| Texto completo | |
| Autor(es): |
dos Anjos, Rita C.
;
Coimbra-Araujo, Carlos H.
;
da Rocha, Roldao
;
de Souza, Vitor
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Cosmology and Astroparticle Physics; v. N/A, n. 3, p. 15-pg., 2016-03-01. |
| Resumo | |
Ultra high energy cosmic rays (UHECRs) probably originate in extreme conditions in which extra dimension effects might be important. In this paper we calculate the correction in black hole accretion mechanisms due to extra dimension effects in the static and rotating cases. A parametrization of the external Kerr horizons in both cases is presented and analysed. We use previous calculations of upper limits on the UHECR flux to set limits on the UHECR production efficiency of nine sources. The upper limit on the UHECR luminosity calculation is based on GeV-TeV gamma-ray measurements. The total luminosity due to the accretion mechanism is compared to the upper limit on UHECRs. The dependence of the UHECR production efficiency upper limit on black hole mass is also presented and discussed. (AU) | |
| Processo FAPESP: | 15/10270-0 - Correspondência fluido / gravidade e aplicações |
| Beneficiário: | Roldão da Rocha |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 14/19946-4 - Nova geração de detectores de múons RPC para medida de raios cósmicos de altíssima energia com grande precisão |
| Beneficiário: | Carola Dobrigkeit Chinellato |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |