Primordial adiabatic fluctuations from cosmic defects

• Tipo: Artigo em Revista Científica Internacional
• Data: 2000

Autores

Avelino, PP (Autor) FCUP; Martins, CJAP (Autor) Outra

Revista

Título: Physical Review Letters

Vol. 85

Páginas: 1370-1373

ISSN: 0031-9007

Editora: American Physical Society

Indexação

ISI Web of Knowledge - 19 Citações

Scopus - 20 Citações

Outras Informações

ID Authenticus: P-000-Z8H

DOI: 10.1103/physrevlett.85.1370

Abstract (EN): In the context of "two-metric" theories of gravity there is the possibility that cosmic defects will produce a spectrum of primordial adiabatic density perturbations, when the speed characterizing the defect-producing scalar field is much larger than the speed characterizing gravity and standard model particles. This model will exactly mimic the standard predictions of inflationary models, with the exception of a small non-Gaussian signal which could be detected by future experiments.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4