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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Forecast constraints on f(T) gravity with gravitational waves from compact binary coalescences

Texto completo
Autor(es):
Nunes, Rafael C. [1] ; Alves, Marcio E. S. [2] ; de Araujo, Jose C. N. [1]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Inst Nacl Pesquisas Espaciais, Div Astrofis, Ave Astronautas 1758, BR-12227010 Sao Jose Dos Campos, SP - Brazil
[2] Univ Estadual Paulista UNESP, Inst Ciencia & Tecnol, BR-12247004 Sao Jose Dos Campos, SP - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Physical Review D; v. 100, n. 6 SEP 9 2019.
Citações Web of Science: 5
Resumo

The direct detection of gravitational waves (GWs) opened a new chapter in the modern cosmology to probe possible deviations from the general relativity (GR) theory. In the present work, we investigate for the first time the modified GW form propagation from the inspiraling of compact binary systems within the context of f (T) gravity in order to obtain new forecasts/constraints on the free parameter of the theory. First, we show that the modified waveform differs from the GR waveform essentially due to induced corrections on the GWs amplitude. Then, we discuss the forecasts on the f (T) gravity assuming simulated sources of GWs as black hole binaries, neutron star binaries and black hole-neutron star binary systems, which emit GWs in the frequency band of the Advanced LIGO (aLIGO) interferometer and of the third generation Einstein Telescope (ET). We show that GW sources detected within the aLIGO sensitivity can return estimates of the same order of magnitude of the current cosmological observations. On the other hand, detection within the ET sensitivity can improve by up to 2 orders of magnitude the current bound on the f(T) gravity. Therefore, the statistical accuracy that can be achieved by future ground based GW observations, mainly with the ET detector (and planed detectors with a similar sensitivity), can allow strong bounds on the free parameter of the theory, and can be decisive to test the theory of gravitation. (AU)

Processo FAPESP: 18/18036-5 - Investigando aspectos físicos além do modelo padrão ligados aos temas de energia escura, gravidade modificada, neutrinos e ondas gravitacionais
Beneficiário:Rafael da Costa Nunes
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 13/26258-4 - Matéria superdensa no universo
Beneficiário:Manuel Máximo Bastos Malheiro de Oliveira
Linha de fomento: Auxílio à Pesquisa - Temático