11 citations · 68 across the 18 of their papers we have counts for
20 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…
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…
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…
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…
Formation of GW230529 from Isolated Binary Evolution
Jin-Ping Zhu, Rui-Chong Hu, Yacheng Kang +4
In this {\em{Letter}}, we explore the formation of the mass-gap black hole-neutron star (mgBHNS) merger detected in gravitational wave (GW) event, i.e., GW230529, from the isolated…
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…
Neutron stars more compact than black holes as a probe of strong-field gravity
Shoulong Li, H. Lü, Yong Gao +3
Probing gravity in its strongest regime is a central goal of modern physics, as the nature of the most compact objects reflects fundamental aspects of Einstein's theory of general…
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…
Prospects for detecting neutron star-white dwarf mergers with decihertz gravitational-wave observatories
Yacheng Kang, Chang Liu, Jin-Ping Zhu +6
Based on different neutron star-white dwarf (NS-WD) population models, we investigate the prospects of gravitational-wave (GW) detections for NS-WD mergers, with the help of early…