Higher order corrections to deflection angle of massive particles and light rays in plasma media for stationary spacetimes using the Gauss-Bonnet theorem
| Autor: | Gabriel Sebastian Crisnejo, Emanuel Gallo, Kimet Jusufi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
010308 nuclear & particles physics FOS: Physical sciences GRAVITATIONAL LENSING purl.org/becyt/ford/1.3 [https] General Relativity and Quantum Cosmology (gr-qc) Plasma 01 natural sciences Ray General Relativity and Quantum Cosmology Deflection angle purl.org/becyt/ford/1 [https] Gravitational lens PLASMA PHYSICS Gauss–Bonnet theorem 0103 physical sciences Order (group theory) BLACK HOLES 010306 general physics Mathematical physics |
| Zdroj: | CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| ISSN: | 2470-0029 2470-0010 |
| DOI: | 10.1103/physrevd.100.104045 |
| Popis: | The purpose of this article is twofold. First, we extend the results presented in [Gabriel Crisnejo and Emanuel Gallo, Phys.Rev.D 97, 124016 (2018)] to stationary spacetimes. Specifically, we show that the Gauss-Bonnet theorem can be applied to describe the deflection angle of light rays in plasma media in stationary spacetimes. Second, by using a correspondence between the motion of light rays in a cold non magnetized plasma and relativistic test massive particles we show that this technique is not only powerful to obtain the leading order behavior of the deflection angle of massive/massless particles in the weak field regime but also to obtain higher order corrections. We particularize it to a Kerr background where we compute the deflection angle for test massive particles and light rays propagating in a non homogeneous cold plasma by including third order corrections in the mass and spin parameters of the black hole. New plots. Accepted for publication in PRD |
| Databáze: | OpenAIRE |
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