Here basic aim is to study the properties of Gravitational Waves (GWs) in this new model. In f(R) gravity metric formalism, the model shows the existence of scalar degree of freedom as like other f(R) gravity models. Due to this reason, there is a scalar mode of polarization of GWs ...
Gravitational fields invariant for a 2-dimensional Lie algebra ofKilling fields [X,Y]=Y, with Y of light type, are analyzed. The conditions for them to represent gravitational waves areverified and the definition of energy and polarization is addressed;realistic generating sources are described.关键...
The energy flux has all the properties one would anticipate by analogy with electromagnetic waves: (a) it is conserved (the amplitude dies out as 1 / r, the flux as 1 / r2), (b) it can be absorbed by detectors, and (c) it can generate curvature like any other energy source in ...
In general relativity, gravitational waves are wave-like metrics which radiate energy, and Bondi-Sachs metrics are one of natural metrics describing them. In this paper, we provide a short review on positivity of the Bondi energy-momentum and the relation between the Bondi energy-momentum and the...
3.3 Kundt and Brinkmann metrics Now we focus our interest in the concept of plane-fronted waves. Kundt defined them in [27], a definition that was also presented in [42, p. 85–86] together with a theorem that intro- duces a characterization: a plane-fronted wave is a vacuum field ...
(I hope you are all imagining abloopy chirpto accompany this). We had never before observed a binary black hole system. However, binary black holes have proved to be the most common source of gravitational waves, and we are now starting to understand their properties. We found our next ...
2 First post-Newtonian generation of gravitational waves in Einstein–Cartan theory We briefly recall the essential information on EC theory and set up the mathematical tools in Sect. 2.1. After that, we intro- duce the mathematical framework related to the GW genera- tion problem in EC theory...
The resulting solutions are called the quasinormal modes (QNMs), which are central to the analysis of gravitational waves. One could alternatively keep only the ingoing modes at infinity by using what is called the 'totally transmissive' condition and set A = 0. In asymptotically AdS spaces, ...
Gravitational Waves in General Relativity. VIII. Waves in Asymptotically Flat Space-Time Gravitational fields containing bounded sources and gravitational radiation are examined by analyzing their properties at spatial infinity. A convenient wa... RK Sachs - 《Proceedings of the Royal Society of London》...
Tokyo Tech’s development of Kerr-enhanced optical springs significantly boosts gravitational wave detectors’ sensitivity, enabling better detection of cosmic events and advancing our understanding of the universe. The detection ofgravitational wavesstands as one of the most significant achievement...