10 papers
Celephais: efficient spectral initial data code for precessing compact binaries
Hao-Jui Kuan
Large numerical-relativity surveys require compact-binary initial data that are both spectrally accurate and inexpensive to construct, including for systems with unequal masses and…
Donutization Inside Neutron Stars: Shell-Localized Scalar Fields
Hao-Jui Kuan, Alan Tsz-Lok Lam, Jacquelyn Noronha-Hostler +1
Heavy scalar fields ( eV) in scalar-tensor gravity are expected to be hidden from neutron-star observations because their Compton wavelength is sub-stellar. We…
Nonradial oscillations of stratified neutron stars with solid crusts: Mode characterization and tidal resonances in coalescing binaries
Yong Gao, Hao-Jui Kuan, Cheng-Jun Xia +2
Dynamical tides of neutron stars in the late stages of binary inspirals provide a viable probe into dense matter through gravitational waves, and potentially trigger electromagneti…
Convective stability analysis of massive neutron stars formed in binary mergers
Yong Gao, Kota Hayashi, Kenta Kiuchi +3
We perform fully general-relativistic hydrodynamics simulations of binary neutron star mergers over post-merger to investigate the dynamics of remnant massive neutron…
Difference between quark stars and neutron stars in universal relations and their effect on gravitational waves
Duanyuan Gao, Hao-Jui Kuan, Yurui Zhou +4
We calculate the -mode frequency and tidal overlap of quark stars using the full general relativity method. We verify the universal relations obtained from conventional neutron…
Tidal Resonance in Binary Neutron Star Inspirals: A High-Precision Study in Numerical Relativity
Hao-Jui Kuan, Kenta Kiuchi, Masaru Shibata
We investigate the tidal resonance of the fundamental (-)mode in spinning neutron stars, robustly tracing the onset of the excitation to its saturation, using numerical relativi…