Stochastic gravitational wave background generated by cosmic string networks: The small-loop regime

• Tipo: Artigo em Revista Científica Internacional
• Data: 2014

Autores

Sousa, L (Autor) Outra; Avelino, PP (Autor) FCUP

Revista

Título: Physical Review D - Particles, Fields, Gravitation and Cosmology

Vol. 89 Nº 4

ISSN: 1550-7998

Editora: American Physical Society

Indexação

ISI Web of Knowledge - 12 Citações

Scopus - 14 Citações

Outras Informações

ID Authenticus: P-009-T80

DOI: 10.1103/physrevd.89.083503

Abstract (EN): We consider an alternative approach for the computation of the stochastic gravitational wave background generated by small loops produced throughout the cosmological evolution of cosmic string networks and use it to derive an analytical approximation to the corresponding power spectrum. We show that this approximation produces an excellent fit to more elaborate results obtained using the velocity-dependent one-scale model to describe cosmic string network dynamics, over a wide frequency range, in the small-loop regime.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6