5 papers
Nucleosynthesis of Pop III and Fe-enriched Pop II Pair-Instability Supernovae
Wenyu Xin, Ken'ichi Nomoto, Chun-Ming Yip +4
Recently discovered very metal-poor (VMP) star LAMOST J1010+2358 shows a peculiar abundance pattern that is remarkably well fit by a Pop III pair-instability supernova (PISN) of $\…
Constraints on the CO and O+O Reaction Rates from Binary Black Holes Detected via Gravitational Wave Signals
Wenyu Xin, Xiaokun Hou, Xianfei Zhang +2
Gravitational-wave observations of binary black hole (BH) mergers provide a novel avenue for testing massive-star evolution and the resulting BH mass spectrum. Recent population an…
The impact of new (, n) reaction rates on the weak s-process in metal-poor massive stars
Wenyu Xin, Chun-Ming Yip, Ken'ichi Nomoto +2
Massive stars are significant sites for the weak s-process (ws-process). Ne and O are, respectively, the main neutron source and poison for the ws-process. In the met…
Impacts of the O(O, n)S reaction rate on the evolution and nucleosynthesis in Pop III massive stars
Wenyu Xin, Ken'ichi Nomoto, Xianfei Zhang +1
We first present a systematic investigation into the effect of the O(O, n)S reaction rate on the evolution and nucleosynthesis of Population III (Pop III) star…
Potential Impact of the Sagittarius Dwarf Galaxy on the Formation of Young O-rich Stars
Tiancheng Sun, Shaolan Bi, Xunzhou Chen +11
The Milky Way underwent significant transformations in its early history, characterised by violent mergers and satellite galaxy accretion. However, recent observations reveal notab…