Nonlinear Degrees of Freedom of Born-Infeld New Massive GravityBorn-Infeld New Massive Gravity (BINMG) is an all-order curvature extension of New Massive Gravity in three dimensions, whose linearized spectrum around its unique maximally symmetric vacuum contains…Zeynep Su Koc, Bayram Tekin·Sep 11, 2026SaveLearn
The Wavelet Detection Filter: a real time unmodeled pipeline for gravitational wave transients, ranking coincidences with a graph neural networkAccurate waveform models are unavailable for many potential sources of gravitational wave transients, motivating searches that do not assume a predefined template family. The Wavelet Detection Filter…Elena Cuoco·Sep 11, 2026SaveLearn
Compact binary systems in the post-Newtonian limit of gravitational theories with preferred framesGravitational-wave observations of compact-binary inspirals offer the opportunity to test deviations from general relativity in both strong and weak-field regimes. In previous work, we developed a…Oliver Pitt, Timothy Clifton·Sep 11, 2026SaveLearn
Intrinsic pressure anisotropy in spherical Proca starsPressure anisotropy in relativistic stars is commonly prescribed through a phenomenological closure, obscuring its microscopic origin and relation to stress-energy conservation. Here it is derived…Ilídio Lopes·Sep 11, 2026SaveLearn
Shadows and Polarimetric Signatures of Rotating Simpson-Visser Black Holes with Thick Disk IlluminationIn this manuscript, we investigate the shadow and polarization images of a Simpson-Visser rotating black hole surrounded by a ballistic approximation accretion flow model. Solving the numerically…Bing-Bing Chen, Deyou Chen, Yu-Kang Wang et al.·Sep 11, 2026SaveLearn
A semicoherent resampling method for long-transient gravitational wave searches with applications to subsolar-mass primordial black-hole binariesResampling removes the modeled phase evolution of a frequency-evolving signal, transforming it into a monochromatic one. We introduce a novel implementation for long-transient gravitational-wave…Neil Lu, Cristiano Palomba, Ornella J. Piccinni et al.·Sep 11, 2026SaveLearn
Fold-Point Scaling and Phenomenological Cascade Closures in Regular Black Hole SpacetimesSemiclassical analyses of regular black holes suggest that inner-horizon instabilities can drive the trapped region to evaporate faster than the Hawking time and seed a transient anti-trapped region.…Hoang Van Quyet·Sep 10, 2026SaveLearn
Horizon Structure and Geodesic Properties of Simpson-Visser Black Holes in Einstein-Euler-Heisenberg TheoryWe investigate a regularized charged black hole (BH) spacetime constructed by applying the Simpson-Visser (SV) prescription to a BH in Einstein-Euler-Heisenberg (EEH) theory. The resulting…Ahmad Al-Badawi·Sep 10, 2026SaveLearn
Dynamics for Spin-1/2 Particles in Einstein-Gauss-Bonnet Gravity II: Non-Relativistic CaseIn this work, I investigate the non-relativistic quantum dynamics of spin-1/2 particles in Einstein-Gauss-Bonnet (EGB) gravity and establish a direct connection between higher-curvature corrections,…E. Maciel·Sep 10, 2026SaveLearn
Classical and quantum perspectives on temperature in accelerated framesWe study the notion of temperature in uniformly accelerated frames within a relativistic thermodynamic framework. Considering a perfect fluid at rest in a non-inertial (Rindler) frame, we derive the…Babak Vakili·Sep 10, 2026SaveLearn
Distinguishing Dymnikova and Schwarzschild Black Holes through Gravitational Lensing with EFT-Corrected Photon PropagationWe investigate whether a Dymnikova regular black hole can be observationally distinguished from a Schwarzschild black hole through strong gravitational lensing, taking into account effective field…Takamasa Kanai·Sep 10, 2026SaveLearn
Accretion onto a moving black hole for stiff equations of stateWe revisit accretion of an asymptotically uniform fluid onto a moving Schwarzschild black hole, the relativistic analog of Bondi-Hoyle-Lyttleton accretion. Expanding on previous treatments, we focus…Elliott Ewell, Peter K. Harris, Thomas W. Baumgarte et al.·Sep 10, 2026SaveLearn
