89 citations · 1k across the 60 of their papers we have counts for
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Updated estimates of post-merger gravitational wave energy released in GW170817 and the maximum neutron star mass
Yong Chen, Bo Gao, Yong-Jia Huang +2
In this work, benefiting from the increased sample of neutron stars with measured masses and radii as well as the incorporation of the chiral effective field theory and perturbativ…
Population-Level Verification of the Black-Hole Area Law with First- and Second-Generation Black Holes
Shao-Peng Tang, Yin-Jie Li, Yi-Zhong Fan
Hawking's area theorem states that the total event-horizon area of classical black holes can never decrease. Gravitational-wave tests of this law have so far focused on individual…
Smoking-gun evidence for hierarchical black-hole mergers
Yin-Jie Li, Yuan-Zhu Wang, Shao-Peng Tang +1
How stellar-mass black holes grow after their birth is a central open question in astrophysics. Gravitational-wave observations have revealed a subpopulation of coalescing black ho…
Neutron Star Observations Challenge a Large Colour-Superconducting Gap in Dense Quark Matter
Shao-Peng Tang, Yong-Jia Huang, Yi-Zhong Fan
At asymptotically high density, quantum chromodynamics (QCD) predicts that quark matter becomes a colour superconductor in the colour-flavour-locked (CFL) phase, yet, away from the…
The Non-parametric Equation of State Realizes a Generalized Quark-Hadron Crossover
Yong-Jia Huang, Shao-Peng Tang, Yi-Zhong Fan
We propose a non-parametric approach to construct the statistical equation of state (EOS) continuously from the nuclear crust to the asymptotic-freedom regime. The combined require…
Neutron Star Merger Rates from Multi-messenger Observations: Clues to the Physical Origin of the Short and Long-short Gamma-ray Bursts
Zhi-Ping Jin, Yuan-Zhu Wang, Yin-Jie Li +4
Short and long-short gamma-ray bursts (GRBs) are widely believed to be powered by neutron star mergers. In this work, we calculate local rate of such GRBs and find a relatively hig…
A new group of low-spin Black Holes and the high pair-instability mass cutoff
Yuan-Zhu Wang, Yin-Jie Li, Shi-Jie Gao +2
Pair-instability supernovae (PISN) will not leave compact remnants and hence yield a mass gap of the black holes. Though a transition point at , separating low-…
Aligned Hierarchical Black Hole Mergers in Active-Galactic-Nuclei Disks Revealed by GWTC-4
Yin-Jie Li, Yuan-Zhu Wang, Shao-Peng Tang +1
The active galactic nucleus (AGN) accretion disks are ideal sites for hierarchical black hole (BH) mergers. To robustly probe such a possibility, we analyze binary black hole merge…
GW231123: Likely a product of successive mergers from stellar-mass black holes
Yin-Jie Li, Shao-Peng Tang, Ling-Qin Xue +1
GW231123 is an exceptionally massive binary black hole (BBH) merger with unusually high component spins. Such extreme properties challenge conventional stellar evolution models pre…
Phase transition and nuclear symmetry energy from neutron star observations: Constraints in light of PSR J0614--3329
Shao-Peng Tang, Yong-Jia Huang, Yi-Zhong Fan
The possible occurrence of a first-order hadron-quark phase transition (FOPT) in neutron-star interiors remains an open question. Whether such a transition can be directly tested w…
The maximum mass and rotational kinetic energy of rapidly rotating neutron stars
Shao-Peng Tang, Yong-Jia Huang, Yi-Zhong Fan
Rapid uniformly-rotating neutron stars are expected to be formed for instance in the collapse of some massive stars, the accretion of compact object binaries, and double neutron st…
Revealing the - Correlation among Coalescing Binary Black Holes and Tentative Evidence for AGN-driven Hierarchical Mergers
Yin-Jie Li, Yuan-Zhu Wang, Shao-Peng Tang +2
The origin of the correlation between the effective spins () and mass ratios () of LIGO-Virgo-KAGRA's binary black holes (BBHs) is still an open question. Motivated…
