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7 papers · 2 filters
A novel test of gravity via black hole eikonal correspondence
Che-Yu Chen, Yu-Jui Chen, Meng-Yuan Ho +1
When adopted in black hole spacetimes, geometric-optics approximations imply a mapping between the quasinormal mode (QNM) spectrum of black holes in the eikonal limit and black hol…
-mode Imprints in Gravitational Waves from Coalescing Binaries involving Aligned Spinning Neutron Stars
Hao-Jui Kuan, Kostas D. Kokkotas
The excitation of -mode in a neutron star member of coalescing binaries accelerates the merger course, and thereby introduces a phase shift in the gravitational waveform. Emphas…
Constraining equation of state groups from -mode asteroseismology
Hao-Jui Kuan, Christian J. Krüger, Arthur G. Suvorov +1
Buoyancy-restored modes inside neutron stars depend sensitively on both the microphysical (e.g., composition and entropy gradients) and macrophysical (e.g., stellar mass and radius…
Gravitational waves from accretion-induced descalarization in massive scalar-tensor theory
Hao-Jui Kuan, Arthur G. Suvorov, Daniela D. Doneva +1
Many classes of extended scalar-tensor theories predict that dynamical instabilities can take place at high energies, leading to the formation of scalarized neutron stars. Dependin…
First joint observation by the underground gravitational-wave detector, KAGRA, with GEO600
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1669
We report the results of the first joint observation of the KAGRA detector with GEO600. KAGRA is a cryogenic and underground gravitational-wave detector consisting of a laser inter…
Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1669
Results are presented for a semi-coherent search for continuous gravitational waves from the low-mass X-ray binary Scorpius X-1, using a hidden Markov model (HMM) to allow for spin…