364 citations · 2k across the 41 of their papers we have counts for
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Accretion-Induced Collapse of Dark Matter Admixed White Dwarfs -- II: Rotation and Gravitational-wave Signals
Shuai Zha, Ming-Chung Chu, Shing-Chi Leung +1
We present axisymmetric hydrodynamical simulations of accretion-induced collapse (AIC) of dark matter (DM) admixed rotating white dwarfs (WD) and their burst gravitational-wave (GW…
Accretion-Induced Collapse of Dark Matter Admixed White Dwarfs -- I: Formation of Low-mass Neutron Stars
Shing-Chi Leung, Shuai Zha, Ming-Chung Chu +2
Recently observed pulsars with masses challenge the conventional neutron star (NS) formation path by core-collapse supernova (CCSN). Using spherically symmetr…
Evolution of ONeMg Core in Super-AGB Stars towards Electron-Capture Supernovae: Effects of Updated Electron-Capture Rate
Shuai Zha, Shing-Chi Leung, Toshio Suzuki +1
Stars with evolve to form a strongly degenerate ONeMg core. When the core mass becomes close to the Chandrasekhar mass, the core undergoes electron captures…
New Type Ia supernova Yields and the Manganese and Nickel Problems in the Milky Way and Dwarf Spheroidal Galaxies
Chiaki Kobayashi, Shing-Chi Leung, Ken'ichi Nomoto
In our quest to identify the progenitors of Type Ia supernovae (SNe Ia), we first update the nucleosynthesis yields both for near-Chandrasekhar (Ch) and sub-Ch mass white dwarfs (W…
Electron-capture Rates in Ne for a Forbidden Transition to the Ground State of F Relevant to Final Evolution of High-density O-Ne-Mg Cores
Toshio Suzuki, Shuai Zha, Shing-Chi Leung +1
Electron capture on Ne is critically important for the final stage of evolution of stars with the initial masses of 8 - 10 . In the present paper, we evaluate ele…
Electron Capture Supernovae of Super-AGB Stars: Sensitivity on Input Physics
Shing-Chi Leung, Ken'ichi Nomoto, Tomoharu Suzuki
Stars of 8 - 10 on the main-sequence form strongly electron-degenerate O+Ne+Mg core and become super-AGB stars. If such an O+Ne+Mg core grows to 1.38 ,…
Pulsational Pair-instability Supernovae. I. Pre-collapse Evolution and Pulsational Mass Ejection
Shing-Chi Leung, Ken'ichi Nomoto, Sergei Blinnikov
We calculate the evolution of massive stars, which undergo pulsational pair-instability (PPI) when the O-rich core is formed. The evolution from the main-sequence through the onset…
Explosive Nucleosynthesis in Sub-Chandrasekhar Mass White Dwarf Models for Type Ia Supernovae: Dependence on Model Parameters
Shing-Chi Leung, Ken'ichi Nomoto
Recent observations of Type Ia supernovae (SNe Ia) have shown diversified properties of the explosion strength, light curves and chemical composition. To investigate possible origi…