26 citations · 125 across the 23 of their papers we have counts for
25 papers
Probing an Intermediate-Mass Black Hole Companion of Sagittarius A* with Pulsar Timing
Zexin Hu, Lijing Shao
An intermediate-mass black hole (IMBH) hidden in our Galactic Center (GC) may explain the puzzling observations of the stellar distribution around Sagittarius A* (Sgr A*), the supe…
Galactic Centre Pulsars with the SKAO
F. Abbate, A. Carleo, S. Chatterjee +18
The detection of a pulsar closely orbiting our Galaxy's supermassive black hole - Sagittarius~A* - is one of the ultimate prizes in pulsar astrophysics. The relativistic effects ex…
Testing Gravity with Binary Pulsars in the SKA Era
V. Venkatraman Krishnan, L. Shao, V. Balakrishnan +21
Binary (and trinary) radio pulsars are natural laboratories in space for understanding gravity in the strong field regime, with many unique and precise tests carried out so far, in…
Granular mass perturbations on the pulsar - supermassive black hole system
Zexin Hu, Lijing Shao
Discovery and timing observations of a radio pulsar orbiting around Sagittarius A*, the supermassive black hole (SMBH) in our Galactic Centre (GC), will provide unprecedented oppor…
A Realistic Pulsar -- Supermassive Black Hole Timing Model
Zexin Hu, Ziming Wang, Lijing Shao
Timing observation of pulsars orbiting around a supermassive black hole (SMBH) can measure the spacetime around the SMBH to a high precision and thus be a novel probe of the gravit…
Testing Gravity with Binary Pulsars in the SKA Era
V. Venkatraman Krishnan, L. Shao, V. Balakrishnan +21
Binary (and trinary) radio pulsars are natural laboratories in space for understanding gravity in the strong field regime, with many unique and precise tests carried out so far, in…
Galactic Centre Pulsars with the SKAO
F. Abbate, A. Carleo, S. Chatterjee +19
The detection of a pulsar closely orbiting our Galaxy's supermassive black hole - Sagittarius A* - is one of the ultimate prizes in pulsar astrophysics. The relativistic effects ex…
Quasi-Normal Mode Ringing of Binary Black Hole Mergers in Scalar-Gauss-Bonnet Gravity
Zexin Hu, Daniela D. Doneva, Stoytcho S. Yazadjiev +1
Observations of gravitational waves (GWs) generated by binary black hole (BBH) mergers provide us with a powerful way to explore the strong and highly dynamical regime of gravity t…
Detecting ultralight dark matter in the Galactic Center with pulsars around Sgr A*
Jiang-Chuan Yu, Yan Cao, Zexin Hu +1
Ultralight dark matter (ULDM) model is a leading dark matter candidate that arises naturally in extensions of the Standard Model. In the Galactic Center, ULDM manifests as dense hy…
Ringdown mode amplitudes of charged binary black holes
Zexin Hu, Daniela D. Doneva, Ziming Wang +4
The ringdown phase of the binary black hole (BBH) merger provides a clean and direct probe of strong-field gravity and tests of the nature of black holes. The quasinormal mode (QNM…
Fundamental Physics with Pulsars around Sagittarius A
Lijing Shao, Zexin Hu
Searching for radio pulsars orbiting around the Galactic centre black hole (BH), Sagittarius A (Sgr A), represents a holy grail goal for large-area radio telescopes…
Linear analysis of I-C-Love universal relations for neutron stars
Zexin Hu, Yong Gao, Lijing Shao
Neutron stars (NSs) are excellent laboratories for testing gravity theories as they are strongly self-gravitating bodies and have rich observational phenomena. However, strong-fiel…
Rigorous analytic solution to the gravitational-wave overlapping event rates
Ziming Wang, Zexin Hu, Lijing Shao
In the era of the next-generation gravitational-wave detectors, signal overlaps will become prevalent due to high detection rate and long signal duration, posing significant challe…
Effects from Dark Matter Halos on X-ray Pulsar Pulse Profiles
Yukun Liu, Hong-Bo Li, Yong Gao +2
Neutron stars (NSs) can capture dark matter (DM) particles because of their deep gravitational potential and high density. The accumulated DM can affect the properties of NSs. In t…
Neutron stars in the bumblebee theory of gravity
Peixiang Ji, Zhuhai Li, Lirui Yang +3
Recently, theoretical studies on the bumblebee gravity model, a nonminimally-coupled vector-tensor theory that violates the Lorentz symmetry, have flourished, with a simultaneous i…
Measuring the Spin of the Galactic Center Supermassive Black Hole with Two Pulsars
Zexin Hu, Lijing Shao
As a key science project of the Square Kilometre Array (SKA), the discovery and timing observations of radio pulsars in the Galactic Center would provide high-precision measurement…
Probing the vector charge of Sagittarius A* with pulsar timing
Zexin Hu, Lijing Shao, Rui Xu +2
Timing a pulsar orbiting around Sagittarius A* (Sgr A*) can provide us with a unique opportunity of testing gravity theories. We investigate the detectability of a vector charge ca…
Prospects for probing small-scale dark matter models with pulsars around Sagittarius A*
Zexin Hu, Lijing Shao, Fupeng Zhang
Future observations with next-generation large-area radio telescopes are expected to discover radio pulsars (PSRs) closely orbiting around Sagittarius~A* (Sgr~A*), the supermassive…
Quasi-periodic oscillations during magnetar giant flares in the strangeon star model
Hong-Bo Li, Yacheng Kang, Zexin Hu +3
Soft gamma-ray repeaters (SGRs) are widely understood as slowly rotating isolated neutron stars. Their generally large spin-down rates, high magnetic fields, and strong outburst en…
Moment of Inertia for Axisymmetric Neutron Stars in the Standard-Model Extension
Yiming Dong, Zexin Hu, Rui Xu +1
We develop a consistent approach to calculate the moment of inertia (MOI) for axisymmetric neutron stars (NSs) in the Lorentz-violating Standard-Model Extension (SME) framework. To…
Terrain Diffusion Network: Climatic-Aware Terrain Generation with Geological Sketch Guidance
Zexin Hu, Kun Hu, Clinton Mo +2
Sketch-based terrain generation seeks to create realistic landscapes for virtual environments in various applications such as computer games, animation and virtual reality. Recentl…
Tests of Classical Gravity with Radio Pulsars
Zexin Hu, Xueli Miao, Lijing Shao
Tests of gravity are important to the development of our understanding of gravitation and spacetime. Binary pulsars provide a superb playground for testing gravity theories. In thi…
Prospects for Constraining the Yukawa Gravity with Pulsars around Sagittarius A*
Yiming Dong, Lijing Shao, Zexin Hu +2
The discovery of radio pulsars (PSRs) around the supermassive black hole (SMBH) in our Galactic Center (GC), Sagittarius A* (Sgr A*), will have significant implications for tests o…
Scalarized neutron stars in massive scalar-tensor gravity: X-ray pulsars and tidal deformability
Zexin Hu, Yong Gao, Rui Xu +1
Neutron stars (NSs) in scalar-tensor theories of gravitation with the phenomenon of spontaneous scalarization can develop significant deviations from general relativity. Cases with…