Found 926 results, showing the newest relevant preprints. Sort by relevancy only.Update me on new preprints

Gravity waves in parity-violating Copernican Universes

In recent work minimal theories allowing the variation of the cosmological constant, $\Lambda$, by means of a balancing torsion have been proposed. Expand abstract.
10 days ago
9/10 relevant
arXiv

Electromagnetic precursors to gravitational wave events: Numerical simulations of flaring in pre-merger binary neutron star magnetospheres

The detection of gravitational waves from neutron star merger events has opened up a new field of multi-messenger astronomy linking gravitational waves events to short-gamma ray bursts and kilonova afterglows. Expand abstract.
11 days ago
5/10 relevant
arXiv

Cosmological constraints on dark energy in light of gravitational wave bounds

Gravitational wave (GW) constraints have recently been used to significantly restrict models of dark energy and modified gravity. Expand abstract.
12 days ago
4/10 relevant
arXiv

Signatures of Extended Theories of Gravity in Black Hole Oscillations

In general relativity, the Kerr metric uniquely represents the geometry surrounding an isolated, rotating black hole. Expand abstract.
19 days ago
4/10 relevant
arXiv

Asymptotic Shear and the Intrinsic Geometry of Null-Infinity

The tractor curvature encodes the presence of gravitational waves and the non-uniqueness of flat null-normal tractor connections correspond to the "degeneracy of gravity vacuum" that has been extensively discussed in the literature. Expand abstract.
22 days ago
4/10 relevant
arXiv

Nonsingular Ekpyrotic Cosmology with a Nearly Scale-Invariant Spectrum of Cosmological Perturbations and Gravitational Waves

The same mechanism converts the initial vacuum spectrum of cosmological fluctuations before the bounce into a scale-invariant one, and also changes the spectrum of gravitational waves into an almost scale-invariant one. Expand abstract.
25 days ago
7/10 relevant
arXiv

Core-Collapse Supernova Gravitational-Wave Search and Deep Learning Classification

We describe a search and classification procedure for gravitational waves emitted by core-collapse supernova (CCSN) explosions, using a convolutional neural network (CNN) combined with an event trigger generator known as Wavelet Detection Filter (WDF). Expand abstract.
26 days ago
4/10 relevant
arXiv

Gravitational waves in Modified Gauss-Bonnet gravity

We study the gravitational waves in modified Gauss-Bonnet gravity. Expand abstract.
34 days ago
10/10 relevant
arXiv

Primordial black holes and gravitational waves from parametric amplification of curvature perturbations

The primordial black hole could constitute all dark matter or a fraction of dark matter in the Universe, and corresponding stochastic gravitational waves fall in the frequency band measurable for the pulsar timing array and the space-based gravitational wave detectors. Expand abstract.
36 days ago
10/10 relevant
arXiv

How capillarity affects the propagation of elastic waves in soft gels

Elastic waves propagating at the interface of soft solids can be altered by the presence of external forces such as capillarity or gravity. Expand abstract.
39 days ago
4/10 relevant
arXiv