Zobrazeno 1 - 10
of 506
pro vyhledávání: '"Font, José"'
In the study of rotating neutron stars the $I$-Love-$Q$ relations refer to the existence of various approximate, equation of state-independent relations involving the moment of inertia, the Love number and the quadrupole moment. These relations are r
Externí odkaz:
http://arxiv.org/abs/2407.20151
Measuring accurate long-duration gravitational waves from extreme mass ratio inspirals (EMRIs) could provide scientifically fruitful knowledge of massive black hole populations and robust tests for general relatively during the LISA mission. However,
Externí odkaz:
http://arxiv.org/abs/2407.02908
Autor:
Badger, Charles, Srinivasan, Rahul, Torres-Forné, Alejandro, Bizouard, Marie Anne, Font, José A., Sakellariadou, Mairi, Lamberts, Astrid
Current gravitational wave (GW) detection pipelines for compact binary coalescence based on matched-filtering have reported over 90 confident detections during the first three observing runs of the LIGO-Virgo-KAGRA (LVK) detector network. Decreasing
Externí odkaz:
http://arxiv.org/abs/2405.17721
Publikováno v:
Phys.Rev.D 109 (2024) 12, 124064
In this paper, we apply a novel approach based on physics-informed neural networks to the computation of quasinormal modes of black hole solutions in modified gravity. In particular, we focus on the case of Einstein-scalar-Gauss-Bonnet theory, with s
Externí odkaz:
http://arxiv.org/abs/2404.11583
Autor:
Luna, Raimon, Llorens-Monteagudo, Miquel, Lorenzo-Medina, Ana, Bustillo, Juan Calderón, Sanchis-Gual, Nicolas, Torres-Forné, Alejandro, Font, José A., Herdeiro, Carlos A. R., Radu, Eugen
Publikováno v:
Phys.Rev.D 110 (2024) 2, 024004
We present several high-accuracy surrogate models for gravitational-wave signals from equal-mass head-on mergers of Proca stars, computed through the Newman-Penrose scalar $\psi_4$. We also discuss the current state of the model extensions to mergers
Externí odkaz:
http://arxiv.org/abs/2404.01395
Autor:
Nunes, Solange, Escrig, Gabriel, Freitas, Osvaldo G., Font, José A., Fernandes, Tiago, Onofre, Antonio, Torres-Forné, Alejandro
We test deep-learning (DL) techniques for the analysis of rotational core-collapse supernovae (CCSN) gravitational-wave (GW) signals by performing classification and parameter inference of the maximum (peak) frequency and the GW strain amplitude ($\D
Externí odkaz:
http://arxiv.org/abs/2403.04938
Publikováno v:
Phys. Rev. D 109, 064032 (2024)
Explaining gravitational-wave (GW) observations of binary neutron star (BNS) mergers requires an understanding of matter beyond nuclear saturation density. Our current knowledge of the properties of high-density matter relies on electromagnetic and G
Externí odkaz:
http://arxiv.org/abs/2401.06849
We explore the prospects for identifying differences in simulated gravitational-wave signals of binary neutron star (BNS) mergers associated with the way thermal effects are incorporated in the numerical-relativity modelling. We consider a hybrid app
Externí odkaz:
http://arxiv.org/abs/2401.02493
Autor:
Powell, Jade, Iess, Alberto, Llorens-Monteagudo, Miquel, Obergaulinger, Martin, Müller, Bernhard, Torres-Forné, Alejandro, Cuoco, Elena, Font, José A.
Gravitational waves are emitted from deep within a core-collapse supernova, which may enable us to determine the mechanism of the explosion from a gravitational-wave detection. Previous studies suggested that it is possible to determine if the explos
Externí odkaz:
http://arxiv.org/abs/2311.18221
Autor:
Villa-Ortega, Verónica, Lorenzo-Medina, Ana, Bustillo, Juan Calderón, Ruiz, Milton, Guerra, Davide, Cerdá-Duran, Pablo, Font, José A.
We assess the impact of accurate, self-consistent modelling of thermal effects in neutron-star merger remnants in the context of third-generation gravitational-wave detectors. This is done through the usage, in Bayesian model selection experiments, o
Externí odkaz:
http://arxiv.org/abs/2310.20378