Moderadores
Gravitational waves
- Alicia Sintes (Universitat de les Illes Balears)
Gravitational waves
- Alicia Sintes (Universitat de les Illes Balears)
In this talk I will present a brief overview of the current gravitational wave detections and some of the most important consequences we can derive. I will also mention the plans for the forthcoming observation runs. In the last part of the talk I will comment on how mathematics can contribute in the field of gravitational wave astronomy, focusing on formulations of General Relativity,...
Since 2015 the international advanced gravitational wave detector network has confidently detected tens of short transient signals, whose sources have been identified as mergers of compact objects, primarily binary systems of black holes. The main goal of this talk will be to discuss the phenomenon of precession in black hole binaries, as well as the first steps to further improve its...
Pulsars are spinning neutron stars which emit an electromagnetic beam. We expect pulsars to slowly decrease their rotational frequency due to the radiation emission. However, sudden increases of the rotational frequency have been observed from different pulsars. These events are called “glitches”, and are followed by a relaxation phase with timescales from days to months. Gravitational-wave...
When gravitational waves propagate near massive objects, they are deflected as a result of gravitational lensing. This phenomenon is already known for electromagnetic waves, and it is expected for gravitational waves to be a promising new instrument in astrophysics. When the time delay between the different paths is comparable with the wave’s period, interference and diffraction appear due to...
There is a potentially detectable background of stochastic gravitational waves produced by thermal sources in the Universe. In this work, we provide the first computation of the gravitational-wave spectrum emitted by a thermal plasma in a strongly-coupled theory: strongly-coupled N=4 Super Yang Mills. Given the non-applicability of perturbative methods in strong coupling computations, we...
In this talk, we present a re-analysis of different black hole merger gravitational wave events detected by the LIGO and Virgo interferometers with state-of-art phenomenological waveform models, IMRPhenomX and IMRPhenomT, which include higher spherical harmonics and spin precession. Due to their rapid and accurate evaluation of the waveforms, but also an automatisation of our Bayesian...
