Memory Effect or Cosmic String? Classifying Gravitational-Wave Bursts with Bayesian Inference

Autor:	Divakarla, Atul K., Thrane, Eric, Lasky, Paul D., Whiting, Bernard F.
Rok vydání:	2019
Předmět:	General Relativity and Quantum Cosmology
Zdroj:	Phys. Rev. D 102, 023010 (2020)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.102.023010
Popis:	A variety of gravitational-wave transient sources can be modeled in the Fourier domain using a power law. This simple power-law model provides a reasonable approximation for gravitational-wave bursts from cosmic string cusps, cosmic string kinks, and the memory effect. Each of these sources is described using a different spectral index. In this work, we simulate interferometer strain data with injections of power-law and memory bursts to demonstrate parameter estimation, signal detection, and model selection. We show how Bayesian inference can be used to measure the power-law spectral index, thereby distinguishing between different astrophysical scenarios. Comment: 7 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1911.07998 Zobrazit plný text záznamu View this record from Arxiv