47 citations · 106 across the 21 of their papers we have counts for
21 papers · 1 filter
Post-merger rotational evolution of magnetised single hot subdwarfs results in slow rotation due to magnetic braking
Facundo D. Moyano, Zhengwei Liu, Zhanwen Han +3
Single hot subdwarfs are believed to form through mergers of helium-core white dwarfs, which can lead to large-scale magnetic fields generated during the merger, and may be observa…
The Common Envelope Evolution Outcome. III. the Improvement of Stellar Binding Energy with the Envelope Residual
Lifu Zhang, Hongwei Ge, Dylan Hebrail +7
Common-envelope evolution (CEE) is a key process in the evolution of close binary systems. Many important astrophysical objects and evolutionary stages are closely related to CEE,…
A Helium-shell Burning Blue Horizontal Branch Star Produced from Common Envelope Evolution
Jiao Li, Changqing Luo, Hai-Liang Chen +16
Observationally, blue horizontal branch (BHB) stars are defined as hot stars occupying a characteristic region between the extreme blue horizontal branch and RR Lyrae variables in…
Revisiting atmospheric Roche lobe overflow in symbiotic binaries
Tan Liu, Natalia Ivanova, Philipp Podsiadlowski +5
Classical binary evolution models predict dynamically unstable mass transfer in symbiotic stars with high mass ratios, leading to a common envelope. However, many observed S-type s…
Mass-Orbital Period Distribution of Massive White Dwarfs Formed Through Stable Mass Transfer
Rizhong Zheng, Hongwei Ge, Christopher A Tout +10
White dwarfs (WDs) in binaries can form through either the stable mass-transfer process or common envelope evolution (CEE). Compared to CEE, the stable mass-transfer process can le…
Formation of Extremely Low-mass White Dwarf Binaries Undergoing Enhanced Angular Momentum Loss
Ziqi Zhao, Zhenwei Li, Zhengwei Liu +6
Extremely low-mass white dwarfs (ELM WDs) are helium (He) WDs with masses below , mainly formed through binary interaction. ELM WD binaries typically are forme…
Asteroseismic rotation rates of hot subdwarf B stars hint at transient accretion from leftover common envelope matter
Facundo D. Moyano, Hongwei Ge, Zhanwen Han +6
Asteroseismology enabled measuring the rotation rate in the deep stellar interiors of stars across several evolutionary phases, advancing the theory of angular momentum transport i…
Adiabatic Mass Loss In Binary Stars. VI. Massive Helium Binary Stars
Lifu Zhang, Hongwei Ge, Zhenwei Li +6
The stability of binary mass transfer is a critical problem for binary evolution. We systematically calculate the adiabatic mass-loss model for naked helium stars with masses rangi…
A Path to Constraints on Common Envelope Ejection in Massive Binaries: Full Evolutionary Reconstruction of Three Black Hole X-ray Binaries
Zhenwei Li, Dandan Wei, Shi Jia +6
The massive binary common envelope (CE) phase plays a pivotal role in the formation of close black hole/neutron star (BH/NS) binaries, yet significant uncertainties remain in our u…
A New Pathway to Single Be Stars: Ejected Companions from Type Ia Supernovae
Yuchen Bao, Zhenwei Li, Hongwei Ge +4
Be stars are rapid rotators generally produced by binary interactions. The single Be stars in the observations pose challenges to the Be star formation theory. In this paper, we pr…
Expected evolution of the binary system ATLAS J1138-5139
Jing-Qi Chen, Hai-Liang Chen, Zheng-Wei Liu +2
ATLAS J1138-5139 is a newly detected ultra-compact double white dwarf (DWD) system which is composed of a carbon-oxygen white dwarf (CO WD) and a $0.24\,M_{\odot}…
Formation of Be stars via wind accretion: Case study on Black hole + Be star binaries
Zhenwei Li, Shi Jia, Dandan Wei +5
Be stars are rapidly rotating main-sequence (MS) stars that play a crucial role in understanding stellar evolution and binary interactions. In this letter, we propose a new formati…
The origin of B-type runaway stars based on kinematics
Yanjun Guo, Chao Liu, ZhiCun Liu +5
Runaway stars depart their birthplaces with high peculiar velocities. Two mechanisms are commonly invoked to explain their origin, the binary supernova scenario (BSS) and the dynam…
The relation between helium white dwarf mass and orbital period under two types of opacity
Jian Mou, Hai-Liang Chen, Dengkai Jiang +5
Helium white dwarfs (He WDs) are end products of low-mass red giant donors in close binary systems via stable mass transfer or common envelope evolution. At the end of stable mass…
A Be Star + He Star Binary as an Indicator of a Binary Mass Transfer Phase
Yuchen Bao, Zhenwei Li, Hongwei Ge +2
The rapid rotation of Be stars is supposed to mainly originate from binary evolution. In recent years, more and more Be stars with helium (He) star companions have been discovered,…
Mass Transfer Physics in Binary Stars and Applications in Gravitational Wave Sources
Hongwei Ge, Zhanwen Han
The stability criteria of rapid mass transfer and common-envelope evolution are fundamental in binary star evolution. They determine the mass, mass ratio, and orbital distribution…
Constraints on Common Envelope Ejection from Double Helium White Dwarfs
Yangyang Zhang, Zhenwei Li, Xuefei Chen +1
Double helium white dwarfs (He WDs) are one type of gravitational wave source and are greatly important in the studies of binary interaction, particularly in the common envelope (C…
Adiabatic Mass Loss in Binary Stars. V. Effects of Metallicity and Nonconservative Mass Transfer -- Application in High Mass X-ray Binaries
Hongwei Ge, Christopher Adam Tout, Xuefei Chen +5
Binary stars are responsible for many unusual astrophysical phenomena, including some important explosive cosmic events. The stability criteria for rapid mass transfer and common-e…
Properties of Radial Velocities measurement based on LAMOST-II Medium-Resolution Spectroscopic Observations
R. Wang, A. -L. Luo, J. -J. Chen +28
The radial velocity (RV) is a basic physical quantity which can be determined through Doppler shift of the spectrum of a star. The precision of RV measurement depends on the resolu…
Subdwarf B stars from the common envelope ejection channel
H. Xiong, X. Chen, P. Podsiadlowski +2
From the canonical binary scenario, the majority of sdBs are produced from low-mass stars with degenerate cores where helium is ignited in a way of flashes. Due to numerical diffic…
Synthetic horizontal branch morphology for different metallicities and ages under tidally enhanced stellar wind
Z. lei, F. Zhang, H. Ge +1
It is believed that, except for metallicity, some other parameters are needed to explain the horizontal branch (HB) morphology of globular clusters (GCs). Furthermore, these parame…