Cosmic-string-seeded structure formation

• Tipo: Artigo em Revista Científica Internacional
• Data: 1998

Autores

Avelino, PP (Autor) Outra; Shellard, EPS (Autor) Outra; Wu, JHP (Autor) Outra; Allen, B (Autor) Outra

Revista

Título: Physical Review Letters

Vol. 81

Páginas: 2008-2011

ISSN: 0031-9007

Editora: American Physical Society

Indexação

ISI Web of Knowledge - 46 Citações

Scopus - 42 Citações

Outras Informações

ID Authenticus: P-001-73N

DOI: 10.1103/physrevlett.81.2008

Abstract (EN): We describe the results of high-resolution numerical simulations of string-induced structure formation in open universes and those with a nonzero cosmological constant. For models with Gamma = Omega h = 0.1-0.2 and a cold dark matter background, we show that the linear density fluctuation power spectrum has both an amplitude at 8h(-1) Mpc, sigma(8), and an overall shape which are consistent within uncertainties with those currently inferred from galaxy surveys. The cosmic string scenario with hot dark matter requires a strongly scale-dependent bias in order to agree with observations.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4