Effects of short-distance modifications to general relativity in spinning binary systems

Autor(es)

Lins, Aline Nascimento ; Sturani, Riccardo

• Tipo de documento: Artigo Científico
• Fonte: PHYSICAL REVIEW D; v. 103, n. 8, p. 23-pg., 2021-04-19.

Resumo

We investigate the possibility of testing short-distance modifications to general relativity via higher-curvature terms in the fundamental gravity Lagrangian by analyzing their impact on observations of spinning astronomical binary systems. By using effective field theory methods applied to the two-body problem, generic lower bounds on the short-distance scale accompanying high-curvature terms can be set. In particular, we extend known results by deriving spin-dependent effects in binding energy, radiation emission process, and spin precession equations in binary systems, which are the fundamental ingredients to observe spin-dependent effects in gravitational wave detections from compact binary coalescences and spin precession in double binary pulsars. (AU)

• Processo FAPESP: 16/01343-7 - ICTP Instituto Sul-Americano para Física Fundamental: um centro regional para física teórica
• Beneficiário: Nathan Jacob Berkovits
• Modalidade de apoio: Auxílio à Pesquisa - Projetos Especiais