collaborated to observe a massive gas nebula 11 billion years ago using the world's largest optical telescope, the Keck. Using an advanced imaging spectrometer, the Cosmic Web Imager, the team successfully detected hydrogen and various heavy element radiation in the surrounding gas of the galaxy and further estimated the large-scale spatial d...
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Scientists Propose A New Model For The Orbital Evolution Of Giant Planets In The Solar System
2024-03-12
Giant planets Solar system Evolution Dissipation Naissance
Giant planets Solar system Evolution Dissipation NaissanceThe sun blows away the gas in the protoplanetary disk like a giant hair dryer. (Image source: Liu Beibei)The sun is the center of the entire solar system. The eight major planets each hold their own orbits and revolve around the sun in peace. But astronomers have been trying to answer a question: How did the orbits of planets in the solar system become what they are now?Researcher Liu Beibei from Zhejiang University and collaborators from the University of Bordeaux in France and Michigan State University in the U...
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