Constraining Ultralight Scalars with Black Hole Binary Mergers in Galactic NucleiUltralight scalars can form long-lived, macroscopic bound states around spinning black holes, known as superradiance clouds. These clouds provide an additional channel for energy dissipation during…Majed Khalaf, Eric Kuflik, Alessandro Lenoci et al.·Sep 10, 2026SaveLearn
Komar superpotentials in extended theories of gravityThis paper investigates Lagrangians with arbitrary dependence on the Riemann tensor and any number of derivatives. Noether's second theorem is applied separately to LG and $…H. Arthur Weldon·Sep 10, 2026SaveLearn
Sultana--Dyer Black Hole Spacetime and h-Almost Yamabe SolitonsThis paper investigates Yamabe-type soliton structures on the Sultana-Dyer (SD) black-hole spacetime. By employing the explicit metric and curvature quantities associated with the SD spacetime, we…Absos Ali Shaikh, Kamiruzzaman·Sep 10, 2026SaveLearn
Optical effects of one-sided Kiselev-type quintessence in reflection-asymmetric polymer thin-shell wormholesStrong-field rays that traverse a wormhole can carry optical information about an exterior inaccessible to the observer. We investigate this mechanism in a reflection-asymmetric thin-shell wormhole…Jonathan A. Rebouças, Edson Otoniel·Sep 10, 2026SaveLearn
Theoretical Aspects of Direct Waves in Kerr Black Holes: Pole-Splitting Method for Ringdown AnalysisWe formulate the theoretical aspects of direct waves (DWs) in the case of extreme-mass merger. A DW is a source-driven waveform characterized by a complex frequency ω G, which reflects the…Nao Nakamoto, Naritaka Oshita, Hiroki Takeda·Sep 10, 2026SaveLearn
Energy accreted onto a compact starWe compute the energy gained by accretion onto a compact star due to matter falling from the inner edge of a thin accretion disk. We employ a controlled slow-rotation expansion based on the…Kaiser Arf, Kai Schwenzer·Sep 10, 2026SaveLearn
Octupolar bremsstrahlung waveform up to the two-loop level and the third-and-a-half post-Newtonian accuracyExtending our recent work (which focussed on the even-parity quadrupolar part of the waveform), we compute the even-parity octupolar contribution, U3, to the gravitational waveform $W …Donato Bini, Thibault Damour, Andrea Geralico·Sep 10, 2026SaveLearn
Universal Structure of Horizon Formation in Generic Binary Black Hole MergersWe derive the local structure of the first common apparent horizon in a generic binary-black-hole merger. This event occurs in the fully nonlinear regime, outside the standard regimes of…Yu-Cun Xie, Vaishak Prasad·Sep 10, 2026SaveLearn
From the Test-Mass Limit to Binary Black-Hole Waveforms in Higher-Derivative GravityMany higher-derivative theories predict stronger deviations from General Relativity for lower-mass black holes, while their nonlinear field equations often prevent reliable simulations of the full…Chaoyi Yang, Neev Khera, Dongjun Li et al.·Sep 10, 2026SaveLearn
How much chaos can be generated by gravitational collapse before reaching the Planck scale?According to the Belinski-Khalatnikov-Lifshitz (BKL) conjecture the dynamics of general relativity near singularities is highly chaotic. However, since general relativity breaks down at…David Brizuela, Sara F. Uria, Edward Wilson-Ewing·Sep 10, 2026SaveLearn
Signatures of charged rotating regular black holes: quasinormal modes, grey-body factors and shadowsWe construct and study possible astrophysical signatures of the rotating counterparts of two charged regular black holes, namely the Ayón--Beato--García (ABG) and Balart--Panotopoulos--Rincón (BPR)…Abhisek Barman Maji·Sep 10, 2026SaveLearn
Gravitational lensing in a spacetime with extra dimensionsThis is the fourth paper of a series in which we consider the possibility to use cosmological extra dimensions to explain the accelerated expansion of the Universe and the rotation curve of spiral…Mattia Villani·Sep 10, 2026SaveLearn
Improving the Sensitivity of Gravitational Wave Detection with Weighted Conformal PredictionIn the last decade, kilometre-scale interferometric gravitational-wave detectors have observed hundreds of compact binary mergers, the majority of which are binary black holes. However, the data are…Ann-Kristin Malz, Gregory Ashton, Nicolo Colombo·Sep 10, 2026SaveLearn