Detection of scalar fields by extreme mass ratio inspirals with a Kerr black hole

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Autor(es): dc.contributorYangzhou University-
Autor(es): dc.contributorShanghai Jiao Tong University-
Autor(es): dc.contributorHuazhong University of Science and Technology-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorGuo, Hong-
Autor(es): dc.creatorLiu, Yunqi-
Autor(es): dc.creatorZhang, Chao-
Autor(es): dc.creatorGong, Yungui-
Autor(es): dc.creatorQian, Wei-Liang-
Autor(es): dc.creatorYue, Rui-Hong-
Data de aceite: dc.date.accessioned2025-08-21T18:49:09Z-
Data de disponibilização: dc.date.available2025-08-21T18:49:09Z-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2022-07-15-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1103/PhysRevD.106.024047-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/240647-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/240647-
Descrição: dc.descriptionWe study extreme mass ratio inspirals occurring in modified gravity, for which the system is modeled by a small compact object with scalar charge spiraling into a supermassive Kerr black hole. Besides the tensorial gravitational waves arising from the metric perturbations, radiation is also induced by the scalar field. The relevant metric and scalar perturbations are triggered by the orbital motion of the small object, which give rise to a system of inhomogeneous differential equations under the adiabatic approximation. Such a system of equations is then solved numerically using a Green's function furnished by the solutions of the corresponding homogeneous equations. To explore the present scenario from an observational perspective, we investigate how the pertinent observables are dependent on specific spacetime configurations. In this regard, the energy fluxes and the gravitational-wave dephasing accumulated during the process are evaluated, as functions of the scalar charge, mass ratio, and spin of the central supermassive black hole. In particular, the presence of additional scalar emission leads to a more significant rate of overall energy loss which, in turn, decreases the total number of orbital cycles before the small object plunges into the central black hole. Moreover, for a central black hole with a higher spin, the imprints of the scalar charge on the resultant gravitational radiation are found to be more significant, which indicates the possibility of detecting the scalar charge.-
Descrição: dc.descriptionCenter for Gravitation and Cosmology College of Physical Science and Technology Yangzhou University-
Descrição: dc.descriptionShanghai Frontier Research Center for Gravitational Wave Detection Shanghai Jiao Tong University-
Descrição: dc.descriptionSchool of Aeronautics and Astronautics Shanghai Jiao Tong University-
Descrição: dc.descriptionSchool of Physics Huazhong University of Science and Technology, Hubei-
Descrição: dc.descriptionEscola de Engenharia de Lorena Universidade de São Paulo, SP-
Descrição: dc.descriptionFaculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista, Guaratinguetá, SP-
Descrição: dc.descriptionFaculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista, Guaratinguetá, SP-
Idioma: dc.languageen-
Relação: dc.relationPhysical Review D-
???dc.source???: dc.sourceScopus-
Título: dc.titleDetection of scalar fields by extreme mass ratio inspirals with a Kerr black hole-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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