Extending the velocity-dependent one-scale string evolution model

• Tipo: Artigo em Revista Científica Internacional
• Data: 2002

Autores

Martins, CJAP (Autor) Outra; Shellard, EPS (Autor) Outra

Revista

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

Vol. 65

ISSN: 1550-7998

Editora: American Physical Society

Indexação

ISI Web of Knowledge - 86 Citações

Scopus - 92 Citações

Outras Informações

ID Authenticus: P-000-QAJ

DOI: 10.1103/physrevd.65.043514

Abstract (EN): We provide a general overview of the velocity-dependent one-scale model for cosmic string evolution and discuss two further extensions to it. We introduce and justify a new ansatz for the momentum parameter k, and also incorporate the effect of radiation back reaction. We thus discuss the evolution of the basic large-scale features of cosmic string networks in all relevant cosmological scenarios, concentrating in-particular on the "scaling" solutions relevant for each case. In a companion paper, we show, by comparing with numerical simulations, that this model provides an accurate description of the large-scale features of cosmic string networks.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11