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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.)

Follow-up signals from superradiant instabilities of black hole merger remnants

Texto completo
Autor(es):
Ghosh, Shrobana [1] ; Berti, Emanuele [1, 2] ; Brito, Richard [3, 4, 5] ; Richartz, Mauricio [6]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Mississippi, Dept Phys & Astron, University, MS 38677 - USA
[2] Johns Hopkins Univ, Dept Phys & Astron, 3400 North Charles St, Baltimore, MD 21218 - USA
[3] Albert Einstein Inst, Max Planck Inst Gravitat Phys, Muhlenberg 1, D-14476 Potsdam - Germany
[4] Sapienza Univ Rome, Dipartimento Fis, Piazzale Aldo Moro 5, I-00185 Rome - Italy
[5] Sez INFN Roma1, Piazzale Aldo Moro 5, I-00185 Rome - Italy
[6] UFABC, Ctr Matemat Comp & Cogn, BR-09210170 Sao Paulo - Brazil
Número total de Afiliações: 6
Tipo de documento: Artigo Científico
Fonte: Physical Review D; v. 99, n. 10 MAY 14 2019.
Citações Web of Science: 0
Resumo

Superradiant instabilities can trigger the formation of bosonic clouds around rotating black holes. If the bosonic field growth is sufficiently fast, these clouds could form shortly after a binary black hole merger. Such clouds are continuous sources of gravitational waves whose detection (or lack thereof) can probe the existence of ultralight bosons (such as axionlike particles) and their properties. Motivated by the binary black hole mergers seen by Advanced LIGO so far, we investigate in detail the parameter space that can be probed with continuous gravitational wave signals from ultralight scalar field clouds around black hole merger remnants with particular focus on future ground-based detectors (A+, Voyager and Cosmic Explorer). We also study the impact that the confusion noise from a putative stochastic gravitational-wave background from unresolved sources would have on such searches and we estimate, under different astrophysical priors, the number of binary black hole merger events that could lead to an observable postmerger signal. Under our most optimistic assumptions, Cosmic Explorer could detect dozens of postmerger signals. (AU)

Processo FAPESP: 13/09357-9 - Física e geometria do espaço-tempo
Beneficiário:Alberto Vazquez Saa
Linha de fomento: Auxílio à Pesquisa - Temático