12 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…
Neutron stars more compact than black holes as a probe of strong-field gravity
Shoulong Li, H. Lü, H. Lü +4
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…
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…