Astrophysical probes of fundamental physics

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2008

Autores

Martins, CJAP (Autor) FCUP

Ata de Conferência Internacional

Título: PRECISION SPECTROSCOPY IN ASTROPHYSICS

Páginas: 89-94

Conference on Precision Spectroscopy in Astrophysics

Aveiro, PORTUGAL, SEP 11-15, 2006

Indexação

ISI Web of Knowledge - 2 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-004-4FN

DOI: 10.1007/978-3-540-75485-5_20

Abstract (EN): I review the theoretical motivation for varying fundamental couplings and discuss how these measurements can be used to constrain a number of fundamental physics scenarios that would otherwise be inacessible to experiment. As a case study I will focus on the relation between varying couplings and dark energy, and explain how varying coupling measurements can be used to probe the nature of dark energy, with important advantages over the standard methods. Assuming that the current observational evidence for varying alpha and mu is correct, a several-sigma detection of dynamical dark energy is feasible within a few years, using currently operational ground-based facilities. With forthcoming instruments like CODEX, a high-accuracy reconstruction of the equation of state may be possible all the way up to redshift z similar to 4.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6