-
61
Nonthermal heavy dark matter from a first-order phase transition
Published 2024-12-01“…Using our improved results, we find that scalar, fermion, and vector dark matter are all viable across a large range of mass scales, from O $$ \mathcal{O} $$ (10) TeV to a few orders of magnitude below the Planck scale, and the corresponding phase transitions can be probed with current and future gravitational wave experiments.…”
Get full text
Article -
62
Quasinormal modes and GUP-corrected Hawking radiation of BTZ black holes within modified gravity frameworks
Published 2025-02-01“…The study concludes that modified gravity parameters significantly influence QNM frequencies and effective potential profiles, offering insights into black hole stability and suggesting that these theoretical predictions may be tested through gravitational wave observations.…”
Get full text
Article -
63
Reduction of absorption of Ta2O5 monolayers through the suppression of structural defects by employing an appropriate ionic oxygen concentration
Published 2025-02-01“…Abstract Ultralow-absorption laser films have critical applications in high-power continuous-laser and gravitational-wave-detection systems. During film deposition, the ionic oxygen concentration significantly affects the absorption loss of the film. …”
Get full text
Article -
64
Gravitational odd-parity perturbation of a Horndeski hairy black hole: quasinormal mode and parameter constraint
Published 2025-01-01“…Abstract During the binary black hole coalescence, gravitational waves emitted at the ringdown stage can be well described by black hole perturbation theory, where the quasinormal modes (QNMs) become the important ingredient in modeling the pattern waveform. …”
Get full text
Article -
65
Simulation analysis of radiometer effect and outgassing based on molecular particle source perturbation
Published 2025-01-01“…Abstract The Laser Interferometer Space Antenna (LISA) mission is designed to detect space gravitational wave sources in the millihertz band. A critical factor in the success of this mission is the residual acceleration noise metric of the internal test mass (TM) within the ultra-precise inertial sensors. …”
Get full text
Article -
66
Analytical and Numerical Methods for Circumbinary Disk Dynamics. II. Inclined Disks
Published 2025-01-01“…These findings have implications for understanding both the expected gravitational-wave signal and electromagnetic counterparts from supermassive black hole binaries.…”
Get full text
Article -
67
X-ray pulsed light curves of highly compact neutron stars as probes of scalar–tensor theories of gravity
Published 2024-12-01“…Consequently, scalar parameters might be better constrained when uncertainties in NS radii decrease, where this could occur with the advent of next-generation gravitational wave detectors, such as the Einstein Telescope and LISA, as well as future electromagnetic missions like eXTP and ATHENA. …”
Get full text
Article -
68
Black Hole Accretion and Spin-up through Stellar Collisions in Dense Star Clusters
Published 2025-01-01“…Dynamical interactions in dense star clusters could significantly influence the properties of black holes, leaving imprints on their gravitational-wave signatures. While previous studies have mostly focused on repeated black hole mergers for spin and mass growth, this work examines the impact of physical collisions and close encounters between black holes and (noncompact) stars. …”
Get full text
Article -
69
All-fiber delivery of 100 W single-frequency laser through 100 m anti-resonant hollow-core fiber without stimulated Brillouin scattering
Published 2024-01-01“…This all-fiber architecture ensures high stability, compactness and efficiency, potentially expanding the application scope of single-frequency lasers in high-precision metrology, optical communication, light detection and ranging systems, gravitational wave detection and other advanced applications.…”
Get full text
Article -
70
-
71
Improving the Determination of Supernova Cosmological Redshifts by Using Galaxy Groups
Published 2025-01-01Get full text
Article -
72
Late-time Radio Brightening and Emergence of a Radio Jet in the Changing-look AGN 1ES 1927+654
Published 2025-01-01Get full text
Article -
73
Dynamics of Cylindrical Collapse in Palatini Gravity
Published 2024-01-01“…Lastly, we investigate the correlation between dark matter and gravitational waves and find that exotic terms disrupt the transmission of gravitational waves. …”
Get full text
Article -
74
Multimessengers from Core-Collapse Supernovae: Multidimensionality as a Key to Bridge Theory and Observation
Published 2012-01-01“…The only means to get direct information about the supernova engine is from observations of neutrinos emitted by the forming neutron star, and through gravitational waves which are produced when the hydrodynamic flow or the neutrino flux is not perfectly spherically symmetric. …”
Get full text
Article -
75
Propagating Degrees of Freedom in f(R) Gravity
Published 2016-01-01“…We have computed the number of polarization modes of gravitational waves propagating in the Minkowski background in f(R) gravity. …”
Get full text
Article -
76
On destabilising quasi-normal modes with a radially concentrated perturbation
Published 2025-01-01“…The model is that of a small bump perturbation to the effective potential of linear axial gravitational waves on a Schwarzschild background, and our focus is on three different aspects of the instability: identifying and distinguishing between the two different types of instabilities studied previously in the literature, quantifying the size of the perturbations applied to the system and testing the validity of the pseudospectral numerical method in providing a convergent result for this measure, and finally, relating the size and other features of the perturbation to the degree of destabilisation of the spectrum.…”
Get full text
Article -
77
Spacetime Junctions and the Collapse to Black Holes in Higher Dimensions
Published 2012-01-01“…The vacuum exterior solutions are either static or containing gravitational waves. We then review the global geometrical properties of the matched solutions which, besides black holes, may include the existence of naked singularities and wormholes. …”
Get full text
Article -
78
Axial Symmetry Cosmological Constant Vacuum Solution of Field Equations with a Curvature Singularity, Closed Time-Like Curves, and Deviation of Geodesics
Published 2020-01-01“…We wish to discuss the physical properties and show that this solution can be interpreted as gravitational waves of Coulomb-type propagate on anti-de Sitter space backgrounds. …”
Get full text
Article -
79
Towards analogue black hole merger
Published 2024-04-01“…For a pair of vortices, we find an analogue of the 3rd Kepler’s law and estimate the emission rate of the gravitational waves. We simulate an analogue of the inspiral phase of a black hole merger. …”
Get full text
Article -
80
Sledgehamr: Simulating Scalar Fields with Adaptive Mesh Refinement
Published 2025-01-01“…While the code had been primarily developed to evolve axion string networks, this framework enables various other applications, such as the study of gravitational waves sourced by the dynamics of scalar fields.…”
Get full text
Article