Bulk properties of PSR J0030+0451 inferred with the compactness measurement of NICER
Chuan-Ning Luo, Shao-Peng Tang, Ming-Zhe Han +3
In 2019, Neutron star Interior Composition ExploreR (NICER) mission released its findings on the mass and radius of the isolated neutron star (INS) PSR J0030+0451, revealing a mass…
Exploring field-evolution and dynamical-capture coalescing binary black holes in GWTC-3
Yin-Jie Li, Shao-Peng Tang, Shi-Jie Gao +2
We investigate formation channels for merging binary black holes (BBHs) in GWTC-3, with a dedicated semiparametric population model. The model first describes or excludes a high-sp…
Upper Limit of Sound Speed in Nuclear Matter: A Harmonious Interplay of Transport Calculation and Perturbative Quantum Chromodynamic Constraint
Shao-Peng Tang, Yong-Jia Huang, Ming-Zhe Han +1
Very recently, it has been shown that there is an upper bound on the squared sound speed of nuclear matter from the transport, which reads . In this work, w…
The Bulk Properties of Isolated Neutron Stars Inferred from the Gravitational Redshift Measurements
Chuan-Ning Luo, Shao-Peng Tang, Jing-Liang Jiang +2
The measurements of the bulk properties of most isolated neutron stars (INSs) are challenging tasks. Tang et al. (2020) have developed a new method, based on the equation of state…
Mass and radius of the most massive neutron star: The probe of the equation of state and perturbative QCD
Shao-Peng Tang, Ming-Zhe Han, Yong-Jia Huang +2
Recently, an association of GW190425 and FRB 20190425A had been claimed and a highly magnetized neutron star (NS) remnant was speculated. Given the -h delay of the occurr…
Measuring Mass and Radius of the Maximum-mass Nonrotating Neutron Star
Shao-Peng Tang, Bo Gao, Yin-Jie Li +2
The mass () and radius () of the maximum-mass nonrotating neutron star (NS) play a crucial role in constraining the elusive equation of state of cold dens…
Maximum gravitational mass inferred at about precision with multimessenger data of neutron stars
Yi-Zhong Fan, Ming-Zhe Han, Jin-Liang Jiang +2
The maximal gravitational mass of nonrotating neutron stars () is one of the key parameters of compact objects and only loose bounds can be set based on the first prin…
Resolving the Stellar-Collapse and Hierarchical-Merger origins of the Coalescing Black Holes
Yin-Jie Li, Yuan-Zhu Wang, Shao-Peng Tang +1
Spin and mass properties provide essential clues in distinguishing the origins of coalescing black holes (BHs). With a dedicated semiparametric population model for the coalescing…
Potential Subpopulations and Assembling Tendency of the Merging Black Holes
Yuan-Zhu Wang, Yin-Jie Li, Jorick S. Vink +4
The origins of coalescing binary black holes (BBHs) detected by the advanced LIGO/Virgo are still under debate, and clues may be present in the joint mass-spin distribution of thes…
The late afterglow of GW170817/GRB170817A: a large viewing angle and the shift of the Hubble constant to a value more consistent with the local measurements
Yi-Ying Wang, Shao-Peng Tang, Zhi-Ping Jin +1
The multi-messenger data of neutron star merger events are promising for constraining the Hubble constant. So far, GW170817 is still the unique gravitational wave event with multi-…
Plausible presence of new state in neutron stars with masses above
Ming-Zhe Han, Yong-Jia Huang, Shao-Peng Tang +1
We investigate the neutron star (NS) equation of state (EOS) by incorporating multi-messenger data of GW170817, PSR J0030+0451, PSR J0740+6620, and state-of-the-art theoretical pro…
Nonparametric Representation of Neutron Star Equation of State Using Variational Autoencoder
Ming-Zhe Han, Shao-Peng Tang, Yi-Zhong Fan
We introduce a new nonparametric representation of the neutron star (NS) equation of state (EoS) by using the variational autoencoder (VAE). As a deep neural network, the VAE is fr…