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14 papers · 2 filters
Narrowband searches for continuous and long-duration transient gravitational waves from known pulsars in the LIGO-Virgo third observing run
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1658
Isolated neutron stars that are asymmetric with respect to their spin axis are possible sources of detectable continuous gravitational waves. This paper presents a fully-coherent s…
Search of the Early O3 LIGO Data for Continuous Gravitational Waves from the Cassiopeia A and Vela Jr. Supernova Remnants
The LIGO Scientific Collaboration, the Virgo Collaboration, R. Abbott +1411
We present directed searches for continuous gravitational waves from the neutron stars in the Cassiopeia A (Cas A) and Vela Jr. supernova remnants. We carry out the searches in the…
All-sky, all-frequency directional search for persistent gravitational-waves from Advanced LIGO's and Advanced Virgo's first three observing runs
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1627
We present the first results from an all-sky all-frequency (ASAF) search for an anisotropic stochastic gravitational-wave background using the data from the first three observing r…
Non-Abelian Wormholes Threaded by a Yang-Mills-Higgs Field beyond the BPS Limit
Xiao Yan Chew, Kok-Geng Lim
We construct numerically the symmetric non-Abelian wormholes which are supported by a phantom field in the Einstein-Yang-Mills-Higgs theory beyond Bogomol'nyi-Prasad-Sommerfield (B…
Traversable Wormhole in Einstein 3-Form Theory With Self-Interacting Potential
Mariam Bouhmadi-López, Che-Yu Chen, Xiao Yan Chew +2
We numerically construct a symmetric wormhole solution in pure Einstein gravity supported by a massive -form field with a potential that contains a quartic self-interaction term…
Annihilation-to-nothing: DeWitt boundary condition inside a black hole
Suddhasattwa Brahma, Che-Yu Chen, Dong-han Yeom
In canonical quantum gravity, the wave function for a hypersurface inside a Schwarzschild black hole can be obtained by solving the Wheeler-DeWitt equation. What is of prime import…