Zobrazeno 1 - 10
of 50
pro vyhledávání: '"C. S. Leite"'
Publikováno v:
ACS Omega, Vol 9, Iss 23, Pp 24987-24997 (2024)
Externí odkaz:
https://doaj.org/article/9a2ed9d292734140ab5d41006eae42ae
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 8, Pp 1-7 (2022)
Abstract We study the scattering of light-like geodesics and massless scalar waves by a static Konoplya–Zhidenko black hole, considering the case that the parametrized black hole solution contains a single deformation parameter. By performing a geo
Externí odkaz:
https://doaj.org/article/b524576fedfd43c0a6406025c6aca486
Publikováno v:
Chemical Engineering Transactions, Vol 92 (2022)
Technologies and processes that minimize the dependence on petroleum products are among the most significant challenges of our time. Lignocellulosic biomass, such as sugarcane bagasse, is a promising alternative for obtaining a wide range of products
Externí odkaz:
https://doaj.org/article/6a280b989de749b48c50e9b78ee40416
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 5, Pp 1-9 (2020)
Abstract Black holes are among the most intriguing objects in nature. They are believed to be fully described by General Relativity (GR), and the astrophysical black holes are expected to belong to the Kerr family, obeying the no-hair theorems. Alter
Externí odkaz:
https://doaj.org/article/645efd34d6fc454eaa8753f98ad0df38
Publikováno v:
Physics Letters B, Vol 795, Iss , Pp 496-501 (2019)
We investigate the scattering of a massless scalar field by a Kerr-Newman black hole, considering the case of on-axis incidence. We use the partial wave method to find numerical results for the scattering cross section, which we compare with classica
Externí odkaz:
https://doaj.org/article/42b4ce521fa5411f89a0eccc409e87ad
Autor:
Sérgio V. M. C. B. Xavier, Luiz C. S. Leite, Carolina L. Benone, Carlos A. R. Herdeiro, Luís C. B. Crispino
Publikováno v:
Revista Brasileira de Ensino de Física, Vol 42 (2020)
Resumo Buracos negros são regiões aprisionadas do espaço-tempo. A sua inexorável atração gravitacional determina que nada – nem mesmo a luz – pode escapar desta região. Logo, um buraco negro não pode ser observado diretamente. Tem de ser
Externí odkaz:
https://doaj.org/article/d31578c297dd49b4a2fe613a9c9e9013
Publikováno v:
The Sixteenth Marcel Grossmann Meeting.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f39c1de1ea725e64e7d69c76e677fc14
https://doi.org/10.1142/9789811269776_0372
https://doi.org/10.1142/9789811269776_0372
We investigate the scattering properties of a massless scalar field in the background of a charged Ay\'on-Beato-Garc\'ia regular black hole solution. Using a numerical approach, we compute the differential scattering cross section for arbitrary value
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd0588be679f9f8c5cdac61df40951bf
http://arxiv.org/abs/2207.05215
http://arxiv.org/abs/2207.05215
Autor:
Hugo F. F. Novaes, Paula C. S. Leite, Rafaela A. Almeida, Ney C. B. Sorte, Ubirajara Barroso Júnior
Publikováno v:
International Brazilian Journal of Urology, Vol 39, Iss 2, Pp 248-256 (2013)
Introduction In some occasions, correlations between human structures can help planning surgical intra-abdominal interventions. The previous determination of ureteral length helps pre-operatory planning of surgeries, reduces costs of auxiliary exams,
Externí odkaz:
https://doaj.org/article/1183061216e141d88d813e75802d41dc
Obtaining black hole solutions in alternative theories of gravity can be a difficult task due to cumbersome field equations that arise in many of such theories. In order to study the strong field regime in a model-free approach, one can consider defo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e3572b2b56d787f1970aec9e57856af
http://arxiv.org/abs/2112.01345
http://arxiv.org/abs/2112.01345